Essential natures of Carlin-type gold mineralization in the Zhenxun Basin  

作　　者：MA Jianqin~1 and ZHANG Fuxin~2 1. Institute of Geochemistry, Chinese Academy of Science, Guiyang 550002, China Present address: Highway Egineer College, Xi’an Highway University, Xi’an 710064, China 2. Department of Geology, Northwest University, Xi’an, 710069, China 

出　　处：《Chinese Science Bulletin》1999年第S2期238-240,共3页

摘　　要：THE Zhen’ an-Xunyang (Zhen-Xun) Basin, located in the center of the Qinling Minor Plate in the Qinling orogen, develped and evoluted from the Devonian to the Triassic. The basin and its basement aresimilar to that of the southwestern part of the Yangtze Plate, where occur rich epithermal deposits. Thebasement of the basin is composed of the Proterozoic low-grade metamorphised volcanic and sedimentaryrocks, on which weakly metamorphised sedimentary and sedimentary rocks are deposited from the Cambrian to the Triassic. There occur three kinds of epithermal metal deposits: exhative-sedimentary-reformationtype Pb-Zn deposit (such as Xitonggou and Yuexi) ; reformation type Hg-Sb deposit (such as Dingjiashanand Shijiashan) ; sedimentary-reformation type Au deposit (such as Jinlongshan, Qiuling, Yaojie andJiashigou). The Au deposits are associated with minor Sb deposit. This contribution demonstrates onlythe essential natures of the epithermal gold mineralization.

关 键 词：Carlin TYPE GOLD MINERALIZATION Zhenxun Basin. 

分 类 号：P618.51[天文地球—矿床学]