發(fā)布時間：2018-10-18 07:25

【摘要】：在實際大地電磁測深數(shù)據(jù)反演過程中,為了得到更加清晰的電性單元分界面,傳統(tǒng)的Occam平滑反演方法遇到了挑戰(zhàn),本文討論了sharp boundary inversion(SBI)反演的理論及其應用.通過模型試算,對比Occam和SBI的反演效果,證明了SBI反演劃分層狀介質(zhì)的可靠性.本文對臨江市六道溝地區(qū)實測可控源音頻大地電磁測深(CSAMT)數(shù)據(jù)進行了全區(qū)視電阻率轉(zhuǎn)換,然后對全區(qū)視電阻率進行Occam反演和SBI反演.最后對比已有地質(zhì)資料,表明SBI反演能夠用于CSAMT數(shù)據(jù)的處理中.
[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.
【作者單位】： 吉林大學地球探測科學與技術學院;
【基金】：中國地質(zhì)調(diào)查局項目吉黑東部綜合找礦方法研究(201301-060-004)資助
【分類號】：P631.325
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本文編號：2278413