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Natural fluid-deposited graphite: mineralogical characteristics and mechanisms of formation

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Luque del Villar, Francisco Javier and Pasteris, Jill D. and Wopenka, Brigitte and Rodas, Magdalena and Fernández Barrenechea, José María (1998) Natural fluid-deposited graphite: mineralogical characteristics and mechanisms of formation. American journal of science, 298 . pp. 471-498. ISSN 0002-9599

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Abstract

This paper focuses on the similarities and differences between metamorphic
graphite (formed in situ from organic matter) and fluid-deposited graphite.
We discuss the formation of fluid-deposited graphite in terms of the source of
carbon, the characteristics of the C-bearing fluids (the C-O-H system), the mechanisms
of carbon mobilization, and the mechanisms of carbon precipitation. New
and existing analytical data are compiled on the physical and chemical characteristics
of fluid-deposited graphite olitained by the following techniques: optical
microscopy, differential ilierrilal analysis, thermogravimetry, X-ray diffraction, Raman
spectroscopy, and stable isotope mass spectrometry. Our discussions focus
on major, that is, volumetrically significant, worldwide concentrations of graphite


Item Type:Article
Uncontrolled Keywords:Methamorphic graphite; Raman; Fluid-deposited graphite
Subjects:Sciences > Geology > Mineralogy
ID Code:17597
Deposited On:09 Jan 2013 12:17
Last Modified:11 Dec 2018 08:47

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