subject:(Fractional crystallization)

Brigham Young University

1. Dailey, Shane Robert. Geochemistry of the Fluorine- and Beryllium-Rich Spor Mountain Rhyolite, Western Utah.

Degree: MS, 2016, Brigham Young University

URL: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=7258&context=etd

► The Miocene rhyolites of the Spor Mountain Formation hosts the world's largest beryllium deposit which produced 85% of the world's beryllium in 2010. The fresh… (more)

▼ The Miocene rhyolites of the Spor Mountain Formation hosts the world's largest beryllium deposit which produced 85% of the world's beryllium in 2010. The fresh lava is extremely enriched in Be (up to 75 ppm in matrix glass). We have examined the rhyolite to understand the Be enrichment. The Spor Mountain rhyolite contains ~40% quartz, ~40% sanidine, ~10% biotite, and ~10% plagioclase, along with accessory fluorite, columbite, euxenite, fergusonite, monazite, thorite, and zircon. Two types of rhyolite erupted within the Spor Mountain Formation, a less evolved magma (1150 ppm Rb, 42 ppm Be, 0.68 wt% F in matrix glass) and an evolved magma (1710 ppm Rb, 75 ppm Be, 1.56 wt% F in matrix glass). Eruption temperatures estimated using zircon saturation, feldspar-liquid, two feldspar, and Ti-in-quartz geothermometers converge on 718 °C for the less evolved magma and 682 °C for the evolved magma. Using the Ti-in-Qz equation of Huang and Audetat (2012), the pressure of the Spor Mountain rhyolite system is estimated to be around 2 kbar at 700°C. Water content of the rhyolite melt was less than <5 wt%, based on the presence of all four major mineral phases at 700°C and the magma was water undersaturated (Webster et al., 1987). Viscosity of the rhyolite was about 6.2 log Pa·s for the less evolved rhyolite and 5.8 log Pa·s for the evolved rhyolite. Magma viscosities calculated using the Einstein-Roscoe question suggest the evolved magma has a slightly higher viscosity than the less evolved magma (7.0 log Pa·s in the evolved magma vs 6.7 log Pa·s in the less evolved magma) because of higher phenocryst content. Fluorine lowered the melt viscosity, though not by a significant amount (less than 0.5 log units at 1.7 wt% F). Partition coefficients for 32 elements have been calculated for biotite, for 21 elements for sanidine and plagioclase, and for 6 elements for quartz, using data acquired by laser ablation inductively coupled plasma mass spectrometry. Partition coefficients for feldspars in the Spor Mountain rhyolite are generally higher than other silicic magmas, and lower for biotite. Beryllium is one of the most incompatible trace elements in the Spor Mountain rhyolite, with a bulk partition coefficient <0.1. Volatile content of the melt (specifically F), melt composition, and the low temperature of crystallization act as the major controls of trace element partitioning. Trace element models using these partition coefficients suggests that crystal fractionation is the dominant magmatic enrichment process within the rhyolite, requiring ~45% crystallization (f = 55%) of the observed phenocrysts to get compositions from the less evolved to evolved rhyolite. Accumulation of batches of melt formed by different degrees of partial melting cannot explain the great depletion of compatible elements.

Subjects/Keywords: Spor Mountain; partition coefficients; beryllium; fractional crystallization; topaz rhyolite; fluorine; Geology

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APA (6^th Edition):

Dailey, S. R. (2016). Geochemistry of the Fluorine- and Beryllium-Rich Spor Mountain Rhyolite, Western Utah. (Masters Thesis). Brigham Young University. Retrieved from https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=7258&context=etd

Chicago Manual of Style (16^th Edition):

Dailey, Shane Robert. “Geochemistry of the Fluorine- and Beryllium-Rich Spor Mountain Rhyolite, Western Utah.” 2016. Masters Thesis, Brigham Young University. Accessed April 14, 2021. https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=7258&context=etd.

MLA Handbook (7^th Edition):

Dailey, Shane Robert. “Geochemistry of the Fluorine- and Beryllium-Rich Spor Mountain Rhyolite, Western Utah.” 2016. Web. 14 Apr 2021.

Vancouver:

Dailey SR. Geochemistry of the Fluorine- and Beryllium-Rich Spor Mountain Rhyolite, Western Utah. [Internet] [Masters thesis]. Brigham Young University; 2016. [cited 2021 Apr 14]. Available from: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=7258&context=etd.

Council of Science Editors:

Dailey SR. Geochemistry of the Fluorine- and Beryllium-Rich Spor Mountain Rhyolite, Western Utah. [Masters Thesis]. Brigham Young University; 2016. Available from: https://scholarsarchive.byu.edu/cgi/viewcontent.cgi?article=7258&context=etd

University of Western Ontario

2. Bynoe, Laurisha. Shear zone influence on the emplacement of a giant pegmatite: The Whabouchi Lithium Pegmatite, Quebec,Canada.

Degree: 2014, University of Western Ontario

URL: https://ir.lib.uwo.ca/etd/1987

► The Whabouchi pegmatite is within a transpressional high-strain zone of a metamorphosed volcano-sedimentary belt. A well-developed subvertical transposition foliation and a subvertical stretching lineation are… (more)

Subjects/Keywords: Pegmatite; lithium; spodumene; exploration; shear zone; fractional crystallization; Geochemistry; Geology; Tectonics and Structure

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APA (6^th Edition):

Bynoe, L. (2014). Shear zone influence on the emplacement of a giant pegmatite: The Whabouchi Lithium Pegmatite, Quebec,Canada. (Thesis). University of Western Ontario. Retrieved from https://ir.lib.uwo.ca/etd/1987

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Bynoe, Laurisha. “Shear zone influence on the emplacement of a giant pegmatite: The Whabouchi Lithium Pegmatite, Quebec,Canada.” 2014. Thesis, University of Western Ontario. Accessed April 14, 2021. https://ir.lib.uwo.ca/etd/1987.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Bynoe, Laurisha. “Shear zone influence on the emplacement of a giant pegmatite: The Whabouchi Lithium Pegmatite, Quebec,Canada.” 2014. Web. 14 Apr 2021.

Vancouver:

Bynoe L. Shear zone influence on the emplacement of a giant pegmatite: The Whabouchi Lithium Pegmatite, Quebec,Canada. [Internet] [Thesis]. University of Western Ontario; 2014. [cited 2021 Apr 14]. Available from: https://ir.lib.uwo.ca/etd/1987.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Bynoe L. Shear zone influence on the emplacement of a giant pegmatite: The Whabouchi Lithium Pegmatite, Quebec,Canada. [Thesis]. University of Western Ontario; 2014. Available from: https://ir.lib.uwo.ca/etd/1987

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Georgia

3. Schrader, Christian Michael. Petrology and F and CL systematics of Rattlesnake Mountain and Bone Springs Sills, Trans-Pecos Magmatic Province, Texas.

Degree: 2014, University of Georgia

URL: http://hdl.handle.net/10724/26146

► This study investigates the petrogenesis and differentiation history of Rattlesnake Mountain Sill (RMS) and Bone Springs Sills (BSS) from the Trans-Pecos Magmatic Province (TPMP). Both… (more)

▼ This study investigates the petrogenesis and differentiation history of Rattlesnake Mountain Sill (RMS) and Bone Springs Sills (BSS) from the Trans-Pecos Magmatic Province (TPMP). Both are nepheline-normative shallow intrusions. I conducted piston-cylinder experiments on a fine-grained sample of RMS, chosen to represent the benmoreitic composition of the intruding magma. Experimental conditions spanned 8 to 20 kb with 0, 2, 4, and 8% added H2O. Garnet is common above 15 kb with <4% added H2O. Apatite and ilmenite are nearly ubiquitous, and biotite, amphibole, and clinopyroxene are common. No run products contain olivine, indicating that the RM magma is not a primary mantle melt and that it last differentiated at pressures less than the experimental pressures. The melt (glass) compositions show that it is possible to reach silica saturation from undersaturated compositions with biotite rather than amphibole fractionation as the primary agent. Evidence is insufficient to claim that this occurred in the TPMP, but it warrants consideration for provinces that have both silica-saturated and –undersaturated rocks. Bones Springs Sill differentiated from tephritic magma to a bimodal monzogabbro-monzosyenite suite. Monzosyenite liquid was generated by ~50% crystallization. Most of the liquid crystallized in the interstices of the monzogabbro but some segregated into discrete monzosyenite bodies in the upper 1/3rd of the sill. The most felsic monzosyenites were generated by an additional ~8% crystallization. Apatite and biotite compositions record Cl loss concurrent with the separation and segregation of the differentiated monzosyenite liquid. This is probably related to the exsolution of a volatile phase during which volume expansion ruptured the crystalline framework and allowed migration of the interstitial liquid. Devolatilization caused an attendant loss of Cl by its partitioning into the vapor phase. Apatite and biotite in the monzosyenite-rich upper portion of BSS have the highest F/Cl in the sill as a result of F increase with differentiation and Cl loss to vapor exsolution. An apatite-biotite mineral pair included in Ti-magnetite from this section records a temperature of 1093 ± 103 C. These minerals have high F/Cl, suggesting that their inclusion postdates devolatilization and segregation of the residual liquid.

