Analysis on the Ore-control Structure in Yanzigou Gold deposit of Danba Area of the Western Sichuan

Metal Mine ›› 2011, Vol. 40 ›› Issue (10): 116-120.

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Analysis on the Ore-control Structure in Yanzigou Gold deposit of Danba Area of the Western Sichuan

Cheng Jun¹，Zhao Zhiqiang²，Niu Gang³，Kang Congxuan⁴，Zhang Lin⁴

1.Chongqing Institute of Geology and Mineral Resources；2.Regional Geological Survey Party，Sichuan Bureau of Geological Exploration and Exploration of Mineral Resources；3.Geophysical and Geochemical Prospecting Party,Sichuan Bureau of Geological Exploration and Exploration of Mineral Resources；4.College of Earth Sciences，Chengdu University of Technology

Online:2011-10-11 Published:2011-10-12

Abstract

Abstract: The main stress in the mineralization period of the deposits is analyzed by using the joint contour diagram and the joint rose diagram.Compared to the regional tectonic evolution of the deposit，the fracture and the joint of deposit are classified.Then，the levels and time of the ore-controlling faults are determined and matched with the ore-controlling joints.Meanwhile，the ore-controlling mechanism of deposits and its metallogenic law are analyzed.The analysis shows that the main stress in the mineralization period is in the direction of NNE-SSW.The deposit is mainly grown in the form of echelon vein ore-body.The ore-controlling faults are divided into three levels，and the mineralization is classified into three stages.Combining with the geological background of mineralization and the geological feature of the deposit，the ore prospecting direction is proposed.

Key words: Ore-controlling structure, Principal stress, Rose diagram of joint, Yanzigou gold mine, Danba

CHENG Jun, ZHAO Zhi-Qiang, NIU Gang, KANG Cong-Xuan, ZHANG Lin. Analysis on the Ore-control Structure in Yanzigou Gold deposit of Danba Area of the Western Sichuan[J]. Metal Mine, 2011, 40(10): 116-120.

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Analysis on the Ore-control Structure in Yanzigou Gold deposit of Danba Area of the Western Sichuan

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