福建东际金矿成矿地质条件分析

Analysis of Dongji gold deposit metallogenic geologic conditions,Zhenghe County,Fujian

东际金矿是闽北地区最大的金矿床之一,其地质条件和成矿规律的研究对于闽北地区金矿勘查具有重要的指导意义。文章对东际金矿的构造背景、地层岩性、构造特征、岩浆岩、热液蚀变等地质要素进行了分析,阐述了这些地质要素对金矿化的影响,将其成矿特征与浅成低温热液型矿床的成矿模式进行了对比,对东际金矿的矿床成因进行了概述,认为东际金矿床属于浅成低温热液型金矿。此外根据矿床成矿模式,对找矿方向进行了概述。

As one of the largest gold deposits in northern Fujian,the study on geological conditions and metallogenic regularity of Dongji gold deposit is of great significance to gold exploration in northern Fujian.In this paper,geological factors,such as the tectonic setting,formation lithology,structural features,magmatic rocks and hydrothermal alteration are analyzed,and the influence of these geological factors on gold mineralization is expounded.Dongji gold deposit metallogenic characteristics to epithermal gold deposit metallogenic model has carried on the contrast.In this paper,the genesis of the gold deposit in the Dongji gold deposit is summarized.This paper considers that the Dongji gold deposit belongs to the epithermal gold deposit.In addition,according to the metallogenic model,the prospecting direction is summarized.