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Chinese Journal of Geochemistry

, Volume 14, Issue 2, pp 128–133 | Cite as

The Chahe copper deposit—Its age and genesis

  • Zhang Yuxue
  • Shao Shuxun
  • Zhang Miaoyun
Article
  • 27 Downloads

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.

Key words

Chahe copper deposit ore-forming epoch volcano-sedimentary metamorphic deposit 

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References

  1. Duan Jingsun, 1987, Geological explanation of the isotopic ages of the Precambrian of Yunnan Province—A preliminary discussion: Geology of Yunnan Province, v. 6, n. 2, p. 179–187 (in Chinese)Google Scholar
  2. Ran Chongying, 1989, The mineralogenic mechanism of strata-bound deposits at the Kangdian earth’s axis: Beijing Geology Press, p. 1–6 (in Chinese)Google Scholar
  3. Sun Yan and Li Chende, 1990, A study on the mineralogenic mechanism of the Lala copper deposit in Sichuan Province: Bulletin of Chengdu Institute of Technology, v. 17, n. 4, p. 1–9(in Chinese).Google Scholar
  4. Tu Guangchi et al., 1984, Geochemistry of strata-bound deposits in China: Beijing, Science Press (Volume I), p. 300–308 (in Chinese).Google Scholar

Copyright information

© Science Press 1995

Authors and Affiliations

  • Zhang Yuxue
    • 1
  • Shao Shuxun
    • 1
  • Zhang Miaoyun
    • 1
  1. 1.Institute of GeochemistryChinese Academy of SciencesCuiyang

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