青海夏日哈木铜镍矿床成矿特征及找矿研究  

Reserch on Mineralization characters and Prospecting of the Xiarihamu Magematic Ni-Cu Sufide Deposit

作　　者：杜玮[1,2] 汤中立[1,2] 杜玉良[3] 姜常义[1,2] 贾群子[3] 

机构地区：[1]长安大学地球科学与资源学院,陕西西安710054 [2]西部矿产资源与地质工程教育部重点实验室,陕西西安710054 [3]西安地质矿产研究所,陕西西安710054

出　　处：《西北地质》2017年第3期180-186,共7页Northwestern Geology

基　　金：国家自然科学基金项目(41302070;41102045);中央高校基本科研业务费(2014G1271066;310827173401;310827172004)共同资助

摘　　要：夏日哈木镍矿发育星点-浸染状、海绵陨铁状及块状3种主要矿石类型。星点-浸染状和海绵陨铁状矿石为幔源岩矿浆深部初步熔离、上侵就位、结晶分异作用形成,受超镁铁质岩橄榄岩、辉石岩相控制;块状-准块状矿石为幔源岩矿浆深部熔离-分期贯入作用形成,受构造薄弱带或裂隙控制。根据成岩成矿作用特征及含矿超镁铁质岩、构造薄弱带等主要控矿因素,加强深部岩矿体追索验证,是拓展矿床规模及找矿前景的有效途径。The Xiarihamu super-large nickel deposit is located in the middle part of the western segment of the East Kunlun orogenic belt. Submassive-massive, sideronitic and disseminated sulfide ores are dominant in the orebody. The former type is formed by deep liquating injected magmaalong the early-formed weak tectonic zone or fracture penetration. The latter two types are formed by liquation and fractional crystallization of mantle-derived magma, which are occurred in peridotite and pyroxenite. It is an effective way for prospecting prospect to understand mineralization enrichment regularity according to the diagenesis mineralization and ore-controlling factors.

关 键 词：铜樣矿床 成矿特征 找矿 夏日哈木 青海省 

分 类 号：P571[天文地球—矿物学]