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Information Journal Paper

Title

3D INVERSION OF MAGNETIC DATA THROUGH WAVELET BASED REGULARIZATION METHOD

Pages

  1-18

Abstract

 This study deals with the 3D recovering of magnetic susceptibility model by incorporating the sparsity-based constraints in the inversion algorithm. For this purpose, the area under prospect was divided into a large number of rectangular prisms in a mesh with unknown susceptibilities. Tikhonov cost functions with two sparsity functions were used to recover the smooth parts as well as the sharp boundaries of model parameters. A pre-selected basis namely wavelet can recover the region of smooth behaviour of susceptibility distribution while Haar or finite-difference (FD) domains yield a solution with rough boundaries. Therefore, a regularizer function which can benefit from the advantages of both wavelets and Haar/FD operators in representation of the 3D magnetic susceptibility distributionwas chosen as a candidate for modeling magnetic anomalies. The optimum wavelet and parameter b which controls the weight of the two sparsifying operators were also considered. The algorithm assumed that there was no remanent magnetization and observed that magnetometry data represent only induced magnetization effect. The proposed approach is applied to a noise-corrupted synthetic data in order to demonstrate its suitability for 3D inversion of magnetic data. On obtaining satisfactory results, a case study pertaining to the ground based measurement of MAGNETIC ANOMALY over a porphyry-Cu deposit located in Kerman providence of Iran. Now Chun deposit was presented to be 3D inverted. The low susceptibility in the constructed model coincides with the known location of copper ore mineralization.

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    APA: Copy

    ABEDI, MAYSAM, SIAHKOOHI, HAMID REZA, GHOLAMI, ALI, & NOROUZI, GHOLAM HOSSAIN. (2015). 3D INVERSION OF MAGNETIC DATA THROUGH WAVELET BASED REGULARIZATION METHOD. INTERNATIONAL JOURNAL OF MINING AND GEO-ENGINEERING, 49(1), 1-18. SID. https://sid.ir/paper/329921/en

    Vancouver: Copy

    ABEDI MAYSAM, SIAHKOOHI HAMID REZA, GHOLAMI ALI, NOROUZI GHOLAM HOSSAIN. 3D INVERSION OF MAGNETIC DATA THROUGH WAVELET BASED REGULARIZATION METHOD. INTERNATIONAL JOURNAL OF MINING AND GEO-ENGINEERING[Internet]. 2015;49(1):1-18. Available from: https://sid.ir/paper/329921/en

    IEEE: Copy

    MAYSAM ABEDI, HAMID REZA SIAHKOOHI, ALI GHOLAMI, and GHOLAM HOSSAIN NOROUZI, “3D INVERSION OF MAGNETIC DATA THROUGH WAVELET BASED REGULARIZATION METHOD,” INTERNATIONAL JOURNAL OF MINING AND GEO-ENGINEERING, vol. 49, no. 1, pp. 1–18, 2015, [Online]. Available: https://sid.ir/paper/329921/en

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