白马寨铜镍硫化矿地球化学特征及成矿  

GEOCHEMICAL CHARACTERISTICS AND MINERALIZATION OF BAIMAZHAI CU-NI SULFIDE DEPOSIT, YUNNAN PROVINCE

作　　者：宋立军[1] 吴冲龙[1] 朱杰勇[2] 尹潘[1] 梁雄兵[1] 张中旺[1] 佟彦明[1] 

机构地区：[1]中国地质大学,武汉430074 [2]昆明理工大学,昆明650093

出　　处：《地质与勘探》2005年第4期39-46,共8页Geology and Exploration

摘　　要：系统研究金平县白马寨铜镍硫化矿地质、矿床地球化学特征,初步认为该矿床形成于华力西期弧后盆地拉张的构造环境。并提出本矿床为幔源岩浆熔离-结晶分异,岩浆、含矿岩浆、富矿岩浆和矿浆依次脉冲式贯入成矿和成矿期后煌斑岩浆侵入破坏,并叠加成矿的矿床成因模式。从而,建立了本区铜镍矿床的成矿模型,并对该矿床深部及外围找矿提出建议。Based on systemic studies of geology and geochemistry characteristics of Baimazhai Cu-Ni deposit in Jinping county, Yunnan province, it is suggested that the Baimazhai ore deposit was formed in Variscan post-arc extensional environment of continent margin. An ore-forming model with fractional crystallization of mantle-derived magma melt-crystal difference, magma, ore-bearing magma, ore-rich magma, ore-magma pulsed inrush in turn, post-mineralization lamprophyre magma intrusion and superposition mineralization has been proposed. Ore-forming model of the Cu-Ni deposit is established and exploration suggestions at the periphery and deep part of deposit are pointed out.

关 键 词：地球化学 成矿环境 成矿模式 白马寨 铜镍硫化矿 

分 类 号：P618.41[天文地球—矿床学] P618.63[天文地球—地质学]