Results 11 to 20 of about 9,084 (144)

Constraints on the structure of the oceanic crust of the Tamu Massif by teleseismic P-wave coda autocorrelation

Frontiers in Earth Science, 2023
The Tamu Massif, considered the biggest single volcano on Earth, was formed by the accumulation of enormous amounts of magma erupting to the surface. It is the largest and oldest seamount in Shatsky Rise, which is the third largest oceanic plateau on ...
Fucong Xu, Fucong Xu, Shaoping Lu, Shaoping Lu, Chen Cai, Chen Cai, Han Chen, Han Chen, Shaozhe Dong, Shaozhe Dong   +9 more
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Three-dimensional topographic relief of the oceanic crust may control the occurrence of shallow very-low-frequency earthquakes in the Nankai Trough off Kumano

Earth, Planets and Space, 2020
To explore a local relationship between geological structures and the occurrence of very-low-frequency earthquakes (VLFEs), a particular class of slow earthquakes with characteristic periods of 10–100 s, we investigated three-dimensional (3D) structural ...
Kazuya Shiraishi, Yasuhiro Yamada, Masaru Nakano, Masataka Kinoshita, Gaku Kimura   +4 more
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Regional Geophysics of the Caribbean and Northern South America: Implications for Tectonics

Geochemistry, Geophysics, Geosystems, 2022
The Caribbean plate is an enclosed oceanic basin whose formation and evolution are controversial. In the most commonly accepted model, the Caribbean plate is mainly composed of the Caribbean Large Igneous Province (CLIP) and the buoyant characteristic of
Carol V. Barrera‐Lopez, Walter D. Mooney, Mikhail K. Kaban   +2 more
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Visualization of attenuation structure and faults in incoming oceanic crust of the Nankai Trough using seismic attenuation profiling

Earth, Planets and Space, 2018
Seismic attenuation properties were tested as indicators of lateral variation in geological structures and detection of faults within poorly reflective oceanic crust, on a seismic survey line along the Nankai Trough.
Tetsuro Tsuru, Jin-Oh Park, Tetsuo No, Yukari Kido, Kazuo Nakahigashi   +4 more
doaj   +1 more source

Tracing Recycled Crustal Materials in the Subcontinental Lithospheric Mantle Using Thallium Isotopes

Geophysical Research Letters, 2022
Here we report the first set of thallium (Tl) isotope data in alkaline rocks from the North China Craton to constrain the nature of recycled materials in the metasomatized subcontinental lithospheric mantle.
Qing‐Feng Mei, Xinming Chen, Jin‐Hui Yang, Yu‐Sheng Zhu, Jeremy D. Owens   +4 more
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Ridge Jumps and Mantle Exhumation in Back-Arc Basins

Geosciences, 2021
Back-arc basins in continental settings can develop into oceanic basins, when extension lasts long enough to break up the continental lithosphere and allow mantle melting that generates new oceanic crust.
Valentina Magni, John Naliboff, Manel Prada, Carmen Gaina   +3 more
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Formation of an Al‐Rich Niccolite‐Type Silica in Subducted Oceanic Crust: Implications for Water Transport to the Deep Lower Mantle

Geophysical Research Letters, 2022
Subducted oceanic crust is enriched in free silica. Although being one of the silica polymorphs at lower‐mantle pressures, niccolite‐type phase (Nt‐phase) has not been documented in multicomponent metabasaltic or metasediment compositions relevant to ...
Lu Liu, Hongsheng Yuan, Yao Yao, Ziqiang Yang, Federico Aiace Gorelli, Nico Giordano, Lixin He, Eiji Ohtani, Li Zhang   +8 more
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MODELING OF MOVING DEFORMABLE CONTINENTS BY ACTIVE TRACERS: CLOSING AND OPENING OF OCEANS, RECIRCULATION OF OCEANIC CRUST

Геодинамика и тектонофизика, 2018
The evolution of the ‘mantle – moving deformable continents’ system has been studied by numerical experiments. The continents move self-consistently with the mantle flows of thermo-compositional convection.
A. M. Bobrov, A. A. Baranov
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A New Model for the Evolution of Oceanic Transform Faults Based on 3D Broadband Seismic Observations From São Tomé and Príncipe in the Eastern Gulf of Guinea

Geochemistry, Geophysics, Geosystems, 2022
Oceanic Transform Faults are one of manifestations of the three major plate boundaries and a key tectonic feature of oceanic crust. They are broadly considered to accommodate strike‐slip displacement along simple vertical faults and to be largely without
Myron F. H. Thomas, Christian Heine, Jimmy vanItterbeeck, Ilya Ostanin, Andrey Seregin, Michael Spaak, Tamara Morales, Tess Oude Essink   +7 more
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Continental Growth and Recycling in Convergent Orogens with Large Turbidite Fans on Oceanic Crust

Geosciences, 2013
Convergent plate margins where large turbidite fans with slivers of oceanic basement are accreted to continents represent important sites of continental crustal growth and recycling.
Ben D. Goscombe, David A. Foster
doaj   +1 more source