早子沟金矿岩石地球化学特征及其地质意义

早子沟金矿位于西秦岭造山带北缘，近年来随着勘查程度的加强，矿区资源储量增加明显，已达特大型规模。本文通过对矿区岩石的地球化学特征的分析研究，揭示矿区岩浆岩的具有喜马拉雅型花岗岩的特性，并就其产出的构造环境及其与金成矿的关系做了进一步阐述，认为矿区Au元素来源于增厚下地壳物质与喜马拉雅型花岗岩关系密切，岩浆热液—构造—围岩的耦合富集作用是形成矿区金矿床工业堆积的主要原因。

Geochemical Characteristics of Zaozigou Gold Deposit and its Significance

Zaozigou gold mine is located in the northern margin of the West Qinling orogenic belt, and its reserve has reached the super-large scale with the exploration during recent years. The geochemical characteristics of rock in mine revealed that the mine magmatic rock has the characteristics of the Himalayan granite. The paper analyzed the relation between the environment of magmatic rock and gold metallogenesis, and supposed that the source of gold was the crustal material under the thickening mechanism related to Himalayan granite. The coupled enrichment of magmatic hydrothermal solution-structures-country rock should be the main factor to develop the accumulation of gold deposit.