caa a22 4500 60615020X CHVBK 20210128100537.0 cr unu---uuuuu 210128e20150301xx s 000 0 eng 10.1007/s00531-014-1120-8 doi (NATIONALLICENCE)springer-10.1007/s00531-014-1120-8 Fluid-inclusion microthermometry and the Zr-in-rutile thermometer for hydrothermal rutile [Elektronische Daten] [Alexandre Cabral, Francisco Rios, Lucilia de Oliveira, Francisco de Abreu, Bernd Lehmann, Thomas Zack, František Laufek] The Zr-in-rutile thermometer is well established for the determination of metamorphic temperatures, particularly in high-grade metamorphic terrains, and for sedimentary provenance studies. The robustness of the rutile thermometry has not been tested on hydrothermal systems. Unlike quartz, a common hydrothermal mineral with abundant fluid inclusions, it is difficult to find fluid inclusions in rutile that are suitable for fluid-inclusion microthermometry. Here, we report fluid-inclusion microthermometric measurements in rutile from the auriferous quartz-kaolinite-hematite vein that typifies the gold deposit of Mil Oitavas in the southern Serra do Espinhaço, Minas Gerais, Brazil. Primary fluid inclusions in the rutile record moderately saline (10-12wt% NaCl equivalent), aqueous-carbonic fluids with a total homogenization temperature of ~250°C, which were likely trapped at about 300°C and 2.0kbar. This temperature is approximately 200°C lower than that predicted by the Zr-in-rutile thermometer. For hydrothermal conditions of relatively low temperature, direct measurements of homogenization temperatures in rutile-hosted fluid inclusions should be preferred to the Zr-in-rutile thermometer. Springer-Verlag Berlin Heidelberg, 2014 Hydrothermal rutile nationallicence Fluid-inclusion microthermometry nationallicence Zr-in-rutile thermometer nationallicence Mil Oitavas gold deposit nationallicence Diamantina nationallicence Minas Gerais nationallicence Cabral Alexandre Mineral Deposits, Technische Universität Clausthal, Adolph-Roemer-Str. 2A, 38678, Clausthal-Zellerfeld, Germany aut Rios Francisco Fluid-Inclusion Laboratory, Department of Mineral Technology and Geology (SETEM), Centro de Desenvolvimento da Tecnologia Nuclear, CDTN/CNEN, Caixa Postal 941, 30123-970, Belo Horizonte-MG, Brazil aut de Oliveira Lucilia Fluid-Inclusion Laboratory, Department of Mineral Technology and Geology (SETEM), Centro de Desenvolvimento da Tecnologia Nuclear, CDTN/CNEN, Caixa Postal 941, 30123-970, Belo Horizonte-MG, Brazil aut de Abreu Francisco Coffey Consultoria e Serviços Ltda., Av. Afonso Pena, 1500, 5° andar, 30130-008, Belo Horizonte-MG, Brazil aut Lehmann Bernd Mineral Deposits, Technische Universität Clausthal, Adolph-Roemer-Str. 2A, 38678, Clausthal-Zellerfeld, Germany aut Zack Thomas Department of Earth Sciences, University of Gothenburg, Box 460, 40530, Gothenburg, Sweden aut Laufek František Czech Geological Survey, Geologická 6, 152 00, Prague 5, Czech Republic aut International Journal of Earth Sciences Springer Berlin Heidelberg 104/2(2015-03-01), 513-519 1437-3254 104:2<513 2015 104 531 https://doi.org/10.1007/s00531-014-1120-8 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 brief-communication jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00531-014-1120-8 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Cabral Alexandre Mineral Deposits, Technische Universität Clausthal, Adolph-Roemer-Str. 2A, 38678, Clausthal-Zellerfeld, Germany aut NATIONALLICENCE 700 1- Rios Francisco Fluid-Inclusion Laboratory, Department of Mineral Technology and Geology (SETEM), Centro de Desenvolvimento da Tecnologia Nuclear, CDTN/CNEN, Caixa Postal 941, 30123-970, Belo Horizonte-MG, Brazil aut NATIONALLICENCE 700 1- de Oliveira Lucilia Fluid-Inclusion Laboratory, Department of Mineral Technology and Geology (SETEM), Centro de Desenvolvimento da Tecnologia Nuclear, CDTN/CNEN, Caixa Postal 941, 30123-970, Belo Horizonte-MG, Brazil aut NATIONALLICENCE 700 1- de Abreu Francisco Coffey Consultoria e Serviços Ltda., Av. Afonso Pena, 1500, 5° andar, 30130-008, Belo Horizonte-MG, Brazil aut NATIONALLICENCE 700 1- Lehmann Bernd Mineral Deposits, Technische Universität Clausthal, Adolph-Roemer-Str. 2A, 38678, Clausthal-Zellerfeld, Germany aut NATIONALLICENCE 700 1- Zack Thomas Department of Earth Sciences, University of Gothenburg, Box 460, 40530, Gothenburg, Sweden aut NATIONALLICENCE 700 1- Laufek František Czech Geological Survey, Geologická 6, 152 00, Prague 5, Czech Republic aut NATIONALLICENCE 773 0- International Journal of Earth Sciences Springer Berlin Heidelberg 104/2(2015-03-01), 513-519 1437-3254 104:2<513 2015 104 531