Subjects/Keywords: Trans-Pecos Magmatic Province; Big Bend; alkaline igneous rocks; fractional crystallization; halogens

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APA (6^th Edition):

Schrader, C. M. (2014). Petrology and F and CL systematics of Rattlesnake Mountain and Bone Springs Sills, Trans-Pecos Magmatic Province, Texas. (Thesis). University of Georgia. Retrieved from http://hdl.handle.net/10724/26146

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Schrader, Christian Michael. “Petrology and F and CL systematics of Rattlesnake Mountain and Bone Springs Sills, Trans-Pecos Magmatic Province, Texas.” 2014. Thesis, University of Georgia. Accessed April 14, 2021. http://hdl.handle.net/10724/26146.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Schrader, Christian Michael. “Petrology and F and CL systematics of Rattlesnake Mountain and Bone Springs Sills, Trans-Pecos Magmatic Province, Texas.” 2014. Web. 14 Apr 2021.

Vancouver:

Schrader CM. Petrology and F and CL systematics of Rattlesnake Mountain and Bone Springs Sills, Trans-Pecos Magmatic Province, Texas. [Internet] [Thesis]. University of Georgia; 2014. [cited 2021 Apr 14]. Available from: http://hdl.handle.net/10724/26146.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Schrader CM. Petrology and F and CL systematics of Rattlesnake Mountain and Bone Springs Sills, Trans-Pecos Magmatic Province, Texas. [Thesis]. University of Georgia; 2014. Available from: http://hdl.handle.net/10724/26146

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

University of Texas – Austin

4. Sosa Ceballos, Giovanni 1975-. Evolution of Plinian magmas from Popocatépetl Volcano, México.

Degree: PhD, Geological Sciences, 2011, University of Texas – Austin

URL: http://hdl.handle.net/2152/26905

► Fractional crystallization, magma mixing, assimilation of continental crust, and how those processes modify volatile budgets, control the evolution of magma. As a consequence, the understanding… (more)

▼ Fractional crystallization, magma mixing, assimilation of continental crust, and how those processes modify volatile budgets, control the evolution of magma. As a consequence, the understanding of these processes, their magnitudes, and timescales is critical for interpreting ancient magma systems, their eruptions, and the potential future volcanic activity. In this dissertation I present the results of three projects. The first explores how magmatic processes affect magma reservoirs and eruption dynamics. The second explores where in the storage system and how often these processes occur. The third explores how volatile budgets are modified by processes such as crystallization, mixing, and assimilation. Volcán Popocatépetl (central México) erupted ~14100 14C yr BP producing the Tutti Frutti Plinian Eruption (TFPE). The eruption tapped two different silicic magmas that mixed just prior and during the eruption. The influx of mass and volatiles generated during the mixing of both magmas overpressured the reservoir, which was weakened at the top. The weakened reservoir relaxed while magma was tapped and collapsed to form a caldera at the surface. Although it is known that fractional crystallization, mixing, and assimilation can greatly modify magmas, the frequency and intensity of these events is not known. I investigated the magmatic processes responsible for the evolution of magmas erupted during five Plinian events of Popocatépetl volcano. Results show that during the last 23 ky magma was stored in two different zones, and was variably modified by replenishments of mafic magma. Interestingly, little evidence for large mafic inputs triggering explosive eruptions was found. Each of these processes alters the abundances of volatiles and introduces different types of volatiles to the system. Hence, the volatile budget of magma can have a rich and complex history. To investigate how volatile budgets evolve in active magma systems, I analyzed the abundances of volatiles (H2O, CO2, F, Cl, and S) in numerous glass inclusions trapped in phenocrysts. Results show that the magmas that produced the last five Plinian eruptions at Popocatépetl volcano evolved by crystallization and magma mixing, assimilation of the local carbonate basement is not chemically appreciable. Mixing with mafic magmas added substantial CO2 and S to the system, dewatered the magma, yet produced little change in the F contents of the magmas. Advisors/Committee Members: Gardner, James Edward, 1963- (advisor).

Subjects/Keywords: Popocatepetl Volcano; Mexico; Caldera; Volatile budgets; Magma mixing; Plinian; Fractional crystallization; Continental crust

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APA (6^th Edition):

Sosa Ceballos, G. 1. (2011). Evolution of Plinian magmas from Popocatépetl Volcano, México. (Doctoral Dissertation). University of Texas – Austin. Retrieved from http://hdl.handle.net/2152/26905

Chicago Manual of Style (16^th Edition):

Sosa Ceballos, Giovanni 1975-. “Evolution of Plinian magmas from Popocatépetl Volcano, México.” 2011. Doctoral Dissertation, University of Texas – Austin. Accessed April 14, 2021. http://hdl.handle.net/2152/26905.

MLA Handbook (7^th Edition):

Sosa Ceballos, Giovanni 1975-. “Evolution of Plinian magmas from Popocatépetl Volcano, México.” 2011. Web. 14 Apr 2021.

Vancouver:

Sosa Ceballos G1. Evolution of Plinian magmas from Popocatépetl Volcano, México. [Internet] [Doctoral dissertation]. University of Texas – Austin; 2011. [cited 2021 Apr 14]. Available from: http://hdl.handle.net/2152/26905.

Council of Science Editors:

Sosa Ceballos G1. Evolution of Plinian magmas from Popocatépetl Volcano, México. [Doctoral Dissertation]. University of Texas – Austin; 2011. Available from: http://hdl.handle.net/2152/26905

Universidade do Estado do Rio de Janeiro

5. Thiago Dutra dos Santos. Petrogênese dos basaltos de baixo-TiO2 do enxame de diques da Serra do Mar na Região dos Lagos, RJ.

Degree: Master, 2006, Universidade do Estado do Rio de Janeiro

URL: http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=381 ; http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=374 ; http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=375 ; http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=376 ; http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=377 ; http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=378 ; http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=379 ; http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=380 ;

►

Diques de basaltos toleíticos de baixo-TiO2 ocorrem na porção oriental do Enxame de Diques da Serra do Mar, na Região dos Lagos, entre Niterói e… (more)

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Diques de basaltos toleíticos de baixo-TiO2 ocorrem na porção oriental do Enxame de Diques da Serra do Mar, na Região dos Lagos, entre Niterói e Búzios. Eles têm direções, preferencialmente, NE-SW, subordinadamente, NNE-SSW e mais raramente, NW-SE, e formas intrusivas variáveis. Os basaltos são holocristalinos a hipocristalinos, inequigranulares a equigranulares, intergranulares e intersertais. Eles são constituídos essencialmente de plagioclásio, augita e/ou pigeonita, com olivina corroída, minerais opacos e apatita como minerais acessórios e biotita, bowlingita, idingisita, uralita e saussurita como minerais secundários. A assembléia de fenocristais destas rochas foi estimada em 15% de olivina, 40% de augita e 45% de plagioclásio. Os rochas inserem-se numa série basáltica subalcalina de afinidade toleítica de baixo-TiO2 pouco expandida (MgO= 8,13-5,91%peso), não tendo sido encontradas amostras representativas de líquidos basálticos primários. Esta suíte predominante foi denominada Suíte Costa Azul. No entanto, os dados litogeoquímicos apontam para a existência de mais que uma suíte de baixo-TiO2 na área de estudo que, segundo modelos de fusão parcial em equilíbrio modal, poderiam ter sido geradas por diferentes quantidades de fusão a partir de uma mesma fonte com granada residual. Em termos regionais, a suíte Costa Azul pode ser relacionada com a Suíte Esmeralda que ocorre na subprovíncia Sul de Paraná-Etendeka, muito embora abrangendo um espectro mais amplo de razões Ti/Y. As rochas da suíte Costa Azul evoluíram por 42% de cristalização fracionada envolvendo uma assembléia de fenocristais composta por 15% de olivina, 40% de augita e 45% de plagioclásio, sem mudança de assembléia fracionante. Misturas de componentes mantélicos empobrecidos (mínimo de 72% de D-MORB) e enriquecidos (máximo de 28% de manto litosférico subcontinental) estão associadas à petrogênese desta suíte. Misturas entre componentes do tipo pluma e litosféricos não conseguem explicar as composições parentais da suíte. Os modelos petrogenéticos permitiram a proposição de um modelo geodinâmico envolvendo delaminação do manto litosférico subcontinental englobado por células convectivas ascendentes do manto sublifosférico subjacente em níveis astenosféricos pouco profundos durante um estágio avançado de rifteamento do supercontinente Gondwana.

Low-TiO2, tholeiitic basalt dykes occur eastwards the Serra do Mar Dyke Swarm within the Região dos Lagos from Niterói up to Búzios city. The dykes strike preferentially NE-SW bearing variable intrusive structures. The basalts are holo- to hypocrystaline, equigranular to inequigranular rocks with mostly intergranular and intersertal textures. They are composed mostly by plagioclase, augite and/or pigeonite and have corroded olivine, opaque minerals and apatite as accessory phases. Secondary mineralas are represented by biotite, bowlingite, iddingisite, uralite and saussurite. The phenocrysts assemblage comprise 15% olivine, 40% augite and 45% plagioclase. The rocks comprise a low-TiO2, subalkaline,…

Advisors/Committee Members: Claudia Sayão Valladares, Beatriz Paschoal Duarte, Márcio Martins Pimentel.

Subjects/Keywords: GEOLOGIA; Basaltos toleíticos; Modelos de cristalização fracionada; Fusão parcial; Mistura de fontes; Modelos geodinâmicos; Tholeiitic basalts; Fractional crystallization; Partial melting; Mixture of Sources; Geodynamic models

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APA (6^th Edition):

Santos, T. D. d. (2006). Petrogênese dos basaltos de baixo-TiO2 do enxame de diques da Serra do Mar na Região dos Lagos, RJ. (Masters Thesis). Universidade do Estado do Rio de Janeiro. Retrieved from http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=381 ; http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=374 ; http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=375 ; http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=376 ; http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=377 ; http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=378 ; http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=379 ; http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=380 ;

Chicago Manual of Style (16^th Edition):

Santos, Thiago Dutra dos. “Petrogênese dos basaltos de baixo-TiO2 do enxame de diques da Serra do Mar na Região dos Lagos, RJ.” 2006. Masters Thesis, Universidade do Estado do Rio de Janeiro. Accessed April 14, 2021. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=381 ; http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=374 ; http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=375 ; http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=376 ; http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=377 ; http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=378 ; http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=379 ; http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=380 ;.

