| 李康宁,李鸿睿,贾儒雅,严康,李鹏兵,王涛,韦乐乐.甘肃早子沟金矿“三位一体”找矿预测地质模型的构建[J].矿产勘查,2019,(6):1397-1408 |
| 甘肃早子沟金矿“三位一体”找矿预测地质模型的构建 |
| Construction of the Geological Model of“Trinity”Prospecting Prediction in Zaozigou Gold Deposit, Gansu Province |
| 投稿时间：2019-01-10 |
| DOI： |
| 中文关键词: 早子沟金矿 三位一体 地质模型 |
| 英文关键词: Zaozigou gold deposit,trinity,geological model |
| 基金项目:国家重点研发计划(2017YFC0601505)；中国地质调查局项目(121201004000160901)资助。 |
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| 中文摘要: |
| 本文在勘查区找矿预测理论的指导下,系统归纳总结了早子沟金矿的成矿地质体、成矿构造与成矿结构面、成矿作用特征标志,构建了“三位一体”找矿预测地质模型:早子沟金矿成矿地质体为215~230Ma侵入的规模较大的中酸性隐伏侵入体；成矿构造为NE向、近SN向、NW向断裂,成矿结构面为断裂构造与侵入接触结构面；蚀变、矿化具有分带性,以硅化、黄铁矿化、毒砂化、辉锑矿化为主,金均以自然金形式产出,成色较高,成矿热液主要来自于岩浆期后热液,成矿流体为具有中低温、低盐度和低密度特点的NaCl-H2O体系。 |
| 英文摘要: |
| Guided by the theory of prospecting and prediction in the exploration area of Mr. Ye Tianzhu, this paper systematically summarizes the ore-forming geological bodies, ore-forming structures and ore-forming structural planes of the Zaozigou gold deposit, as well as the characteristics of mineralization. The geological model of "trinity" prospecting and prediction is constructed:the ore-forming geological body of Zaizigou gold deposit is a large intermediate-acid concealed intrusive body with 215~230Ma, and the ore-forming structure is NE trending, near SN trending to NW-trending fault. The ore-forming structure plane is faulted structure and intrusive contact structure plane, the alteration and mineralization are zonation, mainly pyrite, arsenopyrite, stibnization, and gold are all produced in the form of natural gold, with high color and metallogenic heat. The fluid is mainly derived from magma, and the ore-forming fluid is a NaCl-H2O system with the characteristics of moderate and low temperature, low salinity and low density. |
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