Identification of the NNW Trending Ore-Controlling Structure in the Huangshaping Lead-Zinc Deposit, Hunan Province and Its Significance to Exploration
详细信息
- 责任者：Zhu Xinyou (Beijing Institute of Geology and Mineral Resources ; Beijing 100012 ; China) ; Wang Jinbing
- 刊名：Geology and Prospecting
- 出版年：2010
- 卷期：46(4)
- 关键词：铅锌矿床 ; lead-zinc deposit ; 湖南 ; Hunan Province
- 页码：p.609-615
- 图表：4 illus., 21 refs.
- 分类号：1001
- issnNo：ISSN0495-5331
- isbnNo：CN11-2043/P
摘要
The Huangshaping Pb-Zn deposit lies in the central part of the Nanling non-ferrous metallogenic zone, Hunan Province. New geological investigation and rock comparison suggest that the NNE faults were the thrusts prior to mineralization, which controlled folds and intrusion of quartz porphyry, and continued to be active during ore-formation time.While the NNW trending structure controlled the intrusion of granite phorphyry, skarn rock and related ore formation of W-Mo and Pb-Zn. Both NNW and NNE trending faults have major controlling effect on the ore bodies which look like S or irregular vein shapes at the intersection of the two sets of faults. Mineralization can be divided into zones around the center of granite porphyry, where the skarn-type W-Mo ore bodies occurred at the rim of the porphyry, and Pb-Zn at outside flank. This new perspective that the NNW trending controlling structure suggests that the porphyry No.301 and its southeast will be an importation district for further exploration, and both sides of the NW line made up of rock boodles No.301 and No.304 have conditions for small Pb-Zn deposit exploration, since they are located at intersection between the NNE and NNW faults.