| 陈巧妹,刘晓康,马晓萍,宋泰忠,王帆,路超.青海省滩北雪峰地区水系沉积物地球化学特征及找矿预测[J].地质找矿论丛,2019,34(2):294-301 |
| 青海省滩北雪峰地区水系沉积物地球化学特征及找矿预测 |
| Geochemical characteristics of stream sediments and ore-prospecting orientation in Tanbeixuefeng area, Qinghai province |
| 投稿时间：2018-04-11 修订日期：2018-05-29 |
| DOI：10.6053/j.issn.1001-1412.2019.02.018 |
| 中文关键词: 水系沉积物测量 地球化学特征 找矿方向 滩北雪峰地区 青海省 |
| 英文关键词:stream sediment survey geochemical features ore-prospecting orientation Tanbeixuefeng area Qinghai province |
| 基金项目:重大科技专项"柴达木盆地南北缘成矿系统与勘查开发示范"（编号：2016-SF-A3）资助。 |
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| 中文摘要: |
| 文章基于滩北雪峰地区1∶5万水系沉积物地球化学测量数据，分析了元素富集特征，并通过因子分析、聚类分析确定了异常元素组合特征，在工区圈定地球化学综合异常24处。结合工区地质背景分析认为，区内Au、Ag、Cu、Ni、Pb找矿潜力较大，提出了3处成矿远景区：①莲花石沟北成矿远景区，以Au、Ni为主成矿元素，异常与地质、构造关系密切，是寻找与构造相关的金-铜镍多金属矿的有利地段；②小盆地成矿远景区，主要分布于古元古界金水口岩群地层区，异常构造关系密切，是寻找热液型金、铜矿的有利地区；③山间沟成矿远景区，含矿的主要地层为奥陶系祁漫塔格群，是寻找热液型、构造破碎蚀变岩型金、铜矿产的有利地段。 |
| 英文摘要: |
| Based on river sediment geochemical survey at scale 1:50000 in Tanbeixuefeng area element enrichment characteristics are analyzed and anomly element combination characteristics are determined with factor analysis and cluster analysis and 24 integrated geochemical anomlies are located in the working area. Combined with the analysis of background of the working area it is considered potential for prospecting Au、Ag、Cu、Ni、Pb mineral resources and three targets are pointed out:① target Lianhuashigoubei where Au、Ni are principal ore elements and the anomly is closely related to the geology and tectonics thus favorable to prospect the tectonic-related Au-Ni ore deposit; ② target of small basin which occurs mainly in the Proterozaoic Jinshuikou Group-distributed area and where the geochemical anomly is closely related to tectonics thus favorable to prospect the hydrothermal Au-Cu deposit; ③ the inter-hill gulf target where strata of the Ordovician Qimantage Group and favorable to prospect hydrothermal type and altered cataclastic rock type Au-Cu ore deposit. |
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