K-Ar DATING OF FAULT GOUGE FROM THE MAIN FAULT OF WULONGGOU GOLD DEPOSIT IN DULAN, QINGHAI PROVINCE

LU Lu; ZHANG Yan-lin; WU Zhen-han; HU Dao-gong

2013 Vol. 19, No. 4

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LU Lu, ZHANG Yan-lin, WU Zhen-han, HU Dao-gong. K-Ar DATING OF FAULT GOUGE FROM THE MAIN FAULT OF WULONGGOU GOLD DEPOSIT IN DULAN, QINGHAI PROVINCE[J]. Journal of Geomechanics, 2013, 19(4): 385-391, 446.

Citation:

LU Lu, ZHANG Yan-lin, WU Zhen-han, HU Dao-gong. K-Ar DATING OF FAULT GOUGE FROM THE MAIN FAULT OF WULONGGOU GOLD DEPOSIT IN DULAN, QINGHAI PROVINCE[J]. Journal of Geomechanics, 2013, 19(4): 385-391, 446.

K-Ar DATING OF FAULT GOUGE FROM THE MAIN FAULT OF WULONGGOU GOLD DEPOSIT IN DULAN, QINGHAI PROVINCE

1.
Chinese Academy of Geological Science, Beijing 100081, China
2.
Qinghai No.1 Academy of Gelogy and Mineral Exploration, Xining 810600, China
3.
Institute of Geomechanics, Chinese Academy of Geological Science, Beijing 100081, China

Received Date: 23 June 2013

Publish Date: 25 December 2013

Abstract

Abstract

In this paper, K-Ar dating of three fault gouge samples from the main fault belt in Wulonggou gold ore in Dulan, Qinghai Province were made to determine the activity time of the brittle fault. Then the relationship between the main fault and mineralization was discussed. The age of self-generated illite within the fault gouge samples is 185.54±3.06 to 165.11±3.28 Ma, which represents the formation epoch of the main fault being the late of Early Jurassic to Middle Jurassic. Combining with the field geological condition, it is suggested that main fault damaged and modified mineralization in the late of Early Jurassic to Middle Jurassic.
- K-Ar dating /
- fault gouge /
- Wulonggou gold deposit /
- Qinghai Province

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References

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