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云南中西部中新生代盆-山过渡区构造及成矿特征

THE STRUCTURE AND METALLOGENESIS OF THE TRANSITIONAL AREA BETWEEN MESOZOIC-CENOZOIC BASINS AND OROGENIC BELTS IN CENTRAL-WESTERN YUNNAN

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【作者】 刘和林李志伟钟维敷钱祥贵

【Author】 LIU He-lin 1,LI Zhi-wei 2,ZHONG Wei-fu 3,QIAN Xiang-gui 2(1 Geologic Team 2, Yunnan Geo-exploration Bureau, Wenshan 653000) (2 Land Resources Department of Yunnan Province, Kunming 650011) (3 Yunnan Institute of Geological Survey, Kunming 6500

【机构】 云南省地勘局第二地质大队云南省国土资源厅矿产资源储量评审中心云南省地质调查院资源评价处云南省国土资源厅矿产资源储量评审中心 文山653000昆明650011昆明653000昆明650011

【摘要】 简述云南中西部地壳岩石圈演化历史过程中 ,中 新生代形成的楚雄盆地与哀牢山造山带两个重要地质单元 ,在空间上相互依存、在物质上相互转化的特点 ,分析盆 (地 ) 山(脉 )过渡区域主要构造特征 ,讨论此类构造地段作为构造动力、构造 流体活跃区对矿产资源形成的影响 :一是形成与走滑断裂 岩浆活动有关的铜 (钼 )、金矿床 ;二是在褶皱 冲断系统 ,导致铅锌、铜等大宗金属和金、银的巨量堆积。最后强调 ,盆 (地 ) 山 (脉 )过渡区域研究在指导新一轮成矿预测评价中的重要现实意义

【Abstract】 Two units, i e , Meszoic-Cenozoic sedimentary basins and orogenic belts were formed during the evolution of the crustal lithosphere of central-western Yunnan. They are each other correlative in time-space and transformed in materials. In this paper, we have an analyse of the main structural characteristics of the transitional area between them and a discussion about the metallogenic effects of this area as an active region of tectonic dynamic and fluid. The metallogenesis can be divided into two types, i e , the Cu(Mo) and Au deposits correlated with strike-slip faulting-magmatism and the magnitude accumulation of a lot of metals, such as Pb, Zn, Cu, Ag and Au resulted from folding-thrusting system. And we believe the study on the transitional area is very important as a guidance to the new metallogenetic prognosis and evaluation.

【基金】 原国家计委 98— 0 1项目部分研究成果
  • 【文献出处】 云南地质 ,Yunnan Geology , 编辑部邮箱 ,2002年02期
  • 【分类号】P541
  • 【被引频次】15
  • 【下载频次】167
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