安徽东源钨钼矿床地质特征及控矿因素

东源钨钼矿床是安徽省地质矿产勘查局332地质队在东源地区找到的大型钨钼矿床,也是安徽省目前探明的规模最大的斑岩型钨矿床.其矿床类型为斑岩型白钨矿,矿体主要产于东源岩体顶部或浅部的强蚀变带中;在东源岩体的接触带及东源岩体深部还发现有热液充填型辉钼矿体;在东源岩体北东部的蚀变辉绿岩中则发现有热液改造型白钨矿.文章着重从成矿地质条件、矿体特征和主要控矿因素等方面阐述该矿床的地质特征和矿床成因.

Geologic features and ore-controlling factors of Dongyuan tungsten and molybdenum deposit, Anhui province

The Dongyuan tungsten and molybdenum ore deposit discovered by 332 geological team of Anhui province is the biggest porphyry tungsten ore deposit discovered so far in Anhui province. The main deposit type is porphyry tungsten ore deposit which is hosted within the top or the superficial part of strong alteration of Dongyuan rock mass. The hot liquid filling type molybdenite body was also discovered in the contact zone of Dongyuan intrusion and in the deep of Dongyuan rock mass, and the hydrothermal transformation type sheelite was hosted within near the northeast of alteration diabase rock mass. In this paper the geological features and genesis of the deposit are mainly analyzed in terms of geological conditions, mineralization characteristics and major ore-controlling factors.