柴达木北缘二旦沟金铜矿成矿特征及找矿标志  

Metallogenic Characteristics and Prospecting Criteria of Erdangou Gold-copper Deposit in Northern Margin of Qaidam

作　　者：思积勇 郑辉 孙婷婷 SI Jiyong;ZHENG Hui;SUN Tingting(The Fifth Geological Exploration Institute of Qinghai Province,Xining,Qinghai 810099,China)

机构地区：[1]青海省第五地质勘查院,青海西宁810099

出　　处：《中国锰业》2020年第1期26-29,35,共5页China Manganese Industry

基　　金：青海省地质勘查基金项目(青国土资矿[2014]57号)。

摘　　要：二旦沟金铜矿位于赛什腾山—阿尔茨托山加里东期、印支期铅、锌、金、钨锡(铜、钴、稀土)成矿带上,成矿地质条件优越。受自然条件制约,二旦沟金矿床发现较晚,且工作程度较低,找矿方向不明确。通过对成矿地质背景、矿床地质特征等资料综合研究,认为金铜矿与华力西期蚀变花岗闪长斑岩、石英脉及北西—南东向构造作用密切,成矿类型为构造蚀变岩型金矿、石英脉型金矿。通过对矿床地质特征和成矿作用的总结,对矿区找矿前景和找矿方向进行了探讨,以期对矿区矿产勘查工作有所裨益。Erdangou gold-copper mine is located in the Caledonian-Alzto Mountains in the Caledonian,Indosinian lead,zinc,gold,tungsten-tin(copper,cobalt,rare earth)metallogenic belts.The ore-forming geological conditions are superior.However,due to natural conditions,the Erdangou gold deposit was found late and the degree of work was low.The direction of prospecting was not clear.Based on the comprehensive study of metallogenic geological background and geological characteristics of the deposit,it is believed that the main development of the mining area is closely related to the Hualixi alteration granodiorite porphyry,quartz vein and the northwest-south east tectonic effect,such as Type gold ore,quartz vein type gold deposit.Through the summary of the geological characteristics and mineralization of the deposit,we have discussed about the prospecting prospects and prospecting direction of the mining area to benefit the mining exploration of the mining area.

关 键 词：金铜矿 成矿特征 找矿标志 

分 类 号：P618.51[天文地球—矿床学] P618.41[天文地球—地质学]