Добірка наукової літератури з теми "Chlorite geothermometry"
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Статті в журналах з теми "Chlorite geothermometry"
Walker, Jeffrey R. "Chlorite Polytype Geothermometry." Clays and Clay Minerals 41, no. 2 (1993): 260–67. http://dx.doi.org/10.1346/ccmn.1993.0410212.
Повний текст джерелаde Caritat, Patrice. "Chlorite Geothermometry: A Review." Clays and Clay Minerals 41, no. 2 (1993): 219–39. http://dx.doi.org/10.1346/ccmn.1993.0410210.
Повний текст джерелаBourdelle, Franck. "Low-Temperature Chlorite Geothermometry and Related Recent Analytical Advances: A Review." Minerals 11, no. 2 (January 28, 2021): 130. http://dx.doi.org/10.3390/min11020130.
Повний текст джерелаLópez-Munguira, A., F. Nieto, and D. Morata. "Chlorite composition and geothermometry: a comparative HRTEM/AEM-EMPA-XRD study of Cambrian basic lavas from the Ossa Morena Zone, SW Spain." Clay Minerals 37, no. 2 (June 2002): 267–81. http://dx.doi.org/10.1180/0009855023720033.
Повний текст джерелаPERRAKI, M., and E. MPOSKOS. "New constraints for the alpine HP metamorphism of the Ios basement, Cyclades, Greece." Bulletin of the Geological Society of Greece 34, no. 3 (January 1, 2001): 977. http://dx.doi.org/10.12681/bgsg.17130.
Повний текст джерелаSüssenberger, Annette, Susanne Theodora Schmidt, Florian H. Schmidt, and Manuel F. G. Weinkauf. "Reaction progress of clay minerals and carbonaceous matter in a contact metamorphic aureole (Torres del Paine intrusion, Chile)." European Journal of Mineralogy 32, no. 6 (December 9, 2020): 653–71. http://dx.doi.org/10.5194/ejm-32-653-2020.
Повний текст джерелаJiang, Wei-Teh. "Chlorite Geothermometry?—Contamination and Apparent Octahedral Vacancies." Clays and Clay Minerals 42, no. 5 (1994): 593–605. http://dx.doi.org/10.1346/ccmn.1994.0420512.
Повний текст джерелаEsteban, J. J., J. Cuevas, and J. M. Tubía. "Geochemistry and origin of zircon in chlorite schists of the Ronda peridotites (Betic Cordilleras, southern Spain)." Lithosphere 11, no. 6 (November 4, 2019): 855–67. http://dx.doi.org/10.1130/l1088.1.
Повний текст джерелаPires, F. R. M., and L. C. Bertolino. "Estudo do metamorfismo nas formações proterozóicas no quadrilátero Ferrífero, MG." Anuário do Instituto de Geociências 14 (December 1, 1991): 1–9. http://dx.doi.org/10.11137/1991_0_1-9.
Повний текст джерелаMaison, Tatiana, Sébastien Potel, Pierre Malié, Rafael Ferreiro Mählmann, Frank Chanier, Geoffroy Mahieux, and Julien Bailleul. "Low-grade evolution of clay minerals and organic matter in fault zones of the Hikurangi prism (New Zealand)." Clay Minerals 53, no. 4 (December 2018): 579–602. http://dx.doi.org/10.1180/clm.2018.46.
Повний текст джерелаДисертації з теми "Chlorite geothermometry"
Beauchamps, Gildas. "Caractérisation d’un paléo-système géothermal de haute température exhumé, par étude des minéraux argileux et géothermométrie sur quartz et chlorite (Terre-de-Haut, archipel des Saintes, Guadeloupe)." Thesis, Cergy-Pontoise, 2019. http://www.theses.fr/2019CERG1043.
Повний текст джерелаDue to its geodynamic location on the Lesser Antilles arc, Basse-Terre of Guadeloupe displays an active volcanism which is favorable to the development of geothermal energy associated to power generation. Thus, thirty years ago, the Bouillante geothermal field was brought into production and now produces 15 MWe (Bouchot et al., 2010).The Geotref program (a multidisciplinary platform for innovation and demonstration activities for the exploration and development of high geothermal energy in fractured reservoirs) funded by ADEME in the frame of “Les Investissements d’Avenir” program, aims to investigate the high enthalpy geothermal potential in the Vieux-Habitants area, located south of Bouillante. However, because of recent volcano-clastic deposits, surfaces showing the presence of a geothermal reservoir are rare. Terre-de-Haut island (Les Saintes archipelago) is considered as an exhumed analog of the deep geothermal system of Bouillante (Verati et al., 2016) which represents a key area to study the paleo-hydrothermal alterations. To characterize the paleo-hydrothermal alterations in terms of composition and temperature, and to determine the mineralogical and petrographic features of the paleo-hydrothermal alterations, we propose to couple petrographic, crystallographic, geochemical and geothermometric approaches, i.e. X-ray diffraction (XRD), microprobe analysis (EMPA), chlorite thermometry and in-quartz fluid inclusion study (FI) on selected samples. A link is also established with the petrophysical properties of the altered.The clay minerals display a specific concentric distribution at the scale of the island, with chlorite crystallization in the core, smectite in the surroundings, and illite in an intermediate halo. Considering the data obtained in boreholes in Bouillante, which show that illite and chlorite are in the deeper parts, chlorite being located in the heart of the geothermal reservoir (Bouchot et al., 2010), the clay distribution allows to identify the temperature profile. Hence, thanks to the exhumation, we are looking to a horizontal section through the paleo-system of Terre-de-Haut, where we observe a lateral temperature gradient.Chlorite geothermometry, based on a model specifically developed for low temperature contexts (T < 350°C) and pressures below 4 kbar (Bourdelle et al., 2013), has been applied on chlorites from both Terre-de-Haut paleo-system and from the active geothermal system of Bouillante. The results show a strong difference between the temperature estimates