[an error occurred while processing this directive] Global Geology 2020, 23(2) 92-98 DOI:   10.3969/j.issn.1673-9736.2020.02.03  ISSN: 1673-9736 CN: 22-1371/P
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本文关键词相关文章
fault structure
lead-zinc deposit
profile inversion
Qingchengzi
Liaoning
本文作者相关文章
PubMed
Ore-controlling effect of structure and distribution of deep rock mass on Pb-Zn deposit in Qingchengzi ore concentration area,Liaoning
NIU Mingxuan, YU Yunliang, TIAN Liya, NIU Wenqing, XU Haibo
College of Earth Sciences, Jilin University, Changchun 130026, China
摘要： Qingchengzi ore concentration area in Liao-Ji rift is an important lead-zinc ore area of China, and the deep prospecting in this area has great prospects. Based on the spatial occurrence of ore bodies the Pb-Zn deposit can be divided into three types: layered, vein-shaped and pinnate. The deep geological conditions in this area are deduced by analyzing the tectonic evolution process and rock mass gravity inversion. The tectonic evolution of Liao-Ji rift can be divided into three stages: Paleoproterozoic extension period, Mesoproterozoic compression period and Mesozoic reactivation period. The magmatic activities in the Indosinian epoch led to the distribution pattern of the present deposits. According to the gravity inversion, Shuangdinggou- and Xinling rock masses on the north and south sides of the mining area are connected in the deep. The connected rock body might be distributed in the entire mining area. Xinling rock mass may be a branch extending from Shuangdinggou rock mass along the northeast trending fault, the connected rocks provide magmatic hydrothermal fluid for the final, folds and faults result in different types of ore body shapes.
关键词： fault structure   lead-zinc deposit   profile inversion   Qingchengzi   Liaoning  
Ore-controlling effect of structure and distribution of deep rock mass on Pb-Zn deposit in Qingchengzi ore concentration area,Liaoning
NIU Mingxuan, YU Yunliang, TIAN Liya, NIU Wenqing, XU Haibo
College of Earth Sciences, Jilin University, Changchun 130026, China
Abstract: Qingchengzi ore concentration area in Liao-Ji rift is an important lead-zinc ore area of China, and the deep prospecting in this area has great prospects. Based on the spatial occurrence of ore bodies the Pb-Zn deposit can be divided into three types: layered, vein-shaped and pinnate. The deep geological conditions in this area are deduced by analyzing the tectonic evolution process and rock mass gravity inversion. The tectonic evolution of Liao-Ji rift can be divided into three stages: Paleoproterozoic extension period, Mesoproterozoic compression period and Mesozoic reactivation period. The magmatic activities in the Indosinian epoch led to the distribution pattern of the present deposits. According to the gravity inversion, Shuangdinggou- and Xinling rock masses on the north and south sides of the mining area are connected in the deep. The connected rock body might be distributed in the entire mining area. Xinling rock mass may be a branch extending from Shuangdinggou rock mass along the northeast trending fault, the connected rocks provide magmatic hydrothermal fluid for the final, folds and faults result in different types of ore body shapes.
Keywords: fault structure   lead-zinc deposit   profile inversion   Qingchengzi   Liaoning  
收稿日期 2019-12-23 修回日期 2020-01-20 网络版发布日期  
DOI: 10.3969/j.issn.1673-9736.2020.02.03
基金项目:

Supported by the National Science Foundation for Distinguished Young Scholars of China (No. 41502309).

通讯作者: YU Yunliang
作者简介:
作者Email: yuyunliang@jlu.edu.cn
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