甘肃石庙金矿床地质特征及成矿物质来源探讨  

Exploration of Geological characteristics and mineral sources of Shimiao gold deposit in Gansu Province

作　　者：程衎 谢文欣 Cheng kan;Xie wenxin(Shaanxi Geological Comprehensive Geological Detachment Co.,Ltd.Weinan 714000,Shaanxi,China;Gansu Province Geological Survey and Mining Bureau Second Exploration Institute.Lanzhou 730020,Gansu,China)

机构地区：[1]陕西地矿综合地质大队有限公司,陕西渭南714000 [2]甘肃省地矿局第二勘查院,甘肃兰州730020

出　　处：《陕西地质》2024年第2期50-55,共6页Geology of Shaanxi

摘　　要：石庙金矿为甘肃北山地区众多金矿中典型的与岩浆活动关系密切的金矿床。该矿床产于华力西期石英闪长岩中的次级断裂构造带内,矿床产出地质构造特征、成矿流体同位素及成矿元素分析,显示出其成矿与岩浆岩紧密相关,同时成矿与各级构造系统也关系密切,区内北东向及北西向次级断裂构造为含矿热液流体的运移储存提供了有利空间。矿床成因为岩浆期后中—低温热液脉型金矿床。The Shimiao gold mine is representative of a class of gold deposits that are closely associated with magmatic processes,a fact that is evident in numerous other gold mines in the Gansu Beishan region.The deposit is produced in the secondary fracture tectonic zone within the quartz diorite of the Huarixi period.The geological and structural characteristics of the deposit,the isotope analysis of the metallogenic fluids,and the metallogenic elements indicate that the mineralization is closely related to the magmatic rocks.Additionally,the mineralization is closely related to the various levels of the tectonic system.The secondary fracture tectonics of the area in the north-east and north-west directions provide a favorable space for the transportation and storage of the ore-bearing hydrothermal fluids.The deposit is characterized as a postmagmatic,medium-low temperature hydrothermal vein-type gold deposit.

关 键 词：石庙金矿 地质特征 华力西期岩浆活动 构造控矿 

分 类 号：P618.51[天文地球—矿床学]