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 )
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.
出处
《云南地质》
2002年第2期107-120,共14页
Yunnan Geology
基金
原国家计委 98- 0 1项目部分研究成果
关键词
盆-山过渡区
成矿类型
中新生代
云南
造山带
楚雄盆地
断陷盆地
Transitional Structure between Basin and Mountains
Metallogenetic Type
Mesozoic-Cenozoic
Central-Western Yunnan
