青海省哇洪山北北西向构造岩浆岩带构造地球化学初探  

PRELIMINARY STUDY ON TECTONO-GEOCHEMISTRY OF NNW-TRENDING WAHONGSHAN TECTONO-MAGMATIC BELT IN QINGHAI PROVINCE

作　　者：尹华仁[1] 周显强[1] 于宏东[2] 张拴宏[1] 田晓娟[1] 

机构地区：[1]中国地质科学院地质力学研究所,北京100081 [2]中国地质大学(北京)地球科学与资源学院,北京100083

出　　处：《地质地球化学》2001年第3期81-89,共9页Geology-Geochemistry

基　　金：国土资源地质大调查项目 (DKD990 2 0 0 3 )

摘　　要：本文从构造地球化学角度 ,论述了区内Ag、Pb、Zn等多金属成矿元素的聚矿成矿环境 ,阐述了成矿元素聚矿成矿与印支燕山期NNW向构造岩浆活动晚期脆性形变的密切关系。聚矿成矿具一定规律 ,受NNW向压性形变控制。从元素集散规律分析了区内的重要找矿前景 。On the basis of tectono-geochemistry of the Wahongshan tectono-magmatic belt, the paper gives a detailed study of the ore-forming environment of Ag,Pb and Zn in the area studied. The result shows that the enrichment of ore-forming elements and the formation of orebodies have much relationship to late brittle deformation in the NWW-trending tectono-magnetic belt of Indosinian age. The formation of orebodies is controlled by the NNW-trending thrust faults along the belt. The position where the NWW-trending tectono-magnetic belt was destroyed by late brittle fault zones is the favorable locus for explorating blind ores.

关 键 词：构造地球化学 聚岩聚矿 构造岩浆岩带 青海 银 铅 锌 成矿元素 找矿前景 

分 类 号：P595[天文地球—地球化学]