新疆若羌红石山镍矿地质特征及找矿标志

摘要

新疆若羌红石山镍矿产于早二叠世镁质基性-超基性岩中,杂岩体由多种岩相组成,成矿主要与橄榄岩相关系密切.蚀变类型主要有蛇纹石化、滑石化、伊丁石化、纤闪石化、绿泥石化等,含矿岩体具高磁、低重力、低阻及较高极化率异常特征,Cu,Ni,Co,Cr,Zn等元素显示较突出异常,地表存在次生镍矿风化壳.矿床成因属岩浆晚期就地熔离型镍矿.%Xinjiang Ruoqiang Hongshishan nickel is located in the active foreland of Talimu plate-west Beishan paleozoic rifi ,whichi is one of the most exquisite structure magma belts in Talimu igneous rocks Province. There are many mafic-ultramafic intrusions associated with magmatic Cu-Ni deposits such as Poshi、 Poyi 、 Luodong , are located along the belt and Hongshishan nickel deposit is just distributes in the Mid-Permian mantle source basic-ultrabasic rocks.Hongshishan nickel deposit is a large-scale deposit formed mainly by magma in-situ liquation. combined with permeating.