MLA Handbook (7^th Edition):

Santos, Thiago Dutra dos. “Petrogênese dos basaltos de baixo-TiO2 do enxame de diques da Serra do Mar na Região dos Lagos, RJ.” 2006. Web. 14 Apr 2021.

Vancouver:

Santos TDd. Petrogênese dos basaltos de baixo-TiO2 do enxame de diques da Serra do Mar na Região dos Lagos, RJ. [Internet] [Masters thesis]. Universidade do Estado do Rio de Janeiro; 2006. [cited 2021 Apr 14]. Available from: http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=381 ; http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=374 ; http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=375 ; http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=376 ; http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=377 ; http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=378 ; http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=379 ; http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=380 ;.

Council of Science Editors:

Santos TDd. Petrogênese dos basaltos de baixo-TiO2 do enxame de diques da Serra do Mar na Região dos Lagos, RJ. [Masters Thesis]. Universidade do Estado do Rio de Janeiro; 2006. Available from: http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=381 ; http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=374 ; http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=375 ; http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=376 ; http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=377 ; http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=378 ; http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=379 ; http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=380 ;

Delft University of Technology

6. Jansens, P.J. Fractional suspension crystallization of organic compounds.

Degree: 1994, Delft University of Technology

URL: http://resolver.tudelft.nl/uuid:e734ab88-2c28-478c-b7a0-ffc64207ea78 ; urn:NBN:nl:ui:24-uuid:e734ab88-2c28-478c-b7a0-ffc64207ea78 ; urn:NBN:nl:ui:24-uuid:e734ab88-2c28-478c-b7a0-ffc64207ea78 ; http://resolver.tudelft.nl/uuid:e734ab88-2c28-478c-b7a0-ffc64207ea78

Subjects/Keywords: fractional crystallization; GMF cooling disc crystallizer; TNO-Thijssen wash column

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Jansens, P. J. (1994). Fractional suspension crystallization of organic compounds. (Doctoral Dissertation). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:e734ab88-2c28-478c-b7a0-ffc64207ea78 ; urn:NBN:nl:ui:24-uuid:e734ab88-2c28-478c-b7a0-ffc64207ea78 ; urn:NBN:nl:ui:24-uuid:e734ab88-2c28-478c-b7a0-ffc64207ea78 ; http://resolver.tudelft.nl/uuid:e734ab88-2c28-478c-b7a0-ffc64207ea78

Chicago Manual of Style (16^th Edition):

Jansens, P J. “Fractional suspension crystallization of organic compounds.” 1994. Doctoral Dissertation, Delft University of Technology. Accessed April 14, 2021. http://resolver.tudelft.nl/uuid:e734ab88-2c28-478c-b7a0-ffc64207ea78 ; urn:NBN:nl:ui:24-uuid:e734ab88-2c28-478c-b7a0-ffc64207ea78 ; urn:NBN:nl:ui:24-uuid:e734ab88-2c28-478c-b7a0-ffc64207ea78 ; http://resolver.tudelft.nl/uuid:e734ab88-2c28-478c-b7a0-ffc64207ea78.

MLA Handbook (7^th Edition):

Jansens, P J. “Fractional suspension crystallization of organic compounds.” 1994. Web. 14 Apr 2021.

Vancouver:

Jansens PJ. Fractional suspension crystallization of organic compounds. [Internet] [Doctoral dissertation]. Delft University of Technology; 1994. [cited 2021 Apr 14]. Available from: http://resolver.tudelft.nl/uuid:e734ab88-2c28-478c-b7a0-ffc64207ea78 ; urn:NBN:nl:ui:24-uuid:e734ab88-2c28-478c-b7a0-ffc64207ea78 ; urn:NBN:nl:ui:24-uuid:e734ab88-2c28-478c-b7a0-ffc64207ea78 ; http://resolver.tudelft.nl/uuid:e734ab88-2c28-478c-b7a0-ffc64207ea78.

Council of Science Editors:

Jansens PJ. Fractional suspension crystallization of organic compounds. [Doctoral Dissertation]. Delft University of Technology; 1994. Available from: http://resolver.tudelft.nl/uuid:e734ab88-2c28-478c-b7a0-ffc64207ea78 ; urn:NBN:nl:ui:24-uuid:e734ab88-2c28-478c-b7a0-ffc64207ea78 ; urn:NBN:nl:ui:24-uuid:e734ab88-2c28-478c-b7a0-ffc64207ea78 ; http://resolver.tudelft.nl/uuid:e734ab88-2c28-478c-b7a0-ffc64207ea78

Miami University

7. Rowland-Smith, Andrea. The 1630 AD eruption of Furnas Volcano, São Miguel, Azores (Portugal): chemical variations and magmatic processes.

Degree: MS, Geology & Environmental Earth Science, 2007, Miami University

URL: http://rave.ohiolink.edu/etdc/view?acc_num=miami1186143145

► Furnas volcano, an active stratovolcano on the island of São Miguel, Azores, is considered one of Europe’s most hazardous volcanoes. This work constitutes the first… (more)

Subjects/Keywords: Azores; trachytic pumices; fractional crystallization; open-system processes; zoned magma chambers

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APA (6^th Edition):

Rowland-Smith, A. (2007). The 1630 AD eruption of Furnas Volcano, São Miguel, Azores (Portugal): chemical variations and magmatic processes. (Masters Thesis). Miami University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=miami1186143145

Chicago Manual of Style (16^th Edition):

Rowland-Smith, Andrea. “The 1630 AD eruption of Furnas Volcano, São Miguel, Azores (Portugal): chemical variations and magmatic processes.” 2007. Masters Thesis, Miami University. Accessed April 14, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=miami1186143145.

MLA Handbook (7^th Edition):

Rowland-Smith, Andrea. “The 1630 AD eruption of Furnas Volcano, São Miguel, Azores (Portugal): chemical variations and magmatic processes.” 2007. Web. 14 Apr 2021.

Vancouver:

Rowland-Smith A. The 1630 AD eruption of Furnas Volcano, São Miguel, Azores (Portugal): chemical variations and magmatic processes. [Internet] [Masters thesis]. Miami University; 2007. [cited 2021 Apr 14]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=miami1186143145.

Council of Science Editors:

Rowland-Smith A. The 1630 AD eruption of Furnas Volcano, São Miguel, Azores (Portugal): chemical variations and magmatic processes. [Masters Thesis]. Miami University; 2007. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=miami1186143145

Bowling Green State University

8. Reindel, Jenna L. The Origin of Basalt and Cause of Melting Beneath East Antarctica as Revealed by the Southernmost Volcanoes on Earth.

Degree: MS, Geology, 2018, Bowling Green State University

URL: http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1542379105898001

► The southernmost volcanoes on Earth, Mt. Early and Sheridan Bluff, are two basaltic monogenetic volcanoes located 87°S at the head of the Scott Glacier, in… (more)

▼ The southernmost volcanoes on Earth, Mt. Early and Sheridan Bluff, are two basaltic monogenetic volcanoes located 87°S at the head of the Scott Glacier, in the southern Transantarctic Mountains. The Early Miocene volcanoes lie ~1000 km from any other volcano and ~200 km from the shoulder of the West Antarctic Rift System (WARS), which is the foci of most Cenozoic alkaline volcanism in Antarctica. WARS is part of a larger diffuse alkaline magmatic province (DAMP) including volcanism in New Zealand and Australia. Dating by the ⁴⁰Ar/³⁹Ar method indicates that Mt. Early is older than previously determined and closer in age to Sheridan Bluff (~19 Ma). Basalts range in composition from alkaline (~6 wt. % Ne-normative) to subalkaline tholeiite (~6 wt. % Hy-normative). Tholeiite have higher ratios of Zr/Nb (9) than alkaline basalts (4) and have lower ratios of La/Yb (5), La/Lu (<50), and Gd/Yb (2) than alkaline basalts (20, 100-150, and ~3 respectively). Fractional crystallization, assimilation-fractional crystallization (AFC), and partial melting are tested as mechanisms to explain compositional variations. Crystal fractionation alone cannot explain the difference in composition. Modelling AFC on plots of Rb, Ba, and La/Nd versus TiO2 show that unrealistic bulk partition coefficients are required to explain the array of compositions using contaminates from the upper crust. I conclude that the coexistence of tholeiite and alkaline basalt is likely due to different degrees of partial melting. The basalts mirror partial melting trends for a common garnet lherzolite source on plots of La/Lu versus Nb/Yb. These models also suggest that tholeiite was produced by higher degrees of melting at shallower depths. Mt. Early and Sheridan Bluff basalt, especially tholeiite, are distinctive from DAMP basalt, having lower Ce/Pb (≤ 20), Gd/Yb (≤ 3) and lack K and Pb anomalies on normalized multi-element plots. Negative K anomalies are a prominent feature of DAMP basalt and are used to support amphibole-rich lithospheric sources. It is likely that the basalts from Mt. Early and Sheridan Bluff were derived from asthenosphere with little or no input from mantle lithosphere. Causes for volcanism in DAMP include passive extension, metasomatism and plumes. A recent viable mechanism for triggering volcanism in this region is lithospheric delamination and has been proposed based on geophysical evidence. Advisors/Committee Members: Panter, Kurt (Advisor).

