| 甘肃北山前红泉地区水系沉积物地球化学特征及找矿方向 |
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| 引用本文： | 陈世明,杨镇熙,雷自强,康维良,张晶,赵青虎.甘肃北山前红泉地区水系沉积物地球化学特征及找矿方向[J].现代地质,2022,36(6):1513-1524. |
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| 作者姓名： | 陈世明 杨镇熙 雷自强 康维良 张晶 赵青虎 |
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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”(甘财经二[2017]105号);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”(甘财经二[2018]59号);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”(甘财经二[2019]39号);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”(甘资财环[2020]28号) |
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| 摘 要： | 前人在研究区开展过1∶20万水系沉积物测量及重砂测量,但受比例尺限制,异常面积过大,查证目标不够明确,找矿效果不佳。本次通过对前红泉地区开展1∶5万水系沉积物测量工作,初步总结了该区地球化学特征,根据元素组合特征、成矿地质条件等圈定出综合异常10处;在分析综合异常特征、异常检查情况及成矿潜力的基础上划分了成矿远景区4个,分别为受断裂和韧性剪切带控制的万岁山金成矿远景区、黑山头金多金属成矿远景区、与基性岩有关的帐房山铜钴镍成矿远景区及受酸性岩体内构造裂隙控制的红柳疙瘩钨成矿远景区;在成矿远景区内优选出找矿靶区4处,并提出了下一步找矿工作的建议。
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| 关 键 词： | 水系沉积物 地球化学特征 成矿远景区 找矿靶区 甘肃北山 |
| 收稿时间： | 2021-04-25 |
| 修稿时间： | 2022-06-30 |
Geochemical Characteristics and Prospecting on Stream Sediment Survey in Qianhongquan Area of Beishan in Gansu Province,China |
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| CHEN Shiming,YANG Zhenxi,LEI Ziqiang,KANG Weiliang,ZHANG Jing,ZHAO Qinghu.Geochemical Characteristics and Prospecting on Stream Sediment Survey in Qianhongquan Area of Beishan in Gansu Province,China[J].Geoscience——Journal of Graduate School,China University of Geosciences,2022,36(6):1513-1524. |
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| Authors: | CHEN Shiming YANG Zhenxi LEI Ziqiang KANG Weiliang ZHANG Jing ZHAO Qinghu |
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| Institution: | Fourth Institute of Geological and Mineral Exploration of Gansu Provincial Bureau of Geology and Mineral Resources, Jiuquan, Gansu 735000, China |
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| Abstract: | After the regional geochemical survey and natural heavy mineral survey with the scale of 1∶200 000, a detailed geochemical survey with the scale of 1∶50 000 was implemented in Qianhongquan area of Beishan in Gansu Province, China. The sampling media in this detailed survey is stream sediments sieved between 4 and 20 meshes and 17 elements (W, Sn, Mo, Bi,Cu,Pb,Zn, Cd,Au,Ag, As, Sb, Hg, Co,Ni,Cr, Nb) were analyzed. The geochemical characteristics such as the statistical parameters of elemental concentrations, elemental assemblages based on correlation analysis and R-type cluster analysis were reported and the geochemical anomalies were determined and assessed. Based on these results of geochemical survey, four metallic prospecting areas are recognized which are Wansuishan Au metallic prospecting area controlled by the fracture zone, Heishantou Au-polymetallic prospecting area controlled by the ductile shear zone, Zhangfangshan Cu-Co-Ni polymetallic prospecting area controlled by the basic rocks, and Hongliugeda W metallic prospecting area controlled by tectonic fractures formed in acidic intrusive rocks. Furthermore, four detailed metallic targets are delineated in these prospecting areas for the future exploration works. |
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| Keywords: | stream sediments geochemical characteristics metallic prospecting area metallic exploration target Beishan in Gansu |
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