Abstract
We present preliminary results of the geohistorical and paleomagnetic analysis of marine magnetic anomalies in the northwestern Indian Ocean. The original data consisting of the series of magnetic profiles in the Arabian and Eastern Somalian basins are studied and the anomalies corresponding to the chrons C24–C26 are identified. These anomalies have arisen in Paleocene- Early Eocene Age. At this time we have the last stage of Gondvana continent fragmentation consisting of the separation of the India from the Seychelles continent and the drift of the India to the north. Interval half spreading rates estimated along the magnetic profiles in the Arabian and Somalian basins. The asymmetries of the crustal accretion has been revealed in the Arabian and Somalian basins. Also new estimates of paleomagnetic pole locations derived from the skewness of marine magnetic anomalies are obtained.
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Acknowledgements
This work was supported by the Russia Foundation of Basic Research grants 15-05-06292. Figures were drafted using GMT software (Wessel and Smith 1991).
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Ivanov, S.A., Merkuriev, S.A. (2019). Preliminary Results of the Geohistorical and Paleomagnetic Analysis of Marine Magnetic Anomalies in the Northwestern Indian Ocean. In: Nurgaliev, D., Shcherbakov, V., Kosterov, A., Spassov, S. (eds) Recent Advances in Rock Magnetism, Environmental Magnetism and Paleomagnetism. Springer Geophysics. Springer, Cham. https://doi.org/10.1007/978-3-319-90437-5_32
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