The geological feature, geochemistry and origin of Jinya gold deposit in Fengshan, Guangxi  

作　　者：ZHOU Jiyuan~1, CUI Bingfang~1 and LU Yan~2 1. Nanjing Institute of Geology and Mineral Resources, Nanjing 210016, China 2. Chengdu Institute of Technology, Chengdu 610059, China 

出　　处：《Chinese Science Bulletin》1999年第S2期168-169,共2页

摘　　要：1 Geological feature of deposit The Jinya gold deposit is a fine disseminated gold mine. It occurs in sandstone and mudstone ofMiddle-Triassic Baifeng Formation, which is located at the margin of Late Paleozoic carbonate platform. Itwas controlled by the fracture zone, cleavage zone and fissure zone. The gold deposit has 15 orebodies,which are displayed as beds, lens and veins. The dominating minerals with gold are pyrite and arsenopyrite. The gold mainly occurs as submicroscopic intergranular gold. Low-to-moderate temperature (130-305℃) wall-rock alterations are mainly silicification, pyritization and arsenopyrite, also includes realgarization, carbonation (calcite, dolomite), sericitization and argillation (kaolinite, pyrophyllite). It wasformed after undergoing the sedimentary diagenetic period, hydrothermal mineralization epoch (213 Ma)and supergene mineralization.

关 键 词：GEOLOGICAL feature Jinya gold DEPOSIT Fengshan. 

分 类 号：P618.51[天文地球—矿床学]