| 左全狮,张中山,周欣.江西大湖塘矿田地质特征、控矿因素及找矿前景分析[J].矿产勘查,2015,6(1):25-32 |
| 江西大湖塘矿田地质特征、控矿因素及找矿前景分析 |
| Geological characteristics, ore-controlling factors analysis and prospecting potential of Dahutang tungsten deposit field, Jiangxi |
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| DOI： |
| 中文关键词: 矿床地质 控矿因素 找矿前景 大湖塘矿田 江西 |
| 英文关键词: deposit geology, ore-controlling factors, prospecting potential, Dahutang tungsten ore field, Jiangxi |
| 基金项目:江西省地质矿产勘查开发局2012年地质科研项目资助。 |
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| 中文摘要: |
| 江西省大湖塘钨(铜、钼、锡、银)矿田位于江南造山带之九岭成矿带西段,矿田内已探明石门寺、狮尾洞两个特大型钨矿床,均属世界级钨矿。文章在简要论述矿田内各类型矿床地质特征的基础上,重点分析了矿田的控矿因素,认为该区的控矿因素复杂,燕山期岩浆岩是控矿的主导因素,是成矿的母岩和前提；各种构造联合、分级控矿:北北东向大断裂控制了矿带,北北东向与近东西向断裂结点控制矿床,岩体接触带、次级断裂、节理裂隙带及隐爆角砾岩筒控制矿体。根据对控矿因素的总结,分析了大湖塘矿田找矿前景,并指出了具体找矿地段。 |
| 英文摘要: |
| The Dahutang tungsten-copper-molybdenum- tin- silver deposit field, is located in the western part of Jiuling metallogenic belt within Jiangnan orogenic belt, where two large world scale tungsten deposits, i.e., Shimensi and Shiweidong tungsten deposits have been discovered in recent years. On the basis of discussion of the geological characteristics of each type deposit in this area briefly, the paper focuses on the analysis of ore-controlling factors. The conclusions are achieved as followings: (1) The magmatic intrusive of Yanshanian period is the main ore-controlling factor, it is the ore-forming source rock and basis; (2) different types of structures control the mineralization by jointing or secondary branch:NNE-striking fault controls the distribution of the mineralization belt, and the joint of NNE-striking and nearly EW-striking fault controls the formation of the deposit; the contact structure between the country rock and intrusive, secondary faults, joint fissures and concealed breccia pipe structures control the distribution of the orebodies. Finally, the prospecting potential in the Dahutang ore field is discussed and the detailed prospecting targets are outlined. |
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