Počet záznamů: 1
Multiphase formation of the Obří důl polymetallic skarn deposit, West Sudetes, Bohemian Massif: geochemistry and Re–Os dating of sulfide mineralization
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SYSNO ASEP 0489612 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Multiphase formation of the Obří důl polymetallic skarn deposit, West Sudetes, Bohemian Massif: geochemistry and Re–Os dating of sulfide mineralization Tvůrce(i) Veselovský, F. (CZ)
Ackerman, Lukáš (GLU-S) RID, SAI, ORCID
Pašava, J. (CZ)
Žák, Karel (GLU-S) SAI, RID, ORCID
Haluzová, Eva (GLU-S) RID, SAI
Creaser, R. A. (CA)
Dobeš, P. (CZ)
Erban, V. (CZ)
Tásler, R. (CZ)Zdroj.dok. Mineralium deposita. - : Springer - ISSN 0026-4598
Roč. 53, č. 5 (2018), s. 665-682Poč.str. 18 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. DE - Německo Klíč. slova Bohemian Massif ; polymetallic skarn deposit ; West Sudetes ; arsenopyrite ; Re–Os geochronology Vědní obor RIV DB - Geologie a mineralogie Obor OECD Geology CEP GA13-15390S GA ČR - Grantová agentura ČR Institucionální podpora GLU-S - RVO:67985831 UT WOS 000432209500004 EID SCOPUS 85031749350 DOI 10.1007/s00126-017-0766-0 Anotace The Obří důl Fe–Cu–As polymetallic sulfide skarn deposit is developed in a metamorphic series in the West Sudetes, Bohemian Massif. It consists of lenses of marble, calc–silicate rocks, and skarns. We studied the Gustav orebody, which is located few hundred meters away from the contact with a large, late-orogenic Variscan Krkonoše–Jizera Plutonic Complex (KJPC) emplaced into shallow crust. Mineralogical and fluid inclusion study evidence indicates that the main sulfide stage, dominated by pyrrhotite, arsenopyrite, and chalcopyrite originated from aqueous hydrothermal fluids with salinity up to 8 wt% NaCl eq. with minimum homogenization temperatures ranging from 324 to 358 °C. These fluids mainly replaced carbonate-rich lithologies. Carbon, oxygen, and strontium isotope data in Ca-rich rocks imply total overprinting by channelized metasomatic fluid flow, which is most probably related to the intrusion of the KJPC, whereas δ34S values of sulfides argue for a magmatic source of sulfur. The Re–Os age of arsenopyrite overlaps published age data for the KJPC and suggests synchronous formation of the main sulfide mineralization and pluton emplacement. Pracoviště Geologický ústav Kontakt Jana Popelková, popelkova@gli.cas.cz, Sabina Janíčková, Tel.: 233 087 272 Rok sběru 2019
Počet záznamů: 1