湖北崇阳小水金矿地质特征及控矿地质因素  

Geological characteristics and ore-controlling geological factors of Xiaoshui gold deposit in Chongyang,Hubei

作　　者：尹近 陆宇鹏 张文胜 石德强 钟温 阳蓉 Yin Jin;Lu Yupeng;Zhang Wensheng;Shi Deqiang;Zhong Wen;Yang Rong(The Fourth Geological Team of Hubei Geological Bureau,Xianning 437100,Hubei,China;Xianning Natural Resources and Planning Bureau,Xianning 437100,Hubei,China)

机构地区：[1]湖北省地质局第四地质大队,湖北咸宁437100 [2]咸宁市自然资源和规划局,湖北咸宁437100

出　　处：《地质学刊》2022年第1期41-47,共7页Journal of Geology

基　　金：湖北省地质勘查项目“湖北省崇阳县小水金矿区天井坡矿段详查”[鄂地(1988)202]。

摘　　要：湖北崇阳方山背斜南东翼为鄂南片区的金矿聚集区,金矿床多分布于震旦系陡山沱组层间破碎带中。小水金矿是该地发现的一处小型金矿,含矿岩性以硅化碎裂页岩夹白云岩、硅化白云岩夹页岩为主。总结该金矿床成矿地质特征,结合区域地质分析,认为震旦系陡山沱组构成了该区金矿床的初始矿源层,矿体受层间破碎带及其次级构造裂隙控制明显,陡山沱组第二岩性段含泥质白云岩、页岩特有的岩性组合是成矿流体聚集和成矿金属卸载的有利空间。通过与我国典型卡林型金矿成矿地质特征的对比,指出小水金矿应属卡林型金矿,对方山地区金矿的成因认识有一定的借鉴意义。The south-east limb of the Fangshan anticline in Chongyang of Hubei is the gold deposit concentration area in southern Hubei.Gold deposits are mostly distributed in the interlayer fracture zone of the Sinian Doushantuo Formation.Xiaoshui gold deposit is a small gold deposit found in this area.The ore-bearing lithology is dominated by silicified fractured shale mixed with dolomite and silicified dolomite mixed with shale.Combining regional geological analysis with a summary of geological characteristics of mineralization,this paper believes that the Sinian Doushantuo Formation constitutes the initial source layer of the gold deposit in this area.The ore body is obviously controlled by the interlayer fracture zone and its secondary structural fissures.The unique lithologic combination of muddy dolomite and shale in the second lithologic section of the Doushantuo Formation provides a favorable space for the accumulation of ore-forming fluids and the unloading of ore-forming metals.Through a comparative study with the metallogenic geological characteristics of the typical Carlin-type gold deposit in China,this paper points out that the Xiaoshui gold deposit should fall into the Carlin gold deposit,which provides reference to the genesis and understanding of gold deposits in Fangshan area.

关 键 词：地质特征 控矿因素 小水金矿 湖北崇阳 

分 类 号：P618.51[天文地球—矿床学] P622.1[天文地球—地质学]