| 高俊宝,王璐,甘继军,赵云,焦建刚.新疆东天山孔雀沟金矿床地质特征及找矿勘查意义[J].矿产勘查,2024,15(12):2216-2225 |
| 新疆东天山孔雀沟金矿床地质特征及找矿勘查意义 |
| The geological characteristics of the Kongquegou gold deposit and its im-plication for Au exploration in the Eastern Tianshan |
| 投稿时间：2023-07-14 |
| DOI：10.20008/j.kckc.202412005 |
| 中文关键词: 东天山 孔雀沟金矿床 矿床类型 找矿前景 |
| 英文关键词: Eastern Tianshan Kongquegou gold deposit deposit type prospecting potential |
| 基金项目: |
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| 中文摘要: |
| 孔雀沟金矿床位于新疆东天山康古尔剪切带南缘的次级剪切带之中，是该地区新发现的金矿床。根据脉体穿插关系、矿物共生组合将成矿过程划分为石英-黄铁矿-绢云母阶段、石英-多金属硫化物阶段以及石英-绿泥石-方解石阶段。黄铁矿和毒砂为主要载金矿物，自然金以包体金或裂隙金的形式产出，成色为 775~919，指示为中低温成矿环境。孔雀沟金矿床与东天山其他造山型金矿具有相似的地质特征和矿化形式，认为是受康古尔韧性剪切作用控制的造山型金矿床。该金矿的发现也指示了东天山西段仍具有较好的金矿勘查潜力，下志留统乌勇布拉克组+次级断裂交汇是东天山西段寻找受变形带控制造山型金矿的关键地质指标。 |
| 英文摘要: |
| The newly-discovered Kongquegou Au deposit in the secondary shear zone at the southern marginof the Kanggur ductile shear zone in the Eastern Tianshan, Xinjiang. According to the cross-cutting relationshipsand mineral assemblage, the mineralization processes of the Kongquegou Au deposit can be divided into threestages: quartz-pyrite-sericite, quartz-polymetallic sulfide and quartz-chlorite-calcite. Gold is mainly hosted bypyrite and arsenopyrite, which occurs as inclusions or in the microfissure. The fineness of native gold varies from775 to 919, which indicates a medium-temperature condition. In summary, the Kongquegou Au gold deposit sharessimilar geological characteristic with other typical orogenic gold deposits in the Eastern Tianshan. We suggest thatthe Kongquegou Au gold deposit can be classified as orogenic class, which is controlled by the Kanggur ductileshear activities. The discovery of this gold deposit implies that the great potential of Au exploration in the west seg.ment of the Eastern Tianshan. The Lower Silurian Wuyongbulake Formation and secondary fault junction are criti.cal indictors for further Au exploration in the Eastern Tianshan. |
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