RHENIUM DISTRIBUTION IN MOLYBDENITE FROM THE VOSNESENSK PORPHYRY Cu (Mo,Au) DEPOSIT (SOUTHERN URALS, RUSSIA)

Autor:	A. I. Grabezhev, Panagiotis Voudouris
Rok vydání:	2014
Předmět:	Mineralization (geology) Pumpellyite chemistry Geochemistry and Petrology Molybdenite Geochemistry chemistry.chemical_element Mineralogy Tobermorite Electron microprobe Rhenium Geology
Zdroj:	The Canadian Mineralogist. 52:671-686
ISSN:	1499-1276 0008-4476
DOI:	10.3749/canmin.1300048
Popis:	Molybdenite from the Voznesensk porphyry Cu ± (Mo,Au) deposit, southern Urals, Russia, displays high Re content and a well-documented oscillatory zoning for this mineral. The molybdenite forms part of a quartz-molybdenite-pyrite-chalcopyrite assemblage cemented at low-temperatures by pumpellyite and tobermorite. Oscillatory zoning occurs as micro-bands up to 200 μm wide and 200–600 μm long oriented parallel to the basal cleavage, as well as within basal planes of molybdenite sheets. The micro-bands are Re-enriched to different degrees (0.3–1.0 wt.%, typically they contain 0.6–0.8 wt.% Re). Outside these structures the Re content in molybdenite is up to 0.25 wt.%, usually
Databáze:	OpenAIRE
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