| 甘肃北山1∶5万前红泉等三幅矿产远景调查新进展 |
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| 引用本文： | 赵吉昌,杨镇熙,陈晔,惠剑宁,樊新祥.甘肃北山1∶5万前红泉等三幅矿产远景调查新进展[J].地质找矿论丛,2021,36(3):366-372. |
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| 作者姓名： | 赵吉昌 杨镇熙 陈晔 惠剑宁 樊新祥 |
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| 作者单位： | 甘肃省地质矿产勘查开发局第四地质矿产勘查院,甘肃酒泉735000 |
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| 基金项目： | 甘肃省基础地质调查项目"甘肃省玉门市前红泉—黑山北滩地区1∶5万矿产远景调查"项目（编号：甘财经二[2017]105号、甘国土资勘发[2018]45号、甘资勘发[2019]66号、甘资财环[2020]28号）资助。 |
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| 摘 要： | 为查明甘肃北山前红泉一带地层、岩浆岩、构造等地质特征和成矿地质条件,总结成矿规律,进行矿产资源远景评价和成矿预测,开展了1∶5万前红泉等三幅矿产远景调查工作。通过4个年度工作,重新厘定了工作区地层系统,建立了区内岩浆岩演化序列,在构造解析的基础上探讨区域构造演化史。将"O-S"地层(敦煌岩群)解体为4个填图单元,首次发现了黑山头埃达克岩,新发现各类矿产地、矿(化)点17处。通过综合研究,圈定6处找矿远景区和10处找矿靶区;对北山地区"O-S"地层(敦煌岩群)进行了重新认识,对北山韧性剪切带金矿找矿前景及钴矿找矿方向等提出了思考和展望。
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| 关 键 词： | 敦煌岩群 岩浆活动 韧性剪切带 找矿发现 北山地区 甘肃省 |
| 收稿时间： | 2021/1/5 0:00:00 |
New progress made from mineral resources potential survey of three sheets of Qianhongquan etc. in Beishan mountain area at scale 1: 50000 |
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| ZHAO Jichang,YANG Zhenxi,CHEN Ye,HUI Jianning,FAN Xinxiang.New progress made from mineral resources potential survey of three sheets of Qianhongquan etc. in Beishan mountain area at scale 1: 50000[J].Contributions to Geology and Mineral Resources Research,2021,36(3):366-372. |
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| Authors: | ZHAO Jichang YANG Zhenxi CHEN Ye HUI Jianning FAN Xinxiang |
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| Institution: | Fourth Institute of Geological and Mineral Exploration of Gansu Bureau of Geology and Mineral Resources, Jiuquan 735000, Gansu, China |
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| Abstract: | Mineral resources potential survey of three sheets of Qianhongquan etc. at scale 1:50000 is finished in 4 years. Stratigraphy, magnetic rocks and geological structure characteristics and Metallogenic condition of the three sheets are investigated. The Metallogenic law summarized, the mineral resources potential evaluated and predicted. The stratigraphy sequence is redefined, the mag-magic evolution series established, the structural evolution history didcussed on basis of structural interpretation. The "O-S" (Dun Huang group) is divided into 4 mapping units. The Heishantou adakite is discovered for the first time. 17 various ore occurrences are found and 6 potential areas and 10 prospecting targets located. The "O-S" stratum is reunderstood. The problem of ductile shearing zone-related gold ore prospecting and Co ore prospecting direction in Beishan mountain area are considered. |
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| Keywords: | Dun Huang group magmatism ductile shearing zone prospecting Beishan mountain area Gansu province |
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