| 甘肃北山金庙沟南大型硅灰石矿床地质特征及找矿标志 |
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| 引用本文： | 李省晔,刘成刚,陈世强.甘肃北山金庙沟南大型硅灰石矿床地质特征及找矿标志[J].地质找矿论丛,2020,35(4):373-379. |
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| 作者姓名： | 李省晔 刘成刚 陈世强 |
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| 作者单位： | 甘肃省地矿局第四地质矿产勘查院, 甘肃 酒泉 735000 |
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| 基金项目： | 甘肃省地勘基金项目"甘肃省肃北县金庙沟南硅灰石矿普查"（编号：201701-D03）资助。 |
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| 摘 要： | 甘肃省肃北县金庙沟南硅灰石矿床产于敦煌岩群C岩组三岩段的石英硅灰大理岩与花岗岩的接触带及其附近,矿体呈透镜状、似层状产出。矿区共圈出硅灰石矿体16个,矿体长96~818 m,矿体厚度在1.20~12.33 m之间,矿石品位为φ（硅灰石）=35.53%~51.62%,含矿岩石为石英硅灰石大理岩。矿石的类型可分为团块状硅灰石-方解石-石英型矿石、薄层状硅灰石-方解石-石英型矿石。在矿床地质特征研究的基础上,对矿床成因类型进行了分析,提出了找矿标志,对甘肃北山寻找同类矿床具有借鉴意义。
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| 关 键 词： | 金庙沟南硅灰石矿 矿床类型 矿床成因 找矿标志 甘肃省 |
| 收稿时间： | 2020/3/25 0:00:00 |
Geological characteristics and ore exploration marks of the Jinmiaogounan large-size wollastonite deposit, Beishan, Gansu province |
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| LI Shengye,LIU Chenggang,CHEN Shiqiang.Geological characteristics and ore exploration marks of the Jinmiaogounan large-size wollastonite deposit, Beishan, Gansu province[J].Contributions to Geology and Mineral Resources Research,2020,35(4):373-379. |
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| Authors: | LI Shengye LIU Chenggang CHEN Shiqiang |
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| Institution: | Fourth Institute of Geological and Mineral Exploraton of Gansu Provinical Bureau of Geology and Mineral Resourses, Jiuquan 735000, Gansu, China |
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| Abstract: | Jinmiaogounan wollastonite deposit in Subei County, Gansu province, is located in the contact zone between quartz wollastonite marble of the third member of C formation of Dunhuang group and granite and the vicinity. The ore body is lenticular and stratoid. There are 16 wollastonite ore bodies in the mining area with length 96 m-818 m and thickness 1.20 m-12.33 m and content of wollastonite 35.53%-51.62%. The host rock is quartz wollastonite marble. The ore types can be divided into two types:spoted wollastonite-calcite-quartz ore and thin layered wollastonite-calcite-quartz ore. Genesis of the deposit are analyzed and the prospecting marks established that refered to prospecting of the same kind of ore deposit in Beishan, Gansu Province. |
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| Keywords: | Jinmiaogounan wollastonite deposit deposit type genesis of the deposit prospecting marks Gansu province |
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