云南保山核桃坪铅-锌矿床地质特征  

GEOLOGICAL CHARACTER OF THE HETAOPING LEAD ZINC DEPOSIT OF BAOSHAN,YUNNAN PROVINCE

作　　者：朱余银[1] 韩润生[1] 薛传东[1] 陆森林[1] 邹海俊[1] 袁志红 

机构地区：[1]昆明理工大学国土资源工程学院 [2]保山核桃坪铅锌矿,云南保山670000

出　　处：《矿产与地质》2006年第1期32-35,共4页Mineral Resources and Geology

基　　金：国家教育部新世纪优秀人才支持计划项目(NCET-04917);云南祥云飞龙股份有限公司(2003)资助

摘　　要：保山核桃坪铅-锌矿为一中型铅-锌矿床。矿体赋存于上寒武统核桃坪组,主要受近SN向的层间断裂(F1)及次级断裂构造控制,岩石(性)控矿也十分明显,成矿作用与矽卡岩化密切相关。通过对该矿床地质特征的系统分析以及对矿床围岩蚀变、控矿因素的深入研究,认为该矿床主要矿化作用是深部高温成矿流体贯入并与围岩发生矽卡岩化蚀变,随后发生矿化作用。矿床应属矽卡岩型铅-锌矿床。The Hetaoping lead zinc deposit in Baoshan is a middle scale of lead and zinc deposit. The orebodies occur in Hetaoping group in upper Cambrian epoch mainly controlled by near SN striking fracture （F1） and its secondary faulted structure as well as obvious lithologic control and the mineralization is closely associated with skarnization. According to the systematic analysis on the geological characteristics of the deposit and the detailed research on alteration of the country rocks and ore controlling factors, It is considered that the major mineralization was caused by high temperature fluid invasion from deep part and skarnization produced by alteration process with country rocks. Therefore the deposit belongs to skarn type of lead and zinc deposit.

关 键 词：铅-锌矿床 成因 地质特征 核桃坪 云南 

分 类 号：P618.42[天文地球—矿床学] P618.43[天文地球—地质学]