CAJ | 학술논문

面对大深度和三维探测，标量 CSAM T （controlled source audio frequency magnetotellurics）已显力不从心，而张量 CSAM T 正逐渐成为研究热点。在前人研究基础上，笔者就张量 CSAM T 数据处理方面提出 Mohr 圆分析和传统坐标旋转两种处理技术，并首次创新性地使用我国自主研发的综合电法仪开展了张量 CSAM T 示范应用。结果表明：Mohr 圆分析和传统坐标旋转法相结合应用效果良好，可定性挖掘地下地质体的纵向和横向构造特征，主轴方位的视电阻率和阻抗相位与目标体对应良好，并且电阻率反演结果与钻孔等地质资料综合分析对建立试验区的地质地球物理模型是有益的。
면대대심도화삼유탐측，표량 CSAM T （controlled source audio frequency magnetotellurics）이현력불종심，이장량 CSAM T 정축점성위연구열점。재전인연구기출상，필자취장량 CSAM T 수거처리방면제출 Mohr 원분석화전통좌표선전량충처리기술，병수차창신성지사용아국자주연발적종합전법의개전료장량 CSAM T 시범응용。결과표명：Mohr 원분석화전통좌표선전법상결합응용효과량호，가정성알굴지하지질체적종향화횡향구조특정，주축방위적시전조솔화조항상위여목표체대응량호，병차전조솔반연결과여찬공등지질자료종합분석대건립시험구적지질지구물리모형시유익적。
Scalar CASM T is inadequate to the face of great depth and three‐dimensional detection ;while tensor CSAM T is becoming a research focus .On the basis of previous studies ,two kinds of tensor CSAM T processing technologies are proposed ;which are Mohr analysis and the traditional coordinate rotation .By innovative use of the integrated electrical instruments developed in China for the first time , we demonstrate the application of tensor CSAM T .The results show that through Mohr analysis and traditional coordinate rotation ,the vertical and horizontal structure of underground geological bodies can be qualitatively analyzed ; apparent resistivity and impedance phase in principal axis orientation correspond with the targets ; and the comprehensive analysis of resistivity inversion and drilling information are profitable for the establishment of geological‐geophysical models on the test area .