An improved Tilt Derivative Method Combined with the MMTs E Using in Fracture System Identification for the SWIR 49° E Area

Qiuge Wang; Shuangxi Zhang; Chao Chen; Haoran Wang; Zhikui Guo; Duan Li

doi:10.1071/ASEG2015ab284

24th International Geophysical Conference and Exhibition – Geophysics and Geology Together for Discovery

ISSN: 2202-0586
E-ISSN:

oa An improved Tilt Derivative Method Combined with the MMTs E Using in Fracture System Identification for the SWIR 49° E Area
Authors Qiuge Wang^a, Shuangxi Zhang^b, Chao Chen^c, Haoran Wang^d, Zhikui Guo^e and Duan Li^f
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^a China Uni. of Geosciences(Wuhan), 388 Lumo Road, Hongshan District Wuhan, 430074, , P. R. China, [email protected] ^b China Uni. of Geosciences(Wuhan), 388 Lumo Road, Hongshan District Wuhan, 430074, , P. R. China, [email protected] ^c China Uni. of Geosciences(Wuhan), Hubei Subsurface Multiscale Imaging Lab 388 Lumo Road, Hongshan District Wuhan, 430074, , P. R. China, [email protected] ^d China Uni. of Geosciences (Wuhan), 388 Lumo Road, Hongshan District Wuhan, 430074, , P. R. China, [email protected] ^e China Uni. of Geosciences(Wuhan), 388 Lumo Road, Hongshan District Wuhan, 430074, , P. R. China, [email protected] ^f China Uni. of Geosciences(Wuhan), 388 Lumo Road, Hongshan District Wuhan, 430074, , P. R. China, [email protected]
Publisher: Australian Society of Exploration Geophysicists
Source: ASEG Extended Abstracts, Volume 2015, Issue 24th International Geophysical Conference and Exhibition – Geophysics and Geology Together for Discovery, Dec 2015, p. 1 - 4
DOI: https://doi.org/10.1071/ASEG2015ab284
- Published online: 01 Dec 2015

Abstract

Seafioor hydrothermal sulfide deposits occurring at plate boundaries and convergent plate boundaries, are mainly concentrated in extensional tectonic belt with abundant fault structure, which is always correlated with the severe potential field signals changes. Considering the common magnetic anomaly components cannot reflect the field sources correctly as magnetic field around the ocean ridges is extremely infected by the residual magnetism, based on the obvious superiority of the magnitude magnetic transforms (MMTs) centricity and low dependence on the magnetization vector direction, we used the MMTs for geological boundaries identification. We improved the Tilt derivative method to indentify the boundaries of the geological structure on the basis of both the MMTs E and R, and find that the MMTs E combined with the improved Tilt derivative method performs better . We applicant this method in the 49° E zone (48°E~52°E , -39°S~-37°S) of the Southwest India Ridge (SWIR), with the help of the 2-arc minute high resolution magnetic model EMAG2, the fault system distribution of the study area was obtained and described primarily.

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References

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/content/journals/10.1071/ASEG2015ab284

Article Type: Research Article

Keyword(s): improved Tilt derivative method; magnitude magnetic transform; MMTs E; Southwest India Ridge

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oa An improved Tilt Derivative Method Combined with the MMTs E Using in Fracture System Identification for the SWIR 49° E Area

Abstract

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