尖锐边界反演在临江市六道沟可控源音频大地电磁测深数据反演中的应用
发布时间：2018-10-18 07:25
【摘要】：在实际大地电磁测深数据反演过程中,为了得到更加清晰的电性单元分界面,传统的Occam平滑反演方法遇到了挑战,本文讨论了sharp boundary inversion(SBI)反演的理论及其应用.通过模型试算,对比Occam和SBI的反演效果,证明了SBI反演划分层状介质的可靠性.本文对临江市六道沟地区实测可控源音频大地电磁测深(CSAMT)数据进行了全区视电阻率转换,然后对全区视电阻率进行Occam反演和SBI反演.最后对比已有地质资料,表明SBI反演能够用于CSAMT数据的处理中.
[Abstract]:In the process of inversion of actual magnetotelluric sounding data, in order to obtain a clearer interface of electrical units, the traditional Occam smooth inversion method is challenged. The theory of sharp boundary inversion (SBI) inversion and its application are discussed in this paper. The reliability of SBI inversion for stratified media is proved by comparing the inversion results of Occam and SBI. In this paper, the (CSAMT) data of controlled source audio frequency magnetotelluric sounding (CSAMT) in Liudaogou area of Linjiang City have been transformed into the whole area apparent resistivity, and then the Occam inversion and SBI inversion of the whole area apparent resistivity have been carried out. Finally, the existing geological data are compared, which shows that SBI inversion can be used in the processing of CSAMT data.
【作者单位】： 吉林大学地球探测科学与技术学院;
【基金】：中国地质调查局项目吉黑东部综合找矿方法研究(201301-060-004)资助
【分类号】：P631.325
，
本文编号：2278413
[Abstract]:In the process of inversion of actual magnetotelluric sounding data, in order to obtain a clearer interface of electrical units, the traditional Occam smooth inversion method is challenged. The theory of sharp boundary inversion (SBI) inversion and its application are discussed in this paper. The reliability of SBI inversion for stratified media is proved by comparing the inversion results of Occam and SBI. In this paper, the (CSAMT) data of controlled source audio frequency magnetotelluric sounding (CSAMT) in Liudaogou area of Linjiang City have been transformed into the whole area apparent resistivity, and then the Occam inversion and SBI inversion of the whole area apparent resistivity have been carried out. Finally, the existing geological data are compared, which shows that SBI inversion can be used in the processing of CSAMT data.
【作者单位】： 吉林大学地球探测科学与技术学院;
【基金】：中国地质调查局项目吉黑东部综合找矿方法研究(201301-060-004)资助
【分类号】：P631.325
，
本文编号：2278413
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