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Graphite deposits of the Southern Bohemia (Moldanubian Zone, Czech Republic): their origin, metamorphic evolution and economic significance
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SYSNO ASEP 0569111 Document Type C - Proceedings Paper (int. conf.) R&D Document Type The record was not marked in the RIV Title Graphite deposits of the Southern Bohemia (Moldanubian Zone, Czech Republic): their origin, metamorphic evolution and economic significance Author(s) Poňavič, M. (CZ)
Vymazalová, A. (CZ)
Kříbek, B. (CZ)
Knésl, I. (CZ)
Pticen, F. (CZ)
Hladíková, J. (CZ)
Sýkorová, Ivana (USMH-B) RID, ORCID
Machovič, V. (CZ)
Čížek, J. (CZ)Source Title The critical role of minerals in the carbon-neutral future. Proceedings of the 16th SGA Biennial Meeting, 28-31 March 2022, Introduction and papers, 1. - Rotorua : Society for geology applied to mineral deposits, 2022 / Christie A.B. Pages s. 329-332 Number of pages 4 s. Publication form Online - E Action SGA Biennial Meeting /16./ Event date 28.03.2022 - 31.03.2022 VEvent location Rotorua Country NZ - New Zealand Event type WRD Language eng - English Country NZ - New Zealand Keywords graphite ; morphology ; reflectance ; Raman spectra ; origin ; metamorphic evolution ; South Bohemia Subject RIV DD - Geochemistry OECD category Geology R&D Projects SS02030023 GA TA ČR - Technology Agency of the Czech Republic (TA ČR) Institutional support USMH-B - RVO:67985891 Annotation Based on the study of morphology, reflectance and micro-Raman spectroscopy of the graphite ore, three types of graphite flakes were distinguished, the shape and size of which are determined by their origin in prograde metamorphic processes, intensity of ductile and brittle deformations and retrograde recrystallization. The extreme lithological diversity of the unit, which is characterized by alternating
individual rock types in the order of cm to dm, and the presence of volcanic admixture in sediments, suggests that the deposition of organic protolite of graphite took place in a shallow water environment during synchronous volcanic activity. Abundant occurrence of Cl-scapolite in calc-silicate rocks and marbles indicate elevated salinity of the marine environment.Workplace Institute of Rock Structure and Mechanics Contact Iva Švihálková, svihalkova@irsm.cas.cz, Tel.: 266 009 216 Year of Publishing 2023
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