Results 1 to 10 of about 5,282 (167)

Spatial and Temporal Variations in Crustal Structure in the Eurasian Basin

Journal of Marine Science and Engineering, 2022
To understand the tectonic–magmatic history, crustal structure and crustal accretion mode of the Eurasian Basin in the Arctic, we calculated the crustal thickness, residual bathymetry (RB) and non-isostatic topography of the Eurasian Basin by using the ...
Lihong Zhao, Tao Zhang, Zilong Ling, Mujie Li, Pengyao Zhi, Renwei Ding, Chaoyang Li   +6 more
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Crustal velocity structure in the South Yellow Sea revealed by the joint tomographic inversion of reflected and refracted seismic waves

Frontiers in Earth Science, 2023
The crustal velocity structure in the South Yellow Sea (SYS) Basin is crucial for understanding the basin’s geological structure and evolution. OBS (ocean-bottom station) data from the OBS2013 line have been used to determine the crustal velocity ...
Fei Ma, Fanghui Hou, Fanghui Hou, Tongyu Li, Zhiqiang Wu, Zhiqiang Wu, Jianzhong Zhang, Jianzhong Zhang   +7 more
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Gravity inversion constrained by OBS receiver function reveals crustal structure in Ryukyu Trench

Frontiers in Earth Science, 2023
The Ryukyu Trench is located in the northern Philippine Sea. The subduction of the Philippine Sea Plate to the Eurasia Plate along the Ryukyu Trench in the NNW direction leads to extremely complex tectonic processes such as subduction, collision ...
Tingwei Yang, Tingwei Yang, Ya Xu, Ya Xu, Ya Xu, Nanqiao Du, Tao Xu, Tao Xu, Danping Cao, Fangzhou Nan, Fangzhou Nan, Fangzhou Nan, Wei Chu, Ce Liang, Tianyao Hao, Tianyao Hao, Tianyao Hao   +16 more
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Crustal structure of the Qiangtang and Songpan-Ganzi terranes (eastern Tibet) from the 2-D normalized full gradient of gravity anomaly

Geodesy and Geodynamics, 2022
Numerous geophysical studies have revealed the lithospheric structure of the Qiangtang and the Songpan-Ganzi terranes in the eastern Tibetan Plateau. However, crust–mantle evolution and crustal response to the Indian lithospheric subduction are still ...
Songbai Xuan, Chongyang Shen
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Crustal architecture of a metallogenic belt and ophiolite belt: implications for mineral genesis and emplacement from 3-D electrical resistivity models (Bayankhongor area, Mongolia)

Earth, Planets and Space, 2021
Crustal architecture strongly influences the development and emplacement of mineral zones. In this study, we image the crustal structure beneath a metallogenic belt and its surroundings in the Bayankhongor area of central Mongolia.
Matthew J. Comeau, Michael Becken, Alexey V. Kuvshinov, Sodnomsambuu Demberel   +3 more
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The crustal structure of the Madagascar Ridge [PDF]

Geophysical Journal International, 1981
Summary. The Madagascar Ridge is an elongated aseismic plateau in the southwest Indian Ocean, which separates two ocean basins of mid-to late Cretaceous age. From interpretations of a reversed refraction line on the ridge and a continuous gravity profile across it we conclude that it formed during the Cretaceous as thickened oceanic crust, at a mid ...
Sinha, M, Louden, K, Parsons, B
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Surface waves and crustal structure on Mars

Science, 2022
We detected surface waves from two meteorite impacts on Mars. By measuring group velocity dispersion along the impact-lander path, we obtained a direct constraint on crustal structure away from the InSight lander. The crust north of the equatorial dichotomy had a shear wave velocity of approximately 3.2 kilometers per second in the 5- to 30-kilometer ...
Kim, D., Banerdt, W., Ceylan, S., Giardini, D., Lekić, V., Lognonné, Philippe, Beghein, C., Beucler, É., Carrasco, S., Charalambous, C., Clinton, J., Drilleau, M., Durán, C., Golombek, M., Joshi, R., Khan, A., Knapmeyer-Endrun, B., Li, J., Maguire, R., Pike, W., Samuel, H., Schimmel, M., Schmerr, N., Stähler, S., Stutzmann, E., Wieczorek, M., Xu, Z., Batov, A., Bozdag, E., Dahmen, N., Davis, P., Gudkova, T., Horleston, A., Huang, Q., Kawamura, T., King, S., Mclennan, S., Nimmo, F., Plasman, M., Plesa, A., Stepanova, I., Weidner, E., Zenhäusern, G., Daubar, I., Fernando, B., Garcia, R., Posiolova, L., Panning, M.   +47 more
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Crustal Structure and Dynamics of Botswana [PDF]

Journal of Geophysical Research: Solid Earth, 2018
AbstractWe present the first nationwide crustal thickness and Vp/Vs maps for Botswana based on the analysis of new P wave receiver functions of NARS‐Botswana network integrated with previous receiver function results in Botswana. Using H‐K analysis, we found crustal thickness values ranging from 34 km for the Okavango Rift Zone to 49 km at the border ...
Islam Fadel, Mark van der Meijde, Hanneke Paulssen   +2 more
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Reference seismic crustal model of the Dinarides [PDF]

Solid Earth, 2023
Continental collision zones are structurally one of the most heterogeneous areas intermixing various different units within a relatively small space. A good example of this is the Dinarides, a mountain chain situated in the central Mediterranean, where ...
K. Zailac, B. Matoš, I. Vlahović, J. Stipčević   +3 more
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Upper Crustal Structure of Superfast‐Spread Oceanic Crust Exposed at the Pito Deep Rift: Implications for Seafloor Spreading

Geochemistry, Geophysics, Geosystems, 2023
A tectonic window into the upper 2,000 m of oceanic crust generated at the superfast spreading (∼142 mm/yr) southern East Pacific Rise exposes a continuous layered structure of basaltic lavas and sheeted dikes over gabbroic rocks.
J. A. Karson, L. A. Chutas, N. W. Hayman, R. N. Hey, A. J. Horst, S. D. Hurst, E. M. Klein, D. F. Naar, R. J. Varga   +8 more
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