Subjects/Keywords: Geology; Geochemistry; Petrology; geochemistry, volcanology, Antarctica, East Antarctica, basalt, alkaline basalt, subalkaline basalt, tholeiite, tholeiitic basalt, fractional crystallization, contamination, partial melting, lithospheric delamination

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Reindel, J. L. (2018). The Origin of Basalt and Cause of Melting Beneath East Antarctica as Revealed by the Southernmost Volcanoes on Earth. (Masters Thesis). Bowling Green State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1542379105898001

Chicago Manual of Style (16^th Edition):

Reindel, Jenna L. “The Origin of Basalt and Cause of Melting Beneath East Antarctica as Revealed by the Southernmost Volcanoes on Earth.” 2018. Masters Thesis, Bowling Green State University. Accessed April 14, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1542379105898001.

MLA Handbook (7^th Edition):

Reindel, Jenna L. “The Origin of Basalt and Cause of Melting Beneath East Antarctica as Revealed by the Southernmost Volcanoes on Earth.” 2018. Web. 14 Apr 2021.

Vancouver:

Reindel JL. The Origin of Basalt and Cause of Melting Beneath East Antarctica as Revealed by the Southernmost Volcanoes on Earth. [Internet] [Masters thesis]. Bowling Green State University; 2018. [cited 2021 Apr 14]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1542379105898001.

Council of Science Editors:

Reindel JL. The Origin of Basalt and Cause of Melting Beneath East Antarctica as Revealed by the Southernmost Volcanoes on Earth. [Masters Thesis]. Bowling Green State University; 2018. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1542379105898001

Bowling Green State University

9. CHAKRABORTY, SUVANKAR. THE GEOCHEMICAL EVOLUTION OF ALKALINE MAGMAS FROM THE CRARY MOUNTAINS, MARIE BYRD LAND, ANTARCTICA.

Degree: MS, Geology, 2007, Bowling Green State University

URL: http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1174187928

► Late Cenozoic alkaline volcanism in the Crary Mountains, Marie Byrd Land, Antarctica is associated with the West Antarctic rift system. More than 400 km3 (LeMasurier… (more)

▼ Late Cenozoic alkaline volcanism in the Crary Mountains, Marie Byrd Land, Antarctica is associated with the West Antarctic rift system. More than 400 km3 (LeMasurier et al., 1990) of alkaline magmas were erupted from four major volcanic centers. Based on previous field and dating studies the volcanism occurred between ~9 and <1 Ma and the activity migrated to the south at a rate of ~0.7 cm/yr. The Crary Mountains represent one of four ranges of volcanoes in Marie Byrd Land that show this type of age progression; younging away from the center of the province (LeMasurier and Rex, 1989; Panter et al., 2000). The volcanic deposits at the Crary Mountains consist of lavas and interbedded agglutinated scoria deposits as well as thick hydrovolcanic sequences (hyaloclastites, pillow breccia, tuff) all of which range in composition from basanite to intermediate types to phonolite, trachyte, and rhyolite. This study focuses exclusively on lava samples that are fresh and unaltered. Basaltic rocks are consisting of olivine, clinopyroxene, plagioclase and titanomagnetite phenocrysts. Phenocrysts found in intermediate to felsic compositions include of olivine, clinopyroxene, alkali amphibole, alkali and plagioclase feldspars, nepheline, apatite, titanomagnetite, and aenigmatite. Most of the phenocrysts of different rock types are either unzoned or normally zoned and disequilibrium textures are rare. Stratigraphic sections of Mount Steer and Rees show a complex petrographic history; however, the overall compositions of the Crary Mountains show a change to mafic composition with progression in age. The evolution trends and magma differentiation processes were determined based on geochemistry and geochemical relationships for these alkaline volcanic rocks. Overall, the alkaline lavas from the Crary Mountains show trends of increasing SiO2, Na2O, K2O with decreasing MgO and CaO. On other hand highly incompatible trace elements (e.g., Th, La, Zr) show an increase in concentration with magmatic differentiation. On the basis of geochemical studies trachytes and phonolites are divided into two groups each; nepheline-normative trachytes (Ne-trachyte) and quartz-normative trachytes (Qtz-trachyte); low-alkali (Na2O + K2O <13.46 wt%) high silica (> 60 wt%) phonolites and high-alkali (Na2O + K2O > 15.47 wt%) low silica (<56 wt%) phonolites. Using least-squares mass balance and Rayleigh fractionation models, the Ne-trachytes can best be explained by a single differentiation trend generated by fractional crystallization of a basanite magma. An explanation for the generation of quartz-normative trachytes (Qtz-trachyte) and rhyolite can be generated by the assimilation of granitoid country rocks by mugearite magma coupled with fractional crystallization (AFC processes). Two different fractionation schemes are responsible for the production of phonolitic rocks; one that can explain the evolution of intermediate mugearite magmas to low-alkali phonolites and another from basanite to high-alkali phonolites. The modeling results indicate that the… Advisors/Committee Members: PANTER, KURT (Advisor).

Subjects/Keywords: Geology; Geochemistry; Antarctica; Crary Mountains; Mount Rees; Mount Steere; Fractional Crystallization; Assimilation Fractional Crsytallization.

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APA (6^th Edition):

CHAKRABORTY, S. (2007). THE GEOCHEMICAL EVOLUTION OF ALKALINE MAGMAS FROM THE CRARY MOUNTAINS, MARIE BYRD LAND, ANTARCTICA. (Masters Thesis). Bowling Green State University. Retrieved from http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1174187928

Chicago Manual of Style (16^th Edition):

CHAKRABORTY, SUVANKAR. “THE GEOCHEMICAL EVOLUTION OF ALKALINE MAGMAS FROM THE CRARY MOUNTAINS, MARIE BYRD LAND, ANTARCTICA.” 2007. Masters Thesis, Bowling Green State University. Accessed April 14, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1174187928.

MLA Handbook (7^th Edition):

CHAKRABORTY, SUVANKAR. “THE GEOCHEMICAL EVOLUTION OF ALKALINE MAGMAS FROM THE CRARY MOUNTAINS, MARIE BYRD LAND, ANTARCTICA.” 2007. Web. 14 Apr 2021.

Vancouver:

CHAKRABORTY S. THE GEOCHEMICAL EVOLUTION OF ALKALINE MAGMAS FROM THE CRARY MOUNTAINS, MARIE BYRD LAND, ANTARCTICA. [Internet] [Masters thesis]. Bowling Green State University; 2007. [cited 2021 Apr 14]. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1174187928.

Council of Science Editors:

CHAKRABORTY S. THE GEOCHEMICAL EVOLUTION OF ALKALINE MAGMAS FROM THE CRARY MOUNTAINS, MARIE BYRD LAND, ANTARCTICA. [Masters Thesis]. Bowling Green State University; 2007. Available from: http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1174187928

University of Gothenburg / Göteborgs Universitet

10. Hogmalm, Johan. Crystallization and Differentiation Processes in the Thin Layered Alkali Gabbroic Intrusions of the Ulvö Gabbro Complex, Central Sweden.

Degree: 2009, University of Gothenburg / Göteborgs Universitet

URL: http://hdl.handle.net/2077/21028

► Fractional crystallization of magma is a commonly invoked mechanism for chemical differentiation in systems that range from volcanoes to entire planets. However, the processes that… (more)

▼ Fractional crystallization of magma is a commonly invoked mechanism for chemical differentiation in systems that range from volcanoes to entire planets. However, the processes that control separation of crystals and liquids in natural systems remain controversial, since the dynamics of crystallizing magma chambers cannot be studied directly. Currently popular models involve strictly mechanical separation processes e.g., crystal settling and compositional convection. In this thesis, however, it is demonstrated that a disequilibrium process can result in very effective fractional crystallization. The ~1265 Ma Norra Ulvön Gabbro (NUG) is a ~300 m thick alkali gabbroic saucer-shaped sill in central Sweden that belongs to the Ulvö Gabbro Complex. The NUG is strongly differentiated, displays well developed modal layering, and has not experienced metamorphic alteration. A stratigraphic section through this intrusion has been studied in detail, including major and trace-element whole-rock analysis and in situ mineral analysis. Laser-ablation inductively coupled plasma mass spectrometry (LA ICP-MS) has been used to study a wide range of magmatic processes in this intrusion. Strong stratigraphic variations in major and compatible trace-elements in the NUG were reproduced by a thermodynamically constrained fractional crystallization model. However, in contrast to the predictions of this model, little or no stratigraphic variations of incompatible elements in minerals or whole-rock can be demonstrated. This cannot be explained by any fractional crystallization model that occurs under equilibrium conditions. A trace-element model for diffusive mass transfer between well mixed supernatant liquid and a partially crystallized boundary layer was therefore developed. This model demonstrates that diffusive exchange of compatible elements can be effective, while incompatible elements are decoupled, since the diffusive flux of these elements move in the same direction as the solidification front. In situ crystallization on the floor of the intrusion in combination with thermal convection of the supernatant liquid is likely to have resulted in large scale differentiation of this intrusion. Modal layering and erosion-related layering features indicate that convection was an important factor governing the diffusive exchange during the crystallization. The modal layering developed due to fluctuations in the vigor of thermal convection that in turn affected the cooling rate and the nucleation rate of plagioclase relative to olivine and Fe-Ti oxides.

