RE-OS ISOTOPIC DATING AND ITS GEOLOGICAL IMPLICATION OF BAIMAZHAI CU-NI SULPHIDE DEPOSIT, YUNNAN PROVINCE, CHINA

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dc.contributor.author Shi G.Y.
dc.contributor.author Sun X.M.
dc.contributor.author Wang S.W.
dc.contributor.author Xiong D.X.
dc.contributor.author Qu W.J.
dc.contributor.author Du A.D.
dc.date.accessioned 2024-08-31T03:59:54Z
dc.date.available 2024-08-31T03:59:54Z
dc.date.issued 2006
dc.identifier https://www.elibrary.ru/item.asp?id=43334469
dc.identifier.citation Acta Petrologica Sinica, 2006, 22, 10, 2451-2456
dc.identifier.issn 1000-0569
dc.identifier.uri https://repository.geologyscience.ru/handle/123456789/44762
dc.description.abstract Re-Os isotopic age of sulfide ores from Baimazhai Cu-Ni sulphide deposit in Yunnan province was determined by using carius tube decomposing technique, acetone extracted Re and inductively coupled plasma mass spectrometry(ICP-MS). The results show that the Re-Os isochron age is 259 ± 18Ma (MSWD = 0.055), with an initial 187Os/188 Os value of 0.455 ± 0.024 and a corresponding (Os(t) of + 263. The Re/Os ratios of sulfide ores vary from 11.56 to 21.04. The data suggest that ore-forming age of the Baimazhai Cu-Ni deposit was very close to major eruption stage of the Emeishan large igneous provinces (LIPs), and the ore-forming material derived both from the mantle and the crust. The content of crust-derived Os was estimated to be ~30%.
dc.subject BAIMAZHAI CU-NI SULFIDE DEPOSIT
dc.subject CU-NI SULFIDE ORES
dc.subject GEOLOGICAL IMPLICATION
dc.subject ICP-MS
dc.subject RE-OS ISOTOPIC DATING
dc.title RE-OS ISOTOPIC DATING AND ITS GEOLOGICAL IMPLICATION OF BAIMAZHAI CU-NI SULPHIDE DEPOSIT, YUNNAN PROVINCE, CHINA
dc.type Статья


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