| 东北北部区域构造特征及与有色金属矿产的关系 |
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| 引用本文： | 唐春发.东北北部区域构造特征及与有色金属矿产的关系[J].地质找矿论丛,1986(3):50-58. |
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| 作者姓名： | 唐春发 |
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| 作者单位： | 黑龙江有色地质勘探公司 |
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| 摘 要： | 引言东北北部地跨东北地洼区和松辽地台区,在漫长的地质发展史中经历了前地槽、地槽、地台和地洼的发展历程,历期的岩浆活动、断裂构造运动频繁,区内有色金属矿产的分布与区域构造格架密切相关。笔者在研究前人工作成果的基础上经初步分析写成此文,其论述范围包括黑龙江省和内蒙古自治区呼伦贝尔盟。限于篇幅,本文仅阐述区域深断裂构造与有色金属矿产的关系。不妥之处,请予以指教。
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THE RELATIONSHIP BETWEEN REGIONAL TECTONIC FRACTURES AND NONFERROUS METAL MINERALIZATION IN NORTHERN PART OF NORTHEAST CHINA |
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| Tang Chunfa.THE RELATIONSHIP BETWEEN REGIONAL TECTONIC FRACTURES AND NONFERROUS METAL MINERALIZATION IN NORTHERN PART OF NORTHEAST CHINA[J].Contributions to Geology and Mineral Resources Research,1986(3):50-58. |
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| Authors: | Tang Chunfa |
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| Abstract: | The northern part of Northeast China comprises Northeast China geodepression area and Songliao Platform area and has undergone the evolutionary processes of pregeosyncline, geosyncline, platform and geodepression.The magmatic activities and fracture tectonic movements in all stages are intensive.The distribution of nonferrous metal mineralization is closely related to regional structure patterns.The spatial enrichment of various ore deposits are controlled by deep fractures, displaying distinct zonation.If we take the deep fracture as the centre, we could find that the area within 20-40km away from the deep fracture is the most prospective metallogenic area for porphyry gold-copper and molybdenum; the area of 70-100km away from the centre is favourable for lead-zinc mineralization.Tin mineralization might occur in the area 50 km away from the centre.The several large deposits found recently are all enriched in and near the compound portion of a NE-trending deep fracture and a EW-or ES-trending deep fracture. ost orebodies are controlled by secondary fractures of NE(NNE) trend. |
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