The gravitational signature of the dynamics of oceanization in the Gulf …
2023年12月20日 · Focusing on the central sector of the Gulf of Aden, the map of the Geodetic Residual Gravitation (Fig. 2, panel a) shows a dominant regional EW feature, with values of δg ranging approximately from −10 to 30 mGal in the oceanic …
Structure and evolution of the eastern Gulf of Aden: insights from ...
2006年6月1日 · In the eastern Gulf of Aden, the gravity and magnetic studies show that the south OCT displays larger wavelength and lower amplitude magnetic anomalies, and a thicker crust than the north OCT.
Tectonics and seismicity of the Gulf of Aden: Contributions of …
2024年10月1日 · In this work, we focus on the evaluation and application of different filters to both gravity and magnetic data of the Gulf of Aden. Several edge filters were applied to three theoretical gravity models, i.e., the positive anomalies, positive and negative density contrast, and in the third model high amplitude noise was applied to the ...
The gravity field of the Red Sea and East Africa - ScienceDirect
1991年11月20日 · Rvaluation of all gravity data from the Red Sea, the Gulf of Aden and East Africa permitted the compilation of a new Bouguer anomaly map. The intensity of the gravity field and its regional pattern correlate closely with the topographic features of the region.
Structure and evolution of the eastern Gulf of Aden: insights from ...
Abstract: Magnetic and gravity data gathered during the Encens-Sheba cruise (2000 June) in the eastern Gulf of Aden provide insights on the structural evolution of segmentation from rifted margins to incipient seafloor spreading. In this study, we document the conjugate margins asymmetry, confirm the location of the ocean–continent transition ...
Margin-to-Margin Seafloor Spreading in the Eastern Gulf of Aden…
2021年7月21日 · The Eastern Gulf of Aden is imaged from the northern Oman margin, across the active Sheba mid-oceanic ridge, to the conjugate southern Socotra margin . Each of the seven seismic transects images more than 400 km of oceanic basement and is associated with gravity and magnetic data to reveal the evolution and variability of the oceanic basement ...
Structure and evolution of the eastern Gulf of Aden: insights from ...
2006年5月31日 · In the OCT, gravity models indicate highly thinned crust while magnetic data indicate presence of non-oceanic high-amplitude magnetic anomalies where syn-rift sediments are not observed. Thus, the OCT could be made of ultra-stretched continental crust intruded by magmatic bodies.
Volcanism, jump and propagation on the Sheba ridge, eastern Gulf …
2010年2月1日 · The rifting between Arabia and Somalia, which started around 35 Ma, was followed by oceanic accretion from at least 17.6 Ma leading to the formation of the present-day Gulf of Aden. Bathymetric, gravity and magnetic data from the Encens-Sheba cruise are used to constrain the structure and segmentation of the oceanic basin separating the ...
least three distinct slopes. Changes in the characters of the gravity and magnetic anomalies are noticed corresponding to the changes in slopes of the basement. In accord with recent ideas on the formation and cooling of oceanic lithosphere, it seems un-likely that the Gulf of Aden has evolved by continuous sea floor spreading and more
crustal structure of the north-eastern Gulf of Aden continental …
The wide-angle seismic (WAS) and gravity data of the Encens survey allow us to determine the deep crustal structure of the north-eastern Gulf of Aden non-volcanic passive margin. The Gulf of Aden is a young oceanic basin that began to open at least 17.6 Ma ago.
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