386高地钼矿点地质特征及成因分析

Analysis of molybdenum ore geological characteristics and genesis of hill 386

文章介绍了386高地钼矿点位于黑龙江省嫩江县,地处罕达气-三道湾子铜金成矿远景区。该矿赋存于大网子组变质岩与花岗斑岩中,主要矿石岩性为花岗斑岩、云英岩化长英质片岩,蚀变包括云英岩化、电气石化、绿泥石化、碳酸盐化、硅化、黄铁矿化蚀变。钼矿体与花岗斑岩多次侵入密切相关,形成明显的三期蚀变期,为钼矿富集提供了有利条件,推断该钼矿床为高温热液成因。该地区钼矿的找矿方向为围绕蚀变的花岗斑岩寻找钼矿的线索。

This paper introduces 386 high molybdenum mines are located in Heilongjiang County of Nenjiang Province, located in handaqi - three Bay sub copper gold mineralization. The ore deposit is hosted in the large net group metamorphic rocks and granite porphyry. The main ore bodies are granite porphyry and dolomite feldspar schist. Alteration includes dolomitization, electrical petrification, chlorinification, carbonation, silicification and pyrite alteration. The molybdenum ore body is closely related to the multiple intrusion of granite porphyry, forming a significant three stage alteration period, which provides favorable conditions for the enrichment of molybdenum ore. It is concluded that the molybdenum deposit is a high temperature hydrothermal origin. The prospecting direction of the molybdenum ore in this area is the clue to the search for molybdenum ore around the altered granite porphyry.