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李卫强,李文尧,于常青. 一种确定条带状激电异常场源体产状的向量法[J]. 科学技术与工程, 2019, 19(35): 41-45.
LI Wei-qiang,YU Chang-qing.A Vector Method for Determining the Occurrence of Banded Induced Polarization Anomaly Source[J].Science Technology and Engineering,2019,19(35):41-45.
一种确定条带状激电异常场源体产状的向量法
A Vector Method for Determining the Occurrence of Banded Induced Polarization Anomaly Source
投稿时间:2019-03-15  修订日期:2019-06-19
DOI:
中文关键词:  激电中梯法? IP? 条带状激电异常 向量? 板状场源体产状
英文关键词:induced electric medium gradient method IP banded induced polarization anomaly vector occurrence of tabular source
基金项目:国家重点研发计划(2016YFC060110602)资助。
        
作者单位
李卫强 昆明理工大学国土资源工程学院
李文尧 昆明理工大学国土资源工程学院
于常青 中国地质科学院地质研究所
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中文摘要:
      本文提出一种确定条带状激电异常场源体产状的向量法,用于激电中梯法在野外准确快捷地确定板状场源体的产状。通过激电中梯扫面获得激电异常,结合地质资料确定场源体是板状体,选择三条中梯剖面,提取剖面上板状体中心平面的三个顶端坐标,三个坐标点如果不在一条直线则可以确定中心平面,利用空间解析几何法计算出中心平面的法向量,根据法向量中的实数对确定中心平面的产状。结果表明:该方法与传统的利用激发极化法确定板状体产状的方法相比,具有准确快捷,不需要进行复杂的反演,产状计算结果唯一等优点。本方法在云南省孟连铜矿区应用效果良好,按照该方法计算出的板状场源体的产状和坑道验证的产状基本一致。可见该方法是有效的、实用的。
英文摘要:
      In this paper, a vector method for determining the occurrence of strip induced polarization anomalous field source is presented. It is used to determine the occurrence of plate induced polarization anomalous field source accurately and quickly in the field. The induced polarization anomaly is obtained by induced electric medium gradient method, and according to the geological data, it is determined that the source is a tabular body. 3 sections are selected and 3 top coordinates of the central plane of the tabular body in the section are extracted. If the 3 coordinates are not in a straight line, the center plane can be determined. The normal vector of the center plane is calculated by space analytic geometry. According to the real number in the normal vector, we determine the occurrence of the central plane. The result shows that the method has the advantages of accuracy, rapidity and no need for data inversion,compared with the traditional method of determining the occurrence of plate by induced polarization method, The method is applied well in a copper mine area of Yunnan Province, and the occurrence of the tabular source calculated by this method is basically the same as that of the tunnel verification. It is concluded that the method is effective and practical.
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