Contrasting distribution of trace elements between representative antimony deposits in southern China

Murao, Satoshi; Sie, S.H.; Hu, X; Suter, G.F.

doi:10.1016/s0168-583x(98)00947-1

Cited by 12 publications

(1 citation statement)

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“…Precisely determining the age of Sb deposits can help to understand their origin and further prospecting ( Scratch et al, 1984 ; Maheux, 1989 ; Lu, 1994 ; Wang, 2008 ; Tran et al., 2016 ; Xie et al., 2017 ). However, dating is a challenging work because of low radioisotope contents in their minerals (stibnite, carbonates, and quartz ± fluorite) ( Gumiel and Arribas, 1987 ; Wu, 1993 ; Murao et al., 1999 ; Shen et al., 2011 , 2013 ). Although there are some successful examples of calcite/fluorite Sm-Nd dating (e.g.…”

Section: Introductionmentioning

confidence: 99%

In situ U-Pb Dating of Calcite from the South China Antimony Metallogenic Belt

et al. 2020

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Summary Accurately determining the age of hydrothermal ore deposits is difficult, because of lack of suitable mineral chronometers and techniques. Here we present the first LA-MC-ICPMS U-Pb age of carbonates from hydrothermal Sb deposits. Three stages of hydrothermal carbonates from the giant South China Sb metallogenic belt were identified: (1) pre-ore dolomite (Dol-I), (2) syn-ore calcite (Cal-II), and (3) post-ore calcite (Cal-III). The U and Pb isotopic data show that Cal-II yielded a lower intercept age of 115.3 ± 1.5 Ma (MSWD = 2.0), suggesting a Sb mineralization that corresponds to an extension event occurred during the early Cretaceous in South China. Although Cal-III yielded an age of 60.0 ± 0.9 Ma (MSWD = 1.5), indicating a potential tectonothermal event occurred in this belt during the early Cenozoic. Hence, in situ U-Pb dating of calcite offers a new way to determine the age of hydrothermal ore deposits.

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