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Laser ablation ICPMS study of trace element chemistry in molybdenite coupled with scanning electron microscopy (SEM) - An important tool for identification of different types of mineralization
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SYSNO ASEP 0460127 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Laser ablation ICPMS study of trace element chemistry in molybdenite coupled with scanning electron microscopy (SEM) - An important tool for identification of different types of mineralization Author(s) Pašava, J. (CZ)
Svojtka, Martin (GLU-S) SAI, RID, ORCID
Veselovský, F. (CZ)
Ďurišová, Jana (GLU-S) RID, SAI
Ackerman, Lukáš (GLU-S) RID, SAI, ORCID
Pour, O. (CZ)
Drábek, M. (CZ)
Halodová, P. (CZ)
Haluzová, Eva (GLU-S) RID, SAISource Title Ore Geology Reviews. - : Elsevier - ISSN 0169-1368
Roč. 72, č. 1 (2016), s. 874-895Number of pages 22 s. Publication form Print - P Language eng - English Country NL - Netherlands Keywords molybdenite ; trace-element geochemistry ; Laser Ablation Inductively Coupled Mass ; spectrometry ; scanning electron microscopy ; nano- to micro-inclusions ; Bohemian Massif ; Uzbekistan Subject RIV DB - Geology ; Mineralogy R&D Projects GA13-15390S GA ČR - Czech Science Foundation (CSF) Institutional support GLU-S - RVO:67985831 UT WOS 000366345100050 EID SCOPUS 84942749627 DOI 10.1016/j.oregeorev.2015.09.007 Annotation Using the example of four different types of associations from the Bohemian Massif (greisen-, gold-, base metal-, and "barren granite"-related) and of one porphyry-Cu-Mo(Au) deposit from Uzbekistan, it is shown that molybdenite from a specific type of mineralization possesses a distinct trace-element geochemical composition, which is locally influenced by the presence of relevant mineral phases occurring in the form of sub-nano-, nano-to micron-scale impurities/inclusions. It is documented that, besides typically lattice-bound elements (Re, and W) and isostructural concentrations of Se and Te (substituting for S), molybdenite can concentrate other metals (e.g., Ag, As, Au, Bi, Cu, Nb, Pb, Zn, Zr) which mostly form inclusions or impurities. The distribution of Re in molybdenite indicates crustal sources for the group of greisen-, base-metal-, and a few of the granite-related deposits, compared to a mixed mantle/crustal source for the Au-related and majority of granite-related deposits. Molybdenite from the Kalmakyr porphyry-Cu-Mo (Au) deposit in Uzbekistan is characterized by the highest mean Re value (236 ppm). Rhenium, Se and W have a homogeneous distribution in molybdenite from this deposit. Only galena and anglesite inclusions were identified visually in molybdenite from this type of deposit, while the presence of most likely sub-nano impurities of Cu, Zn and Ag is indicated by LA-ICPMS time-resolved depth profiles. Workplace Institute of Geology Contact Jana Popelková, popelkova@gli.cas.cz, Sabina Janíčková, Tel.: 233 087 272 Year of Publishing 2017
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