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PGE in ultramafic rocks of the hidden ophiolite complex near Svitavy, Bohemian Massif
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SYSNO ASEP 0089886 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title PGE in ultramafic rocks of the hidden ophiolite complex near Svitavy, Bohemian Massif Title Platinové kovy v ultramafických horninách skrytého ofiolitového komplexu u Svitav, Český masiv Author(s) Pašava, J. (CZ)
Vymazalová, A. (CZ)
Knésl, I. (CZ)
Ackerman, Lukáš (GLU-S) RID, SAI, ORCIDSource Title 9th Biennial Meeting of the Society for Geology Applied to Mineral Deposits. - Dublin : Irish Association for Economic Geology, 2007 / Andrew C. J. Pages s. 1591-1594 Number of pages 4 s. Action Biennial Meeting of the Society for Geology Applied to Mineral Deposits /9./ Event date 20.08.2007-23.08.2007 VEvent location Dublin Country IE - Ireland Event type WRD Language eng - English Country IE - Ireland Keywords PGE ; ultramafic rocks ; Svitavy (Czech Republic) Subject RIV DD - Geochemistry R&D Projects KJB300130612 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z30130516 - GLU-S (2005-2011) Annotation Anomalous concentrations of platinum-group elements (PGE) Pd – up to 281 ppb, Pt – up to 110 ppb, Ir – up to 7.4 ppb, Ru – up to 19.8 ppb, Rh –up to 8.4 ppb and Au (up to 18.5 ppb) have been detected in low Ni-Cu (Cr) mineralized pyroxenite and serpentinite recovered from the HSV-1 structural borehole at Svitavy. Based on geological and geotectonic position and geochemi-cal data these rocks hidden under Cretaceous sediments represent most likely continuation of the Letovice ophiolite complex. Maximum Ni, Cu and Cr values reach 0.67, 0.11 and 0.35 wt.%, re-spectively and abundant spinels (Cr-spinel, magnesiochromite, chromite) and magnetite with minor sulfides (millerite and chalcopyrite) were identified as major ore bearing minerals in the most rich-est PGE sample. No discrete PGE phases were identified. Workplace Institute of Geology Contact Jana Popelková, popelkova@gli.cas.cz, Sabina Janíčková, Tel.: 233 087 272 Year of Publishing 2008
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