闫志伟,刘凤武.夏河县姜发囊沟地区土壤地球化学特征及找矿前景分析[J].甘肃地质,2023,(4):42-47
夏河县姜发囊沟地区土壤地球化学特征及找矿前景分析
Soil Geochemical Characteristics and Prospecting Potential of Jiangfananggou in Xiahe County
  
DOI:
中文关键词:  土壤地球化学  异常特征  找矿前景  姜发囊沟地区  夏河县
英文关键词:soil geochemical survey  prospecting potential  Jiangfananggou survey area  Gansu Province
基金项目:甘肃省基础地质调查项目:甘肃省夏河县甘加乡西一带1 ∶ 5万矿产远景调查(2014-2018)
作者单位
闫志伟 甘肃省核地质二一九大队甘肃 天水 741025 
刘凤武 甘肃省核地质二一九大队甘肃 天水 741025 
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中文摘要:
      夏河县姜发囊沟地区位于夏河—合作金及多金属成矿带中。通过开展1 ∶ 10 000土壤地球化学测量工作,对姜发囊沟地区元素的富集、分异、聚类特征和单元素异常、综合异常特征进行了分析研究。结果表明区内Au、Ag、Pb、As、Sb等5种元素变异系数大,相关性较好,异常强度高,具有富集成矿的潜力,圈定以Au、Pb为主的综合异常7个。通过异常查证,在Ty4、Ty6综合异常处发现金铅及多金属矿体1条。综合分析区内土壤地球化学特征及成矿地质条件,认为该地区异常与断裂构造和岩浆活动关系密切,是寻找中低温热液型金及多金属矿的有利地区,找矿前景较好。
英文摘要:
      Jiangfananggou area of Xiahe County is located in the Xiahe-Hezuo gold and polymetallic metallogenic belt. Based on 1:10 000 soil geochemical survey, the enrichment, differentiation and clustering characteristics of elements, single element anomaly and comprehensive anomaly characteristics in Jiangfananggou area were analyzed and studied. The results show that: (1) the five elements of Au, Ag, Pb, As and Sb in the area have large coefficient of variation, good correlation and high anomaly intensity, and have the potential of enrichment and mineralization; (2) A total of 7 comprehensive anomalies, mainly Au and Pb, have been delineated in the area, which are closely related to fault structure and magmatic activity; (3) When verifying the anomaly, a gold-lead polymetallic ore body was found at the comprehensive anomaly of Ty4 and Ty6. The comprehensive analysis of soil geochemical characteristics and metallogenic geological conditions in the area shows that this area is a favorable area for searching for medium-low temperature hydrothermal gold and polymetallic deposits, and the prospecting prospect is good.
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