Subjects/Keywords: layered intrusion; fractional crystallization; modal layering; in situ crystallization; Ulvö; saucer-shaped sill; post-cumulus; LA ICP-MS

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Hogmalm, J. (2009). Crystallization and Differentiation Processes in the Thin Layered Alkali Gabbroic Intrusions of the Ulvö Gabbro Complex, Central Sweden. (Thesis). University of Gothenburg / Göteborgs Universitet. Retrieved from http://hdl.handle.net/2077/21028

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Hogmalm, Johan. “Crystallization and Differentiation Processes in the Thin Layered Alkali Gabbroic Intrusions of the Ulvö Gabbro Complex, Central Sweden.” 2009. Thesis, University of Gothenburg / Göteborgs Universitet. Accessed April 14, 2021. http://hdl.handle.net/2077/21028.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Hogmalm, Johan. “Crystallization and Differentiation Processes in the Thin Layered Alkali Gabbroic Intrusions of the Ulvö Gabbro Complex, Central Sweden.” 2009. Web. 14 Apr 2021.

Vancouver:

Hogmalm J. Crystallization and Differentiation Processes in the Thin Layered Alkali Gabbroic Intrusions of the Ulvö Gabbro Complex, Central Sweden. [Internet] [Thesis]. University of Gothenburg / Göteborgs Universitet; 2009. [cited 2021 Apr 14]. Available from: http://hdl.handle.net/2077/21028.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Hogmalm J. Crystallization and Differentiation Processes in the Thin Layered Alkali Gabbroic Intrusions of the Ulvö Gabbro Complex, Central Sweden. [Thesis]. University of Gothenburg / Göteborgs Universitet; 2009. Available from: http://hdl.handle.net/2077/21028

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Georgia Tech

11. Dumont, George Pierre, Jr. The use of carbonation and fractional evaporative crystallization in the pretreatment of Hanford nuclear wastes.

Degree: MS, Chemical Engineering, 2007, Georgia Tech

URL: http://hdl.handle.net/1853/24716

► The purpose of this work was to explore the use of fractional evaporative crystallization as a technology that can be used to separate medium-curie waste… (more)

Subjects/Keywords: Hanford waste treatment; Polarized light microscopy; Fractional crystallization; Filtration and crystal washing techniques; Aluminum-based gels; Evaporative crystallization; Multi-salt crystallization; Hanford Site (Wash.); Crystallization; Separation (Technology); Evaporation

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Dumont, George Pierre, J. (2007). The use of carbonation and fractional evaporative crystallization in the pretreatment of Hanford nuclear wastes. (Masters Thesis). Georgia Tech. Retrieved from http://hdl.handle.net/1853/24716

Chicago Manual of Style (16^th Edition):

Dumont, George Pierre, Jr. “The use of carbonation and fractional evaporative crystallization in the pretreatment of Hanford nuclear wastes.” 2007. Masters Thesis, Georgia Tech. Accessed April 14, 2021. http://hdl.handle.net/1853/24716.

MLA Handbook (7^th Edition):

Dumont, George Pierre, Jr. “The use of carbonation and fractional evaporative crystallization in the pretreatment of Hanford nuclear wastes.” 2007. Web. 14 Apr 2021.

Vancouver:

Dumont, George Pierre J. The use of carbonation and fractional evaporative crystallization in the pretreatment of Hanford nuclear wastes. [Internet] [Masters thesis]. Georgia Tech; 2007. [cited 2021 Apr 14]. Available from: http://hdl.handle.net/1853/24716.

Council of Science Editors:

Dumont, George Pierre J. The use of carbonation and fractional evaporative crystallization in the pretreatment of Hanford nuclear wastes. [Masters Thesis]. Georgia Tech; 2007. Available from: http://hdl.handle.net/1853/24716

Georgia Tech

12. Nassif, Laurent. Use of evaporative fractional crystallization in the pretreatment process of multi-salt single shell tank Hanford nuclear wastes.

Degree: MS, Chemical and Biomolecular Engineering, 2007, Georgia Tech

URL: http://hdl.handle.net/1853/22706

► The purpose of the work described in this thesis was to explore the use of fractional crystallization as a technology that can be used to… (more)

Subjects/Keywords: Evaporative fractional crystallization; Crystallization; Cesium removal; Nuclear waste pretreatment; SST early and late feed; Hanford; Simulant testing; Multi-salts; Multi-solute; Crystallization; Radioactive wastes – Washington (State) – Hanford Site.; Sodium salts; Cesium

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Nassif, L. (2007). Use of evaporative fractional crystallization in the pretreatment process of multi-salt single shell tank Hanford nuclear wastes. (Masters Thesis). Georgia Tech. Retrieved from http://hdl.handle.net/1853/22706

Chicago Manual of Style (16^th Edition):

Nassif, Laurent. “Use of evaporative fractional crystallization in the pretreatment process of multi-salt single shell tank Hanford nuclear wastes.” 2007. Masters Thesis, Georgia Tech. Accessed April 14, 2021. http://hdl.handle.net/1853/22706.

MLA Handbook (7^th Edition):

Nassif, Laurent. “Use of evaporative fractional crystallization in the pretreatment process of multi-salt single shell tank Hanford nuclear wastes.” 2007. Web. 14 Apr 2021.

Vancouver:

Nassif L. Use of evaporative fractional crystallization in the pretreatment process of multi-salt single shell tank Hanford nuclear wastes. [Internet] [Masters thesis]. Georgia Tech; 2007. [cited 2021 Apr 14]. Available from: http://hdl.handle.net/1853/22706.

Council of Science Editors:

Nassif L. Use of evaporative fractional crystallization in the pretreatment process of multi-salt single shell tank Hanford nuclear wastes. [Masters Thesis]. Georgia Tech; 2007. Available from: http://hdl.handle.net/1853/22706

Georgia State University

13. Davarpanah, Armita. Magmatic Evolution of the Eocene Volcanic Rocks of the Bijgerd Kuh E Kharchin Area, Uromieh-Dokhtar Zone, Iran.

Degree: MS, Geosciences, 2009, Georgia State University

URL: https://scholarworks.gsu.edu/geosciences_theses/19

► Composition and texture of the Middle and Late Eocene volcanic, volcaniclastic, and volcanic-sedimentary rocks in the Bijgerd-Kuh e Kharchin area, in the Uromieh-Dokhtar zone northwest… (more)

Subjects/Keywords: Saveh; Iran; Uromieh-Dokhtar volcanic- plutonic zone; Eocene volcanism; Partial melting; Fractional crystallization; Magma mixing/mingling; Bijgerd-Kuh e Kharchin area; Geography; Geology

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Davarpanah, A. (2009). Magmatic Evolution of the Eocene Volcanic Rocks of the Bijgerd Kuh E Kharchin Area, Uromieh-Dokhtar Zone, Iran. (Thesis). Georgia State University. Retrieved from https://scholarworks.gsu.edu/geosciences_theses/19

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

Davarpanah, Armita. “Magmatic Evolution of the Eocene Volcanic Rocks of the Bijgerd Kuh E Kharchin Area, Uromieh-Dokhtar Zone, Iran.” 2009. Thesis, Georgia State University. Accessed April 14, 2021. https://scholarworks.gsu.edu/geosciences_theses/19.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

Davarpanah, Armita. “Magmatic Evolution of the Eocene Volcanic Rocks of the Bijgerd Kuh E Kharchin Area, Uromieh-Dokhtar Zone, Iran.” 2009. Web. 14 Apr 2021.

Vancouver:

Davarpanah A. Magmatic Evolution of the Eocene Volcanic Rocks of the Bijgerd Kuh E Kharchin Area, Uromieh-Dokhtar Zone, Iran. [Internet] [Thesis]. Georgia State University; 2009. [cited 2021 Apr 14]. Available from: https://scholarworks.gsu.edu/geosciences_theses/19.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

Davarpanah A. Magmatic Evolution of the Eocene Volcanic Rocks of the Bijgerd Kuh E Kharchin Area, Uromieh-Dokhtar Zone, Iran. [Thesis]. Georgia State University; 2009. Available from: https://scholarworks.gsu.edu/geosciences_theses/19

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

14. Boulanger, Marine. Le devenir des liquides au sein de la croûte océanique des dorsales à expansion lente : nouveaux apports de l'étude d'Atlantis Bank (dorsale Sud-Ouest Indienne) : The fate of melts within the slow-spreading lower oceanic crust : New insights from Atlantis Bank (Southwest Indian Ridge).

Degree: Docteur es, Géosciences, 2020, Université de Lorraine; Universität Hannover

URL: http://www.theses.fr/2020LORR0030

►

Les processus magmatiques qui régissent l'accrétion crustale au niveau des dorsales médio-océaniques à expansion lente restent à l'heure actuelle mal contraints. Parmi les processus potentiellement… (more)

▼

Les processus magmatiques qui régissent l'accrétion crustale au niveau des dorsales médio-océaniques à expansion lente restent à l'heure actuelle mal contraints. Parmi les processus potentiellement impliqués dans l'évolution des réservoirs de magma de la croûte inférieure, les réactions associées à des écoulements poreux réactifs au travers de bouillies cristallines - ou mush - tendent à supplanter les processus classiques de cristallisation simple des magmas. La part de ces processus dans la formation des gabbros cumulatifs de base de croûte est dépendante des modes de migration des liquides, qui sont eux-mêmes corrélés à la géométrie des réservoirs considérés. En combinant des études structurales, pétrographiques et géochimiques à haute résolution de sections in situ forées dans un corps complexe océanique de la dorsale Sud-Ouest indienne, j'ai pu apporter de nouvelles contraintes sur les modes de formation et d'évolution des réservoirs magmatiques impliqués lors de l'accrétion crustale. Le modèle de réservoir développé est généralisable, au moins en partie, à d'autres portions de croûte inférieure océanique. Ce modèle, ainsi que les nouvelles contraintes de l'étude expérimentale couplée des processus de cristallisation, ouvre la voie vers de nouvelles quantifications des processus d'interaction liquides-roches dans la différenciation des lithologies gabbroïques, et de manière plus générale dans l'évolution des liquides magmatiques de la croûte océanique. Ces développements vont de pair avec l'évolution au cours des dernières décennies de la vision des systèmes magmatiques crustaux, passant de chambres magmatiques constituées de liquides vers des modèles de réservoirs magmatiques majoritairement constitués de mush cristallins.

