| 甘肃张家川县闫家店金钴多金属矿地质特征及找矿潜力分析 |
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| 引用本文： | 段得洪,罗学红,刘伟.甘肃张家川县闫家店金钴多金属矿地质特征及找矿潜力分析[J].矿产与地质,2016(3):338-343. |
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| 作者姓名： | 段得洪 罗学红 刘伟 |
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| 作者单位： | 1. 江西省地矿局赣西北大队,江西 九江,332000;2. 甘肃省地质矿产勘查开发局第一地质矿产勘查院,甘肃 天水,741020 |
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| 摘 要： | 甘肃张家川县闫家店金钴多金属矿位于北祁连加里东造山带东端,北祁连与华北地块接合部位,龙口峪石英闪长岩体外接触带。该区海西期、加里东期岩浆活动剧烈,侵入期次较多,近NW向韧性剪切带和NEE向脆性构造发育,各种热液蚀变分布广泛。通过对矿区地质特征、物化探特征以及岩石化学特征的描述,初步分析了区内多金属找矿潜力,进一步指出应重视NEE向断层破碎带的研究,并加强毕家沟岩株北接触带的深部找矿力度。
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| 关 键 词： | 金钴多金属矿 祁连-北秦岭构造带 地质特征 找矿潜力 |
Geological characteristics and prospecting potential of Yanjiadian Au-Co polymetallic deposit in Zhangjiachuan of Gansu |
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| Abstract: | Yanjiadian Au-Co polymetallic deposit of Zhangjiachuan County in Gansu is located at the east end of North-Qilian Caledonian orogenic belt,the joint position of North-Qilian massif and North China massif, the exocontact zone of Longkouyu quartz diorite rock mass.In this area magmatic activities of Hercynian and Caledonian period are intense with multiple intrusion stages.Nearly NW-trending ductile shear zone and NEE-trending brittle structure are well developed,and various kinds of hydrothermal alteration are widely distributed.This paper described the geological,geophysical,geochemical and petrochemical characteristics, and analyzed the prospecting potential of polymetallic resources in this area.It also pointed out the impor-tance of the study on NEE-trending fault fracture zone,and suggested that more prospecting works should be carried out in the deep part of north contact zone of Bijiagou stock. |
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| Keywords: | Au-Co polymetallic deposit Qilian-North Qinling tectonic belt geological characteristic pros-pecting potential |
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