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Distinguishing High- from Low-Temperature Platinum Nuggets Through Their Trace-Element Pattern

2019; Volume: 114; Issue: 2 Linguagem: Inglês

10.5382/econgeo.2019.4627

1554-0774

Alexandre Raphael Cabral, Thomas Zack, Stephan König, Benjamin Eickmann, Rogerio Kwitko-Ribeiro, Miguel Tupinambá, Bernd Lehmann,

Laser-induced spectroscopy and plasma

Research Article| March 01, 2019 Distinguishing High- from Low-Temperature Platinum Nuggets Through Their Trace-Element Pattern Alexandre Raphael Cabral; Alexandre Raphael Cabral 1Centro de Pesquisas Professor Manoel Teixeira da Costa (CPMTC), Instituto de Geociências, Universidade Federal de Minas Gerais (UFMG), 31270-901, Belo Horizonte-MG, Brazil2Centro de Desenvolvimento da Tecnologia Nuclear (CDTN), 31270-901, Belo Horizonte-MG, Brazil †Corresponding author: e-mail, arcabral@geol.igc.ufmg.br Search for other works by this author on: GSW Google Scholar Thomas Zack; Thomas Zack 3Department of Earth Sciences, University of Gothenburg, Sweden4Department of Earth Sciences, University of Adelaide, Australia Search for other works by this author on: GSW Google Scholar Stephan König; Stephan König 5Isotope Geochemistry, Department of Geosciences, University of Tübingen, Germany Search for other works by this author on: GSW Google Scholar Benjamin Eickmann; Benjamin Eickmann 5Isotope Geochemistry, Department of Geosciences, University of Tübingen, Germany Search for other works by this author on: GSW Google Scholar Rogerio Kwitko-Ribeiro; Rogerio Kwitko-Ribeiro 6Vale S.A., Centro de Desenvolvimento Mineral (CDM), 33040-900, Santa Luzia-MG, Brazil Search for other works by this author on: GSW Google Scholar Miguel Tupinambá; Miguel Tupinambá 7Tektos-Geotectonic Research Group, Faculdade de Geologia, Universidade do Estado do Rio de Janeiro, 20550-050, Rio Janeiro-RJ, Brazil Search for other works by this author on: GSW Google Scholar Bernd Lehmann Bernd Lehmann 8Mineral Resources, Technische Universität Clausthal, Adolph-Roemer-Str. 2a, 38678 Clausthal-Zellerfeld, Germany Search for other works by this author on: GSW Google Scholar Author and Article Information Alexandre Raphael Cabral 1Centro de Pesquisas Professor Manoel Teixeira da Costa (CPMTC), Instituto de Geociências, Universidade Federal de Minas Gerais (UFMG), 31270-901, Belo Horizonte-MG, Brazil2Centro de Desenvolvimento da Tecnologia Nuclear (CDTN), 31270-901, Belo Horizonte-MG, Brazil Thomas Zack 3Department of Earth Sciences, University of Gothenburg, Sweden4Department of Earth Sciences, University of Adelaide, Australia Stephan König 5Isotope Geochemistry, Department of Geosciences, University of Tübingen, Germany Benjamin Eickmann 5Isotope Geochemistry, Department of Geosciences, University of Tübingen, Germany Rogerio Kwitko-Ribeiro 6Vale S.A., Centro de Desenvolvimento Mineral (CDM), 33040-900, Santa Luzia-MG, Brazil Miguel Tupinambá 7Tektos-Geotectonic Research Group, Faculdade de Geologia, Universidade do Estado do Rio de Janeiro, 20550-050, Rio Janeiro-RJ, Brazil Bernd Lehmann 8Mineral Resources, Technische Universität Clausthal, Adolph-Roemer-Str. 2a, 38678 Clausthal-Zellerfeld, Germany †Corresponding author: e-mail, arcabral@geol.igc.ufmg.br Publisher: Society of Economic Geologists Accepted: 18 Jan 2019 First Online: 27 Mar 2019 Online Issn: 1554-0774 Print Issn: 0361-0128 © 2019 Economic GeologyEconomic Geology Economic Geology (2019) 114 (2): 201–206. https://doi.org/10.5382/econgeo.2019.4627 Article history Accepted: 18 Jan 2019 First Online: 27 Mar 2019 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Alexandre Raphael Cabral, Thomas Zack, Stephan König, Benjamin Eickmann, Rogerio Kwitko-Ribeiro, Miguel Tupinambá, Bernd Lehmann; Distinguishing High- from Low-Temperature Platinum Nuggets Through Their Trace-Element Pattern. Economic Geology 2019;; 114 (2): 201–206. doi: https://doi.org/10.5382/econgeo.2019.4627 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyEconomic Geology Search Advanced Search Abstract High- and low-temperature platinum nuggets from two historical localities, Chocó in Colombia and Córrego Bom Sucesso in Brazil, are compared with respect to trace elements. Supergene platinum nuggets from Córrego Bom Sucesso are enriched in Se and Hg, but depleted in siderophile and chalcophile elements, and have fractionated platinum group element patterns, in comparison with magmatic platinum nuggets from Chocó. In particular, Se concentrations over ~100 μg/g Se and S/Se ratios above unity indicate Se recycling in a supergene environment with abundant organic matter. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.