Magmatic processes that govern crustal accretion at mid-ocean ridges still need to be better constrained. Among the processes potentially involved in the evolution of the lower crust magma reservoirs, reactions associated with reactive porous flow through crystal mushes tend to be considered as one of the predominant processes together with simple crystallization of magmas. The share of these processes during magma differentiation is dependent on the modes of melt migration and is thus correlated to the geometry of the reservoirs considered. By combining high-resolution structural, petrographic and geochemical studies of in situ sections drilled in an oceanic core complex of the Southwest Indian Ridge, I was able to bring new constraints on the formation and evolution of magmatic reservoirs involved in crustal accretion. All or part of the igneous reservoir model developed herein can be applied to other sections of lower oceanic crust. This model, together with additional constraints obtained by the coupled experimental petrology study of crystallization processes, paves the way for new quantifications of the involvement of melt-rock reactions in the differentiation of gabbroic lithologies, and more generally in the evolution of melts within the oceanic crust. Those developments are…

Advisors/Committee Members: Pik, Raphaël (thesis director), France, Lydéric (thesis director), Koepke, Jürgen (thesis director).

Subjects/Keywords: Dorsales océaniques à expansion lente; Dorsale Sud-Ouest Indienne; Atlantis Bank; Croûte inférieure océanique; Corps complexe océanique; Intrusion magmatique; Flux poreux réactif; Assimilation-Cristallisation Fractionnée; Analyses in situ; Pétrologie expérimentale; Autoclave; Slow-spreading ridges; Southwest Indian Ridge; Atlantis Bank; Lower oceanic crust; Oceanic core complexes; Magma intrusion; Reactive porous flow; Assimilation-Fractional Crystallization; In situ analyses; Experimental petrology; Internally Heated Pressure Vessels; 552; 551.468

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Boulanger, M. (2020). Le devenir des liquides au sein de la croûte océanique des dorsales à expansion lente : nouveaux apports de l'étude d'Atlantis Bank (dorsale Sud-Ouest Indienne) : The fate of melts within the slow-spreading lower oceanic crust : New insights from Atlantis Bank (Southwest Indian Ridge). (Doctoral Dissertation). Université de Lorraine; Universität Hannover. Retrieved from http://www.theses.fr/2020LORR0030

Chicago Manual of Style (16^th Edition):

Boulanger, Marine. “Le devenir des liquides au sein de la croûte océanique des dorsales à expansion lente : nouveaux apports de l'étude d'Atlantis Bank (dorsale Sud-Ouest Indienne) : The fate of melts within the slow-spreading lower oceanic crust : New insights from Atlantis Bank (Southwest Indian Ridge).” 2020. Doctoral Dissertation, Université de Lorraine; Universität Hannover. Accessed April 14, 2021. http://www.theses.fr/2020LORR0030.

MLA Handbook (7^th Edition):

Boulanger, Marine. “Le devenir des liquides au sein de la croûte océanique des dorsales à expansion lente : nouveaux apports de l'étude d'Atlantis Bank (dorsale Sud-Ouest Indienne) : The fate of melts within the slow-spreading lower oceanic crust : New insights from Atlantis Bank (Southwest Indian Ridge).” 2020. Web. 14 Apr 2021.

Vancouver:

Boulanger M. Le devenir des liquides au sein de la croûte océanique des dorsales à expansion lente : nouveaux apports de l'étude d'Atlantis Bank (dorsale Sud-Ouest Indienne) : The fate of melts within the slow-spreading lower oceanic crust : New insights from Atlantis Bank (Southwest Indian Ridge). [Internet] [Doctoral dissertation]. Université de Lorraine; Universität Hannover; 2020. [cited 2021 Apr 14]. Available from: http://www.theses.fr/2020LORR0030.

Council of Science Editors:

Boulanger M. Le devenir des liquides au sein de la croûte océanique des dorsales à expansion lente : nouveaux apports de l'étude d'Atlantis Bank (dorsale Sud-Ouest Indienne) : The fate of melts within the slow-spreading lower oceanic crust : New insights from Atlantis Bank (Southwest Indian Ridge). [Doctoral Dissertation]. Université de Lorraine; Universität Hannover; 2020. Available from: http://www.theses.fr/2020LORR0030

Georgia Tech

15. Nassif, Laurent. Accelerating treatment of radioactive waste by evaporative fractional crystallization.

Degree: PhD, Chemical Engineering, 2009, Georgia Tech

URL: http://hdl.handle.net/1853/33868

► The purpose of the work described in this thesis was to explore the use of fractional crystallization as a technology that can be used to… (more)

▼ The purpose of the work described in this thesis was to explore the use of fractional crystallization as a technology that can be used to separate medium-curie waste from the Hanford Site tank farms into a high-curie waste stream, which can be sent to a Waste Treatment and Immobilization Plant (WTP), and a low-curie waste stream, which can be sent to Bulk Vitrification. The successful semi-batch crystallization of sodium salts from two single shell tank simulant solutions (SST Early Feed, SST Late Feed) demonstrated that the recovered crystalline product met the purity requirement for exclusion of cesium, sodium recovery in the crystalline product and the requirement on the sulfate-to-sodium molar ratio in the stream to be diverted to the WTP. The experimental apparatus, procedures and results obtained in this thesis on scaled-down experiments of SST Early and Late Feed simulated solutions were adapted and reproduced under hot-cell with actual wastes by our partners at Hanford. To prepare the application of the pretreatment process to pilot scale process, several varation to the feed solutions were investigated including the presence of carboxylates and amines organics compounds and solids particles. Results of the study showed that 4 organics species presented complications to the process (NTA, HEDTA, EDTA and sodium citrate) while the other species (Formate, acetate, glycolate and IDA) and solids particles did not in the conditions of the stored wastes. In this thesis, the kinetics of the crystalline species formed at the condition of the early feed certification run (66 °C and 25 g/h evaporation) were determined along with the effect of the operating temperature and evaporation rate on these kinetics. On one hand, the study of evaporation rate values ranging from 25g/h to 75g/h showed that an increase in evaporation rate increased the specific nucleation while decreasing the specific growth rate. On the other hand, experiments on operating temperature ranging from 35 °C to 75 °C displayed that the nucleation rate of all species increased with temperature at the exception of sodium carbonate monohydrate and burkeite crystals, and that the growth rate of all species increased with temperature at the exception of sodium nitrate. Furthermore, sulfate based crystals such as trisodium fluoride sulfate were only roduced at 45 °C and 75 °C. A simple steady state MSMPR population balance model was developed expressing the total population density function as the sum of the specific population density functions. The specific semi-batch crystallization kinetics were implemented in this model. Advisors/Committee Members: Ronald W Rousseau (Committee Chair), Amyn S Teja (Committee Member), Charles Liotta (Committee Member), matthew realff (Committee Member), Sankar Nair (Committee Member).

Subjects/Keywords: Multi-salts; Simulant testing; MSMPR; Nucleation and growth rates; Multi-solute; SST early and late feed; Crystallization; Evaporative fractional crystallization; Nuclear waste pretreatment; Cesium removal; Hanford; Radioactive waste disposal; Radioactive wastes Vitrification; Radioactive wastes Washington (State) Hanford Site; Cesium

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Nassif, L. (2009). Accelerating treatment of radioactive waste by evaporative fractional crystallization. (Doctoral Dissertation). Georgia Tech. Retrieved from http://hdl.handle.net/1853/33868

Chicago Manual of Style (16^th Edition):

Nassif, Laurent. “Accelerating treatment of radioactive waste by evaporative fractional crystallization.” 2009. Doctoral Dissertation, Georgia Tech. Accessed April 14, 2021. http://hdl.handle.net/1853/33868.

MLA Handbook (7^th Edition):

Nassif, Laurent. “Accelerating treatment of radioactive waste by evaporative fractional crystallization.” 2009. Web. 14 Apr 2021.

Vancouver:

Nassif L. Accelerating treatment of radioactive waste by evaporative fractional crystallization. [Internet] [Doctoral dissertation]. Georgia Tech; 2009. [cited 2021 Apr 14]. Available from: http://hdl.handle.net/1853/33868.

Council of Science Editors:

Nassif L. Accelerating treatment of radioactive waste by evaporative fractional crystallization. [Doctoral Dissertation]. Georgia Tech; 2009. Available from: http://hdl.handle.net/1853/33868

16. ΚΩΝΣΤΑΝΤΟΠΟΥΛΟΥ, ΓΑΡΥΦΑΛΙΑ. ΚΑΤΑΝΟΜΗ ΤΩΝ ΣΤΟΙΧΕΙΩΝ ΤΗΣ ΟΜΑΔΑΣ ΤΟΥ ΛΕΥΚΟΧΡΥΣΟΥ (PGE) ΚΑΙ ΤΟΥ ΧΡΥΣΟΥ ΣΕ ΧΡΩΜΙΤΙΚΑ ΜΕΤΑΛΛΕΥΜΑΤΑ ΚΑΙ ΠΕΤΡΩΜΑΤΑ ΤΟΥ ΟΦΙΟΛΙΘΙΚΟΥ ΣΥΜΠΛΕΓΜΑΤΟ...

