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- W2322087361 abstract "Inversion of magnetic data is frequently used for geo-structural investigations. Long airborne flight lines and dense sampling of magnetic field result to very large data sets which in 3D point of view becomes very difficult to be inverted by non-smooth algorithms. In this case, 2D inversion of individual lines can provide good images of subsurface structures along the profiles. In this paper, we are looking for a 2D distribution of magnetic property inside the earth, so divide the area under the profile into a large number of infinitely long horizontal prisms with square cross-section and unknown susceptibility. A fast and efficient non-smooth algorithm based on edge-preserving penalty functions and discrete cosine transform (DCT) is proposed for 2D inversion of magnetic data. A suitable edge-preserving penalty function is used to render the solution unique and stable and to prevent sharp transitions from being penalized. Finally, we inverted a long airborne magnetic flight data in southeast Iran which intersects Makran subduction zone and its related geological structures. Our result shows a deep oceanic crust remnant, beneath the sedimentary cover located at Juzmurian depression, which makes a prominent role in reconstructing whole geological history of the area" @default.
- W2322087361 created "2016-06-24" @default.
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- W2322087361 date "2010-01-01" @default.
- W2322087361 modified "2023-09-28" @default.
- W2322087361 title "Edge-preserved 2D Inversion of Magnetic Data – An Application to Makran Arc-trench Complex" @default.
- W2322087361 doi "https://doi.org/10.3997/2214-4609.201401314" @default.
- W2322087361 hasPublicationYear "2010" @default.
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