| 王元昊,何虎虎,郁东良,何学昭,辛军强,袁兴民.东昆仑北坡白日其利金矿地质地球化学特征及其找矿意义[J].地质找矿论丛,2023,38(4):431-437 |
| 东昆仑北坡白日其利金矿地质地球化学特征及其找矿意义 |
| Geological and geochemical characteristics of the Bairiqili gold deposit on the northern slope of the East Kunlun mountain and the significance to Au ore prospecting in the area |
| 投稿时间：2023-02-17 |
| DOI：10.6053/j.issn.1001-1412.2023.04.004 |
| 中文关键词: 白日其利金矿 地质特征 地球化学特征 找矿意义 青海省 |
| 英文关键词:Bairiqili gold deposit geological characteristics geochemical characteristics prospecting significance Qinghai Province |
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| 中文摘要: |
| 白日其利金矿为一处位于东昆仑北坡"初具规模、品位偏低"的小型构造蚀变岩型金矿床。东昆仑北坡元古代—太古代岩浆侵入活动强烈而频繁,元古代老变质岩基底分布广泛,断裂构造带发育。本文对白日其利金矿区进行了系统的地球化学研究,结果表明:该区Au、As、Sb等低温元素存在富集现象,显示出了形成金矿优越地质背景;Au元素的沉淀存在多期叠加特征,主要与深大断裂剧烈活动相关的中-低温热液、基性-超基性和中酸性岩浆岩相关的中-高温热液等密切相关,成矿热液来源于深部。综合分析认为本地区找矿前景广阔,有必要开展深部找矿工作。 |
| 英文摘要: |
| The Bairiqili Au deposit is a small ore deposit with lower Au grade located on the northern slope of East Kunlun mountain. During Archean and Poterozoic Era strong and frequent magma intrusion took place and tectonic fractural zones developed and Proterozoic metamorphic basement is widely distributed at the north slope. This pater deals with systematically geochemistry of Bairiqili Au deposit. Around the deposit low temperature elements of Au, As and Sb are enriched suggesting a superior background under which Au deposit would be formed. Au precipitation is related to medium-low temperature fluid and medium-high temperature basic-ultra-baic and intermediate-acid magmatic fluid resulted from activities of big and deep faults thus is characterized by multi-overprinting..Comprehensive analysis shows a prospect for further prospecting Au deposits in the area. |
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