The Chahe Copper Deposit—Its Age and Genesis |
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摘 要: |
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关 键 词: | 铜矿床 成矿作用 火山沉积作用 变质矿床 成矿时代 |
The Chahe copper deposit—Its age and genesis |
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Authors: | Zhang Yuxue Shao Shuxun Zhang Miaoyun |
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Institution: | (1) Institute of Geochemistry, Chinese Academy of Sciences, 550002 Cuiyang |
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Abstract: | The Chahe copper deposit occurs in the Early Proterozoic metamorphic series in the area of Chahe and its chalcopyrite yielded
a Pb−Pb isochron age of 951±36 Ma, providing evidence for copper mineralization at the early stage of the Jinning movement.
The ore-forming material came from terrestrial clastic sediments and marine volcanic eruption and the ores were deposited
in a relatively open beach environment. The Jinning movement led to folding and metamorphism of country strata, as well as
to the rebomilization and transport of copper, resulting in ore deposition in structurally weak locations. This deposit is
a volcano-sedimentary metamorphic deposit. |
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Keywords: | Chahe copper deposit ore-forming epoch volcano-sedimentary metamorphic deposit |
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