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J4 ›› 2012, Vol. 20 ›› Issue (3): 46-49.

• 矿产勘查 • 上一篇    下一篇

土壤离子电导率法和地电提取法在青藏高原冻土区寻找隐伏金矿的对比研究

邱炜1,2,3,王文4,任二峰5   

  1. 1.青海省地质调查院,青海  西宁   810012;
    2.青海省地质矿产研究所,青海  西宁   810012;
    3.青海省青藏高原北部地质过程与矿产资源重点实验室,青海  西宁   810012;
    4.青海省第五地质矿产勘查院,青海  西宁   810001;
    5.中国科学院青海盐湖研究所,青海  西宁   810008
  • 收稿日期:2012-03-09 修回日期:2012-05-06 出版日期:2012-06-28 发布日期:2012-11-12
  • 作者简介:邱炜(1981-),男,山东济南人,工程师,从事地球化学研究工作.sleepdream@qq.com
  • 基金资助:

    青海省地质勘查基金项目“地电化学集成技术在青藏高原干旱荒漠区及冻土覆盖区寻找隐伏金属矿研究及找矿预测”(编号:青国土资矿(2010)207)资助.

Comparative Study on the Methods of Soil Ionic Conductivity and Geo-electrochemical for Concealed Gold Deposit in the Permafrost Region of Qinghai-Tibet Plateau

QIU Wei1,2,3,WANG Wen4,REN Erfeng5   

  1. 1.Qinghai Institute of Geological Survey,Xining   810012,Qinghai,China;
    2.Qinghai Institute of Geology and Mineral Resources,Xining   810012,Qinghai,China;
    3.Qinghai Province Key Laboratory of Geological Processes and Mineral Resources of Northern Qinghai-Tibetan Plateau,Xining   810012,Qinghai,China;
    4.No.5 Qinghai Exploration Institute of Geology and Mineral Resources,Xining   810001,Qinghai,China;
    5.Qinghai Institute of Salt Lakes,Chinese Academy of Sciences,Xining   810008,Qinghai,China
  • Received:2012-03-09 Revised:2012-05-06 Online:2012-06-28 Published:2012-11-12

摘要:

青藏高原冻土区找寻隐伏矿床的难度很大,选用传统的物化探技术手段并未取得找矿突破。本次研究采用土壤离子电导率和地电提取测量法在高寒区--扎家同哪金矿区开展隐伏矿找矿预测工作,在未知区圈定了3处找矿远景靶区,其中,Ⅰ类找矿靶区异常规模较大,位于测区中部,成矿条件好,应作为下一步工作的重点勘探区。此外,选择研究区4号勘探线作为已知剖面,开展了方法有效性和可行性试验研究,结果显示,已知矿体上方有明显的土壤离子电导率异常地电提取Au元素异常,进一步证实这2种方法组合在青藏高原冻土区的找矿应用效果显著,值得推广应用。

关键词: 土壤离子电导率, 地电提取法, 隐伏金矿, 青藏高原冻土区

Abstract:

It is very difficult to find concealed deposits in Qinghai-Tibet plateau permafrost zone,prospecting breakthrough is not achieved using conventional geophysical and geochemical techniques.By carring out concealed ore prospecting forecasting in Zhajiatongna gold ore field in extremely friged zones using soil ionic conductivity and geo-electro-chemical extraction method,we delineate three prospecting target in unknown area.The abnormal scale of No.Ⅰ prospecting target located in the middle of survey area is large and has good ore-forming conditions, should be the key exploration area in future work.Choosing No.4 exploration line as the known profile to theck method effectiveness and feasibility,the results show that there are obvious soil ionic conductivity anomaly and geo-electro-chemical extraction Au element anomalies,this further confirm that the prospecting application effective of these two kinds of methods in Qinghai-Tibet plateau permafrost zone are obvious,so it should be widely applied.

Key words: Soil ionic conductivity, Geo-electrochemical method, Concealed gold deposit, Permafrost Region of Qinghai-Tibet Plateau

中图分类号: 

  • P618.51

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