江西洋鸡山金矿矿相学研究

Ore Microscopy of Yangjishan Gold Deposit

江西洋鸡山金矿矿相学研究楼亚儿（中国地质大学，北京１０００８３）关键词洋鸡山金矿，矿相学，矿物标型特征，隐爆角砾岩江西瑞昌洋鸡山金矿为长江中下游钢－金矿田中一个典型的独立金矿床。矿体赋存在燕山早期石英闪长玢岩与五通组地层接触带附近的隐爆角砾岩筒中，矿...

Yangjishan gold deposit is a typical and independent gold deposit occurring in cryptoexplosive breccia.This paper discusses the textures,structures and paragenetic association of major ore minerals of the ore deposit. It emphasizes the detailed study on physical character and typomorphic character of primary gold and major gold-carrying minerals(pyrite and tetrahedrite).The relationship of gold contents with crystal forms,unit cell parameters, microhardness,reflectance and chemical compositions are summarized.This study has guiding significance in evaluating, prospecting and studying the origin of gold deposit.