globalchange  > 影响、适应和脆弱性
DOI: 10.1007/s00531-014-1120-8
Scopus记录号: 2-s2.0-84925481993
论文题名:
Fluid-inclusion microthermometry and the Zr-in-rutile thermometer for hydrothermal rutile
作者: Cabral A.R.; Rios F.J.; de Oliveira L.A.R.; de Abreu F.R.; Lehmann B.; Zack T.; Laufek F.
刊名: International Journal of Earth Sciences
ISSN: 14373254
出版年: 2014
卷: 104, 期:2
起始页码: 513
结束页码: 519
语种: 英语
英文关键词: Diamantina ; Fluid-inclusion microthermometry ; Hydrothermal rutile ; Mil Oitavas gold deposit ; Minas Gerais ; Zr-in-rutile thermometer
英文摘要: 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 (10–12 wt% NaCl equivalent), aqueous–carbonic fluids with a total homogenization temperature of ~250 °C, which were likely trapped at about 300 °C and 2.0 kbar. 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. © 2014, Springer-Verlag Berlin Heidelberg.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84925481993&doi=10.1007%2fs00531-014-1120-8&partnerID=40&md5=08376ff11b72806e7206660b0bdff966
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/70449
Appears in Collections:影响、适应和脆弱性
气候减缓与适应

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作者单位: Mineral Deposits, Technische Universität Clausthal, Adolph-Roemer-Str. 2A, Clausthal-Zellerfeld, Germany; Fluid-Inclusion Laboratory, Department of Mineral Technology and Geology (SETEM), Centro de Desenvolvimento da Tecnologia Nuclear, CDTN/CNEN, Caixa Postal 941, Belo Horizonte-MG, Brazil; Instituto de Geociências, Universidade Federal de Minas Gerais (UFMG), Avenida Presidente Antônio Carlos 6627, Belo Horizonte-MG, Brazil; Coffey Consultoria e Serviços Ltda., Av. Afonso Pena, 1500, 5° andar, Belo Horizonte-MG, Brazil; Department of Earth Sciences, University of Gothenburg, Box 460, Gothenburg, Sweden; Czech Geological Survey, Geologická 6, Prague 5, Czech Republic

Recommended Citation:
Cabral A.R.,Rios F.J.,de Oliveira L.A.R.,et al. Fluid-inclusion microthermometry and the Zr-in-rutile thermometer for hydrothermal rutile[J]. International Journal of Earth Sciences,2014-01-01,104(2)
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