黑龙江黑河长岗山西钼矿床地质特征及成因机制

在对黑龙江黑河长岗山西钼矿区域地质背景及地质、地球物理与地球化学特征描述综合研究的基础上，利用地质、物探和化探等相关数据，建立了钼矿综合信息找矿模型。并引入“烃碱流体”理论，从地球化学的角度，结合研究区地质特征，运用“气体爆炸”及碱交代作用，对钼矿的矿源和成因机制进行了探讨，认为印支期岩浆活动形成的台山岩体为钼矿成矿活动提供了成矿物质，黑河长岗山西的印支期花岗闪长岩中的钼矿属热液交代型钼矿。

Geological features and origin mechanism of Mo deposit in western Changgang mountain of Heihe, Heilongjiang Province

On the basis of the regional geological background and characters of geology，geophysics and geochemistry of the Mo deposit in western Changgang Mountain of Heihe，Heilong jiang Province，the related geological， geophysical and geochemical data have been used to build the comprehensive information prospecting models for the Mo deposit． The“Hydrocarbon Alkali-Fluids”theory is introduced on geochemistry aspect． Based on the geological phenomena in this area，the authors considered the deposit“gas explosion”and alkali metasomatism， and discussed the sources and genetic mechanism of Molybdenum． The authors suggest that the Taishan rocks formed by Indosinian magmatism offered the ore-forming elements for molybdenum ore-forming． The molybdenum ore formed in Indosinian granodiorite in western Changgang Mountain of Heihe belonged to hydrothermal fluid metasomatic deposit in type．