Degree: 1990, Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ); National and Kapodistrian University of Athens

URL: http://hdl.handle.net/10442/hedi/1373

►

THE DISTRIBUTION OF PLATINUM GROUP ELEMENTS IN VOURINOS OPHIOLITE COMPLEX REVEALED A SIGNIFICANT VARIATION IN THE COMPOSITION OF CHROMITE ORES AND HOST ROCKS,WHICH WAS CONSIDERED… (more)

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THE DISTRIBUTION OF PLATINUM GROUP ELEMENTS IN VOURINOS OPHIOLITE COMPLEX REVEALED A SIGNIFICANT VARIATION IN THE COMPOSITION OF CHROMITE ORES AND HOST ROCKS,WHICH WAS CONSIDERED BY PREVIOUS AUTHORS TO BE VERY RESTRICTED. CHROMITE AND HOST ROCK GEOCHEMISTRY STUDY THROUGHOUT THE VOURINOS OPHIOLITE COMPLEX LED TO THE DISTINCTION OF THREE DIFFERENT GEOTECTONIC UNITS, CORRESPONDING TO NORTH VOURINOS, SOUTH VOURINOS AND KISSAVOS GEOGRAPHIC AREAS. THE ABOVE THREE UNITS ARE CHARACTERIZED BY DIFFERENT CHROMITE ORE POTENTIAL AND ORE GENESIS PROCESSES. THECHANGES IN THE DISTRIBUTION OF PGE AMONG THE THREE UNITS MAY BE EXPLAINED BY THE DEGREE OF PARTIAL MELTING OF THE PREMITIVE UPPER MANTLE AS WELL AS THE DEGREE OF FRACTIONAL CRYSTALLIZATION OF THE PARENT MAGMA. THE DISTANCE OF THE MAGMA CHAMBER FROM THE SPREADING CENTER AND THE MAGMA MIXING MECHANISM MAY PLAY AN IMPORTANT ROLE IN PGE DISTRIBUTION. THE ECONOMIC POTENTIAL OF PGE, IN OPHIOLITE COMPLEXES SEEMS LOW AT THE PRESENT TIME.

Η ΚΑΤΑΝΟΜΗ ΤΩΝ ΣΤΟΙΧΕΙΩΝ ΤΗΣ ΟΜΑΔΑΣ ΤΟΥ ΛΕΥΚΟΧΡΥΣΟΥ (PGE) ΣΤΟ ΟΦΙΟΛΙΘΙΚΟ ΣΥΜΠΛΕΓΜΑ ΤΟΥ ΒΟΥΡΙΝΟΥ, ΕΔΕΙΞΕ ΟΤΙ ΤΑ ΧΡΩΜΙΤΙΚΑ ΜΕΤΑΛΛΕΥΜΑΤΑ ΑΛΛΑ ΚΑΙ ΤΑ ΜΑΝΔΥΑΚΑ ΠΕΤΡΩΜΑΤΑ ΕΜΦΑΝΙΖΟΥΝ ΣΗΜΑΝΤΙΚΗ ΔΙΑΚΥΜΑΝΣΗ ΤΗΣ ΣΥΣΤΑΣΗΣ ΤΟΥΣ, ΠΟΛΥ ΜΕΓΑΛΥΤΕΡΗ ΑΠ'ΟΣΟ ΕΘΕΩΡΕΙΤΟ ΜΕΧΡΙ ΤΩΡΑ. ΜΕ ΒΑΣΗ ΤΗΝ ΔΙΑΚΥΜΑΝΣΗ ΤΩΝ ΠΛΑΤΙΝΟΕΙΔΩΝ ΕΓΙΝΕ ΔΥΝΑΤΗ Η ΔΙΑΚΡΙΣΗ ΤΡΙΩΝ ΕΝΟΤΗΤΩΝ ΣΤΟ ΣΥΜΠΛΕΓΜΑ ΤΟΥ ΒΟΥΡΙΝΟΥ, ΠΟΥ ΑΝΤΑΠΟΚΡΙΝΟΝΤΑΙ ΓΕΩΓΡΑΦΙΚΑ ΣΤΟ ΝΟΤΙΟ ΒΟΥΡΙΝΟ, ΤΟ ΒΟΡΕΙΟ ΒΟΥΡΙΝΟ ΚΑΙ ΤΟΝ ΚΙΣΣΑΒΟ. ΟΙ ΤΡΕΙΣ ΑΥΤΕΣ ΕΝΟΤΗΤΕΣ ΧΑΡΑΚΤΗΡΙΖΟΝΤΑΙ ΑΠΟ ΔΙΑΦΟΡΕΤΙΚΟ ΜΕΤΑΛΛΟΓΕΝΕΤΙΚΟ ΔΥΝΑΜΙΚΟ ΚΑΙ ΙΔΙΑΙΤΕΡΟΤΗΤΕΣ ΣΤΙΣ ΣΥΝΘΗΚΕΣ ΓΕΝΕΣΗΣ ΤΟΥΣ. Η ΔΙΑΦΟΡΕΤΙΚΗ ΚΑΤΑΝΟΜΗ ΤΩΝ ΠΛΑΤΙΝΟΕΙΔΩΝ ΜΕΤΑΞΥ ΤΩΝ ΤΡΙΩΝ ΕΝΟΤΗΤΩΝ ΑΠΟΔΙΔΕΤΑΙ ΚΥΡΙΑ ΣΤΟ ΒΑΘΜΟ ΜΕΡΙΚΗΣ ΤΗΞΗΣ ΤΟΥ ΠΡΩΤΟΓΕΝΟΥΣ ΑΝΩΤΕΡΟΥ ΜΑΝΔΥΑ ΚΑΙ ΤΟ ΒΑΘΜΟ ΚΛΑΣΜΑΤΙΚΗΣ ΚΡΥΣΤΑΛΛΩΣΗΣ ΤΟΥ ΜΗΤΡΙΚΟΥ ΜΑΓΜΑΤΟΣ. Η ΑΠΟΣΤΑΣΗ ΤΟΥ ΜΑΓΜΑΤΙΚΟΥ ΘΑΛΑΜΟΥ ΑΠΟ ΤΟ ΚΕΝΤΡΟ ΔΙΕΥΡΥΝΣΗΣ ΚΑΙ ΤΟ ΒΑΘΟΣ ΤΟΥ ΜΕΣΑ ΣΤΟΝ ΑΝΩΤΕΡΟ ΜΑΝΔΥΑ ΚΑΘΩΣ ΚΑΙ Η ΑΝΑΜΕΙΞΗ ΜΑΓΜΑΤΩΝ ΠΑΙΖΟΥΝ ΣΗΜΑΝΤΙΚΟ ΡΟΛΟ ΣΤΗΝ ΚΑΤΑΝΟΜΗΤΩΝ PGE. ΜΕ ΤΙΣ ΣΗΜΕΡΙΝΕΣ ΟΙΚΟΝΟΜΟΤΕΧΝΙΚΕΣ ΣΥΝΘΗΚΕΣ, Η ΔΥΝΑΤΟΤΗΤΑ ΕΚΜΕΤΑΛΛΕΥΣΗΣ ΤΩΝ PGE ΣΤΑ ΟΦΙΟΛΙΘΙΚΑ ΣΥΜΠΛΕΓΜΑΤΑ ΦΑΙΝΕΤΑΙ ΠΕΡΙΟΡΙΣΜΕΝΗ.

Subjects/Keywords: Alteration; CHROMITE, HOST ROCKS; FRACTIONAL CRYSTALLIZATION; GOLD, OPHIOLITE COMPLEX; MAGNETIC SEQUENCE, DISTRIBUTION; Partial melting; Platinum gropu elements (PGE); Platinum group minerals; VOURINOS, MANTLE SEQUENCE; ΒΟΥΡΙΝΟΣ, ΜΑΝΔΥΑΚΗ ΣΕΙΡΑ; ΕΞΑΛΟΙΩΣΗ; Κλασματική κρυστάλλωση; ΜΑΓΝΗΤΙΚΗ ΣΕΙΡΑ, ΚΑΤΑΝΟΜΗ; Μερική Τήξη; ΟΡΥΚΤΑ ΤΗΣ ΟΜΑΔΑΣ ΤΩΝ ΠΛΑΤΙΝΟΕΙΔΩΝ (PGM); ΣΤΟΙΧΕΙΑ ΤΗΣ ΟΜΑΔΑΣ ΤΟΥ ΛΕΥΚΟΧΡΥΣΟΥ (PGE); ΧΡΥΣΟΣ, ΟΦΙΟΛΙΘΙΚΟ ΣΥΜΠΛΕΓΜΑ; ΧΡΩΜΙΤΗΣ, ΠΕΡΙΒΑΛΛΟΝΤΑ ΠΕΤΡΩΜΑΤΑ

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

ΚΩΝΣΤΑΝΤΟΠΟΥΛΟΥ, �. (1990). ΚΑΤΑΝΟΜΗ ΤΩΝ ΣΤΟΙΧΕΙΩΝ ΤΗΣ ΟΜΑΔΑΣ ΤΟΥ ΛΕΥΚΟΧΡΥΣΟΥ (PGE) ΚΑΙ ΤΟΥ ΧΡΥΣΟΥ ΣΕ ΧΡΩΜΙΤΙΚΑ ΜΕΤΑΛΛΕΥΜΑΤΑ ΚΑΙ ΠΕΤΡΩΜΑΤΑ ΤΟΥ ΟΦΙΟΛΙΘΙΚΟΥ ΣΥΜΠΛΕΓΜΑΤΟ... (Thesis). Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ); National and Kapodistrian University of Athens. Retrieved from http://hdl.handle.net/10442/hedi/1373

