ISSN 1009-6248CN 61-1149/P 双月刊

主管单位:中国地质调查局

主办单位:中国地质调查局西安地质调查中心
中国地质学会

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    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

    • 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。

       

      Abstract: 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.

       

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