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Raman spectra of reduced carbonaceous matter as a tool for determining the provenance of marbles: examples of ‘graphitic’ marbles from Czech quarries

By
Aneta Šťastná
Aneta Šťastná
Institute of Geochemistry, Mineralogy and Mineral Resources, Charles University in Prague, Faculty of Science, Albertov 6, 128 43 Praha 2, Czech Republic
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Jan Jehlička
Jan Jehlička
Institute of Geochemistry, Mineralogy and Mineral Resources, Charles University in Prague, Faculty of Science, Albertov 6, 128 43 Praha 2, Czech Republic
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Richard Přikryl
Richard Přikryl
Institute of Geochemistry, Mineralogy and Mineral Resources, Charles University in Prague, Faculty of Science, Albertov 6, 128 43 Praha 2, Czech Republic
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Published:
January 01, 2010

Abstract

This study reports the Raman data for reduced carbonaceous matter (CM) in crystalline marbles, related to a determination of their provenance. Raman microspectrometry was tested on ‘graphitic’ marbles formed under different metamorphic conditions (regional v. contact) with various geological ages, and with distinct types of CM from the Bohemian Massif (Czech Republic). First, various modes of occurrence of CM were examined by optical microscopy (OM). The Raman results exhibited spectral variations of CM with different metamorphic grades and types. Several marble groups could be distinguished: (1) well-ordered CM/graphite of higher grade regional metamorphosed marbles; less graphitized metamorphosed organic matter (‘disordered’ CM); (2) low-grade regional metamorphosed rocks, and (3) contact metamorphosed marbles.

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Contents

Geological Society, London, Special Publications

Natural Stone Resources for Historical Monuments

R Přikryl
R Přikryl
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Á Török
Á Török
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Geological Society of London
Volume
333
ISBN electronic:
9781862395817
Publication date:
January 01, 2010

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