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Chicago Manual of Style (16^th Edition):

ΚΩΝΣΤΑΝΤΟΠΟΥΛΟΥ, ΓΑΡΥΦΑΛΙΑ. “ΚΑΤΑΝΟΜΗ ΤΩΝ ΣΤΟΙΧΕΙΩΝ ΤΗΣ ΟΜΑΔΑΣ ΤΟΥ ΛΕΥΚΟΧΡΥΣΟΥ (PGE) ΚΑΙ ΤΟΥ ΧΡΥΣΟΥ ΣΕ ΧΡΩΜΙΤΙΚΑ ΜΕΤΑΛΛΕΥΜΑΤΑ ΚΑΙ ΠΕΤΡΩΜΑΤΑ ΤΟΥ ΟΦΙΟΛΙΘΙΚΟΥ ΣΥΜΠΛΕΓΜΑΤΟ...” 1990. Thesis, Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ); National and Kapodistrian University of Athens. Accessed April 14, 2021. http://hdl.handle.net/10442/hedi/1373.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

MLA Handbook (7^th Edition):

ΚΩΝΣΤΑΝΤΟΠΟΥΛΟΥ, ΓΑΡΥΦΑΛΙΑ. “ΚΑΤΑΝΟΜΗ ΤΩΝ ΣΤΟΙΧΕΙΩΝ ΤΗΣ ΟΜΑΔΑΣ ΤΟΥ ΛΕΥΚΟΧΡΥΣΟΥ (PGE) ΚΑΙ ΤΟΥ ΧΡΥΣΟΥ ΣΕ ΧΡΩΜΙΤΙΚΑ ΜΕΤΑΛΛΕΥΜΑΤΑ ΚΑΙ ΠΕΤΡΩΜΑΤΑ ΤΟΥ ΟΦΙΟΛΙΘΙΚΟΥ ΣΥΜΠΛΕΓΜΑΤΟ...” 1990. Web. 14 Apr 2021.

Vancouver:

ΚΩΝΣΤΑΝΤΟΠΟΥΛΟΥ �. ΚΑΤΑΝΟΜΗ ΤΩΝ ΣΤΟΙΧΕΙΩΝ ΤΗΣ ΟΜΑΔΑΣ ΤΟΥ ΛΕΥΚΟΧΡΥΣΟΥ (PGE) ΚΑΙ ΤΟΥ ΧΡΥΣΟΥ ΣΕ ΧΡΩΜΙΤΙΚΑ ΜΕΤΑΛΛΕΥΜΑΤΑ ΚΑΙ ΠΕΤΡΩΜΑΤΑ ΤΟΥ ΟΦΙΟΛΙΘΙΚΟΥ ΣΥΜΠΛΕΓΜΑΤΟ... [Internet] [Thesis]. Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ); National and Kapodistrian University of Athens; 1990. [cited 2021 Apr 14]. Available from: http://hdl.handle.net/10442/hedi/1373.

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

Council of Science Editors:

ΚΩΝΣΤΑΝΤΟΠΟΥΛΟΥ �. ΚΑΤΑΝΟΜΗ ΤΩΝ ΣΤΟΙΧΕΙΩΝ ΤΗΣ ΟΜΑΔΑΣ ΤΟΥ ΛΕΥΚΟΧΡΥΣΟΥ (PGE) ΚΑΙ ΤΟΥ ΧΡΥΣΟΥ ΣΕ ΧΡΩΜΙΤΙΚΑ ΜΕΤΑΛΛΕΥΜΑΤΑ ΚΑΙ ΠΕΤΡΩΜΑΤΑ ΤΟΥ ΟΦΙΟΛΙΘΙΚΟΥ ΣΥΜΠΛΕΓΜΑΤΟ... [Thesis]. Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ); National and Kapodistrian University of Athens; 1990. Available from: http://hdl.handle.net/10442/hedi/1373

Note: this citation may be lacking information needed for this citation format:
Not specified: Masters Thesis or Doctoral Dissertation

17. Luciano Galdino. CALFRAC: Programa que quantifica o processo de cristalização fracionada e sua aplicação ao estudo de soleiras da Bacia do Paraná (Estado do Paraná).

Degree: 2010, University of São Paulo

URL: http://www.teses.usp.br/teses/disponiveis/14/14132/tde-03012011-135433/

►

Foi desenvolvido um programa computacional escrito na linguagem de programação C++ denominado CALFRAC para quantificar o processo de cristalização fracionada em sistemas ígneos, utilizando para… (more)

▼

Foi desenvolvido um programa computacional escrito na linguagem de programação C++ denominado CALFRAC para quantificar o processo de cristalização fracionada em sistemas ígneos, utilizando para isso as concentrações dos elementos maiores, menores e traços. O algoritmo moderniza, torna mais eficiente e aprimora os programas publicados na literatura e possui a grande vantagem de poder calcular, automaticamente, todas as possíveis combinações de evolução das amostras envolvidas na diferenciação, além de associar aos cálculos os elementos-traço, os quais servem para confirmar os resultados sugeridos pelos ajustes dos elementos maiores e menores. O CALFRAC calcula a fração total subtraída do magma inicial e as frações referentes a cada mineral fracionado através do cálculo do balanço de massa, utilizando as concentrações de elementos maiores e menores, empregando os métodos de estimativa de máxima verossimilhança e dos multiplicadores de Lagrange para a resolução por mínimos quadrados, enquanto para os elementos-traço o programa utiliza a Equação de Rayleigh. Em ambos os casos a média dos erros percentuais relativos é usada como indicação das melhores evoluções. O programa CALFRAC foi aplicado na investigação da possibilidade de diferenciação por cristalização fracionada em amostras de soleiras de diabásio da Bacia do Paraná, que ocorrem nos municípios de Salto do Itararé, Ponta Grossa, Prudentópolis, Rebouças, Irati, Reserva e Jaguariaíva (PR), as quais foram coletadas para essa finalidade. Nas 33 amostras coletadas foram realizadas determinações de elementos maiores, menores e traços, incluindo terras raras, empregando-se os métodos de Fluorescência de Raios X e Ativação Neutrônica. Os resultados fornecidos pelo programa foram insatisfatórios, não sendo possível estabelecer um percurso de diferenciação das rochas mais primitivas para as mais diferenciadas das intrusões, devido ao fato de que provavelmente muitas das amostras analisadas representam a mistura de magmas com porções contendo acumulação de fases minerais causada pelo próprio processo de cristalização fracionada in situ.

CALFRAC is a computer program written in C++ programming language developed to quantify fractional crystallization processes in igneous systems. Major, minor and trace element concentrations are used as input for calculations. The new algorithm enhances and makes the program more efficient than those published in the literature. Besides it is capable to automatically calculating all possible rock sample combinations involving differentiation by fractional crystallization process, using in addition trace element concentrations to corroborate the results obtained by the fitting of major and minor element abundances. CALFRAC calculates the total fraction subtracted from the original magma and the percentage of each fractionated mineral by solving least-squares mass balance equations based on major and minor element concentrations. The methods of maximum likelihood estimate and Lagrange multipliers are used to solve the equations,…

Advisors/Committee Members: Leila Soares Marques, Wladimir Shukowsky, Eleonora Maria Gouvêa Vasconcellos.

Subjects/Keywords: Análise por ativação neutrônica; Cristalização fracionada; Modelagem de elementos maiores e menores; Modelagem de elementos traços; Programa computacional; Província Magmática do Paraná; Soleiras; Computer program; Fractional Crystallization; Major and minor element modeling; Neutron activation analysis; Paraná Magmatic Province; sills; Trace element modeling

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APA · Chicago · MLA · Vancouver · CSE | Export to Zotero / EndNote / Reference Manager

APA (6^th Edition):

Galdino, L. (2010). CALFRAC: Programa que quantifica o processo de cristalização fracionada e sua aplicação ao estudo de soleiras da Bacia do Paraná (Estado do Paraná). (Masters Thesis). University of São Paulo. Retrieved from http://www.teses.usp.br/teses/disponiveis/14/14132/tde-03012011-135433/

Chicago Manual of Style (16^th Edition):

Galdino, Luciano. “CALFRAC: Programa que quantifica o processo de cristalização fracionada e sua aplicação ao estudo de soleiras da Bacia do Paraná (Estado do Paraná).” 2010. Masters Thesis, University of São Paulo. Accessed April 14, 2021. http://www.teses.usp.br/teses/disponiveis/14/14132/tde-03012011-135433/.

MLA Handbook (7^th Edition):

Galdino, Luciano. “CALFRAC: Programa que quantifica o processo de cristalização fracionada e sua aplicação ao estudo de soleiras da Bacia do Paraná (Estado do Paraná).” 2010. Web. 14 Apr 2021.

Vancouver:

Galdino L. CALFRAC: Programa que quantifica o processo de cristalização fracionada e sua aplicação ao estudo de soleiras da Bacia do Paraná (Estado do Paraná). [Internet] [Masters thesis]. University of São Paulo; 2010. [cited 2021 Apr 14]. Available from: http://www.teses.usp.br/teses/disponiveis/14/14132/tde-03012011-135433/.

Council of Science Editors:

Galdino L. CALFRAC: Programa que quantifica o processo de cristalização fracionada e sua aplicação ao estudo de soleiras da Bacia do Paraná (Estado do Paraná). [Masters Thesis]. University of São Paulo; 2010. Available from: http://www.teses.usp.br/teses/disponiveis/14/14132/tde-03012011-135433/

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