中国有色金属学报
中國有色金屬學報
중국유색금속학보
THE CHINESE JOURNAL OF NONFERROUS METALS
2013年
9期
2340-2350
,共11页
曹创华%柳建新%童孝忠%谢维%佟铁钢%高大维
曹創華%柳建新%童孝忠%謝維%佟鐵鋼%高大維
조창화%류건신%동효충%사유%동철강%고대유
可控源音频大地电磁测深%逐级反演%精度%东昆仑
可控源音頻大地電磁測深%逐級反縯%精度%東昆崙
가공원음빈대지전자측심%축급반연%정도%동곤륜
controlled source audio frequency magnetotelluric sounding%progressively inversion%accuracy%east Kunlun
对深部探测地球物理找矿领域中最为常用的CSAMT法的反演技术进行探索。首先利用一维Bostick反演方法进行野外实测数据的反演;由于 Bostick 反演结果较为准确地确定了探测深度,然后将一维反演断面信息作为二维反演的初始模型断面,利用Occam反演方法进行正则化反演;再进行地质解释,间接地提高了地电断面初始模型的正确度;最后结合东昆仑地区某Cu、Pb、Zn多金属矿CSAMT实际勘察结果,分析总结这种数据处理方法的认知。结果表明,逐级反演技术提高了勘察效果,为今后勘察提供了有益的经验。
對深部探測地毬物理找礦領域中最為常用的CSAMT法的反縯技術進行探索。首先利用一維Bostick反縯方法進行野外實測數據的反縯;由于 Bostick 反縯結果較為準確地確定瞭探測深度,然後將一維反縯斷麵信息作為二維反縯的初始模型斷麵,利用Occam反縯方法進行正則化反縯;再進行地質解釋,間接地提高瞭地電斷麵初始模型的正確度;最後結閤東昆崙地區某Cu、Pb、Zn多金屬礦CSAMT實際勘察結果,分析總結這種數據處理方法的認知。結果錶明,逐級反縯技術提高瞭勘察效果,為今後勘察提供瞭有益的經驗。
대심부탐측지구물리조광영역중최위상용적CSAMT법적반연기술진행탐색。수선이용일유Bostick반연방법진행야외실측수거적반연;유우 Bostick 반연결과교위준학지학정료탐측심도,연후장일유반연단면신식작위이유반연적초시모형단면,이용Occam반연방법진행정칙화반연;재진행지질해석,간접지제고료지전단면초시모형적정학도;최후결합동곤륜지구모Cu、Pb、Zn다금속광CSAMT실제감찰결과,분석총결저충수거처리방법적인지。결과표명,축급반연기술제고료감찰효과,위금후감찰제공료유익적경험。
The inversion technique of CSAMT method which is widely used in the field of geophysical prospecting was investigated. Firstly, one-dimensional Bostick inversion method was used in the inversion of data measured in the field;secondly, the cross-section of one-dimensional inversion was taken as an initial cross-section model of the two-dimensional inversion since the probing depth determined by Bostick inversion is relatively accurate, and we Occam inversion method was used for positive inversion;thirdly, geological interpretation was concluded, which improves the accuracy of the initial geoelectric section model indirectly; at last, this data processing method was analyzed and a conclusion was drown while integrating the CSAMT survey results of eastern Kunlun Cu, Pb and Zn polymetallic ore. The results show that step by step inversion technique contributes directly to the survey result, which provides useful experience for future investigation.