陕西穆家庄铜矿床地质特征及找矿前景分析  

Geological characteristics and prospecting potential of the Mujiazhuang copper deposit,Shaanxi

作　　者：刘凯[1,2] 任涛 曹广杰 张西社 尹颖 郑忠林 党勘峰 刘志明 

机构地区：[1]西北有色地质勘查局七一三总队,商洛726000 [2]长安大学地球科学与资源学院,西安710054

出　　处：《矿产勘查》2015年第2期122-131,共10页Mineral Exploration

基　　金："十二五"国家科技支撑计划项目(编号:2011BAB04B05-2);西北有色地质勘查局重点地质科研项目联合资助

摘　　要：穆家庄铜矿床为一中型铜矿床,位于南秦岭礼县—柞水海西褶皱带东段,柞水—山阳泥盆纪热水沉积盆地菱铁多金属成矿带中部,矿体赋存于主要含矿层位中泥盆统大西沟组中,岩性为一套浅变质海相细碎屑岩—碳酸盐岩。该矿床为典型的沉积—改造型矿床,其形成经历了预富集、再富集两个阶段,为秦岭造山带海西期和印支—燕山期构造活动的产物。通过对矿床的地质、地球化学、地球物理等特征的综合研究分析,认为穆家庄铜矿床深部及外围找矿潜力巨大,在柞水—山阳矿集区有望实现大型铜矿床的找矿突破。The Mujiazhuang copper deposit is a medium - sized deposit which is located in the eastern Lixian - Zhashui Hercyn- ian folding belt, and central part of the siderite polymetallic metallogenic belt of Zhashui - Shanyang Devonian hot water sedimentary basin in the southern Qinling orogenic belt. The main host strata is Middle Devonian Daxigou group which consist of a set of low meta- morphic marine clastic and carbonate rocks. This deposit is a typical sedimentary - reformed deposit, and its formation has experienced two stages, i.e. , pre - enrichment and re - enrichment stage, the deposit formation resulted from the Hercynian and Indosinian - Yan- shan tectonic activity of Qinling orogenic belt. Based on the integrated study on geological, geochemical, geophysical and other features of the deposit, it is believed that there is a great prospecting potential in the depth and surrounding area of Mujiazhuang copper deposit area. It is possible for finding a large - sized copper deposit and achieving significant exploration breakthrough in the Zhashui - Shan- yang mineralization region.

关 键 词：南秦岭 穆家庄铜矿床 柞水—山阳矿集区 陕西 

分 类 号：P612[天文地球—矿床学] P618.41[天文地球—地质学]