for chlorite formation on Terre-de-Haut (around 120°C) and for Bouillante (around 230°C, in agreement with the temperature measured in boreholes in Bouillante; Mas et al., 2006).Fluid inclusions microthermometry on quartz show two growth stages recorded in the crystal core and clear overgrowths. Data indicate very low salinity (≤ 2% NaCl), and a minimum trapping temperature of around 250-280°C in inclusions located in the core, and around 70°C or less in the outer growth zones. These two events can be interpreted as a record of the fluid cooling during system evolution. Moreover, fluid inclusions from a second quartz sample indicate a shallow CO2 paleo-circulation episode.This study shows that the clay mineral zonation cropping out in Terre-de-Haut is similar to that found by drilling in the active system of Bouillante. However, the temperatures of formation of some newly formed minerals (especially chlorite) indicate that some alteration episodes occurs at lower temperature than the fluid circulation occurring in Bouillante’s active geothermal system and could represent the end of life of the Terre-de-Haut geothermal system.Hence, these results show that clay minerals study and geothermometry of newly formed minerals (chlorite and quartz) are key steps to provide new thermal constrains on the paleo-geothermal reservoir of Terre-de-Haut and its evolution, particularly the end of life of the geothermal system
Silcock, D. R. "Mineralogy, petrography and stratigraphic analysis of gold-hosting units, Oberon prospect, Tanami Region, N.T." Thesis, 2011. http://hdl.handle.net/2440/97928.
Повний текст джерелаThe newly-discovered Oberon gold deposit, Tanami Goldfields, represents a Paleoproterozoic mesothermal orogenic gold deposit hosted in the Tanami Group. Recent drilling has intersected extensive mineralised zones at various positions within the lower stratigraphy. Studying drillhole TID0065 using a number of different techniques, the project set out to understand the lithostratigraphy of the sequence and its relationship with gold mineralisation, constraints on depositional environments and associated hydrothermal alteration, along with correlations to other deposits in the region. The sequence consists of a dolomitic mudstone, grading up into a phyllite, with a siltstone protolith. This meta-sandstone represents the main host for gold mineralisation and is similar to that seen in the Coyote deposit. Conformably overlying this unit is a rapidly-deposited well-defined turbidite sequence. Gold is also hosted in the overlying Boudin Chert unit, a graphitic, pyrite rich rock that has hosts distinctive diagenetic boudin structures. The Boudin Chert represents a transition into an anoxic sediment-starved environment. Increased clastic input along with a drop in sea level further defines the rest of the sequence, with a siltstone, mudstone and sandstone package and intercalated volcaniclastics and ignimbrites noted in the upper part of the drillhole extending into the Killi Killi Formation. Mineralisation is predominantly stratabound but thrust stacking provides a secondary control to the gold distribution pattern. Gold mineralisation is associated with Na-enrichment and K-depletion; albite is the dominant feldspar in the gold-hosting assemblage. This demonstrates a possible sodic metasomatism of an alkali assemblage. The wide variation in chlorite composition, expressed as varying proportions of chamosite and clinochlore end-members between lithologies, is suggestive of multiple fluid phases and/or alteration events, including possible „seafloor metamorphism‟ prior to hydrothermal activity. Primary alteration in the deposit is represented by an earlier chlorite-sericite assemblage and a later stage calcite-dolomite alteration in certain lithologies at the base of the sequence. Using chlorite thermometry, peak metamorphic temperatures were calculated to be at 366 ± 21 °C (i.e. greenschist facies); conditions reach amphibolite grade less than a kilometre away. Electron probe microanalysis suggests the mineralising fluids were volatile-rich, as demonstrated by the high F content of biotite and apatite. Future exploration potential for deposits of this type should focus on identification of Fe-enriched turbiditic sequences, chlorite-albite-muscovite assemblages and the presence of arsenopyrite. Graphitic oxygen-deprived beds enriched in a range of trace elements with strong pyrite alteration are also good indicators of gold mineralisation.
Thesis (B.Sc.(Hons)) -- University of Adelaide, School of Earth and Environmental Sciences, 2011
Частини книг з теми "Chlorite geothermometry"
Mas, G. R., L. Bengochea, and L. C. Mas. "Chlorite-smectite geothermometry of two wells from the Copahue geothermal field, Argentina." In 2001. A Clay Odyssey, 131–38. Elsevier, 2003. http://dx.doi.org/10.1016/b978-044450945-1/50106-8.
Повний текст джерелаТези доповідей конференцій з теми "Chlorite geothermometry"
Helms, Ryan Joseph. "Biotite and Chlorite Geothermometry of the Lomas Bayas Porphyry Copper Deposit in Northern Chilé." In 2019 New Mexico Geological Society Annual Spring Meeting. Socorro, NM: New Mexico Geological Society, 2019. http://dx.doi.org/10.56577/sm-2019.1494.
Повний текст джерелаChaumba, Jeff B. "EVOLUTION OF THE RUSSELL LAKE ALLOCHTHON AND THE SOAPSTONE RIDGE COMPLEX IN GEORGIA, SOUTHERN APPALACHIANS: INFERENCES FROM CHLORITE GEOTHERMOMETRY." In 68th Annual GSA Southeastern Section Meeting - 2019. Geological Society of America, 2019. http://dx.doi.org/10.1130/abs/2019se-326008.
Повний текст джерела