梯度源井地电位三维正演模拟与分析
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Release time:2020-08-08 Affiliation of Author(s):中南大学地球科学与信息物理学院 Teaching and Research Group:中南大学应用地球物理系 Journal:中南大学学报(自然科学版) Place of Publication:中国 Funded by:41174102；41074085；40804027；41374118；CX2010B052 Key Words:梯度场源；井地电位；三维有限元；顶低埋深；异常分析 Abstract:利用梯度场源作为井地电位的激励电流源,采用异常电位法消除场源附近的奇异性,给出电导率连续变化的井地电位异常电位法三维有限元数值模拟的计算方法。利用编制的梯度场源井地电位三维数值模拟程序对低阻隐伏矿、高阻隐伏矿以及低高阻双层矿体3种地电模型进行模拟计算,得到梯度场源激励下的地表异常响应梯度差的极大极小值曲线和地表固定点的异常电位变化曲线。研究结果表明：梯度场源异常响应的2种曲线能准确判定低、高阻隐伏矿异常体的顶低埋深,亦能有效区分双层低高阻体的顶底部埋深。 Co-author:戴前伟, 刘海飞, 冯德山 First Author:陈德鹏 Indexed by:Applied Research Document Code:1672-7207(2014)01-0150-07 Discipline:地质资源与地质工程 Document Type:J Volume:45 Issue:1 Page Number:150-156 ISSN No.:1672-7207 Translation or Not:no CN No.:43-1426/N Date of Publication:2014-01-26 Included Journals:EI -
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