Results 1 to 10 of about 3,728 (118)

Transition from continental rifting to oceanic spreading in the northern Red Sea area [PDF]

Scientific Reports, 2021
Lithosphere extension, which plays an essential role in plate tectonics, occurs both in continents (as rift systems) and oceans (spreading along mid-oceanic ridges).
Sami El Khrepy, Ivan Koulakov, Taras Gerya, Nassir Al-Arifi, Mamdouh S. Alajmi, Ayman N. Qadrouh   +5 more
doaj   +2 more sources

Persisting influence of continental inheritance on early oceanic spreading [PDF]

Scientific Reports
Formation of new lithosphere at mid-oceanic ridges occurs through magmatic crustal accretion and cooling of the asthenosphere, and is essentially controlled by the spreading-rate, ridge segmentation, and eventual arrival of deeply-sourced hot mantle ...
Adrien Moulin, Sigurjón Jónsson
doaj   +2 more sources

Margin-to-Margin Seafloor Spreading in the Eastern Gulf of Aden: A 16 Ma-Long History of Deformation and Magmatism from Seismic Reflection, Gravity and Magnetic Data

Frontiers in Earth Science, 2021
In this paper we present and analyze spreading-parallel seismic transects that image the oceanic crust in the eastern Gulf of Aden, from the Oman to the Socotra margins, across the active Sheba mid-oceanic ridge and between the Socotra-Hadbeen and ...
Morgane Gillard, Sylvie Leroy, Mathilde Cannat, Heather Sloan   +3 more
doaj   +1 more source

Formation of the Xigaze Metamorphic Sole under Tibetan continental lithosphere reveals generic characteristics of subduction initiation

Communications Earth & Environment, 2023
Metamorphic soles found under allochthonous oceanic lithosphere, or ophiolites, are interpreted as derived from lower plate oceanic crust material accreted to upper plate mantle during intraoceanic subduction initiation.
Carl Guilmette, Douwe J. J. van Hinsbergen, Matthijs A. Smit, Antoine Godet, François Fournier-Roy, Jared P. Butler, Marco Maffione, Shun Li, Kip Hodges   +8 more
doaj   +1 more source

Unveiling Powell Basin’s Tectonic Domains and Understanding Its Abnormal Magnetic Anomaly Signature. Is Heat the Key?

Frontiers in Earth Science, 2020
Rifting of continental lithosphere leading to oceanic basins is a complex process conditioned by different factors such as the rheology and thermal structure of the underlying lithosphere, as well as underlying asthenospheric dynamics.
M. Catalán, Y. M. Martos, Y. M. Martos, J. Galindo-Zaldivar, J. Galindo-Zaldivar, L. F. Perez, F. Bohoyo   +6 more
doaj   +1 more source

Microseismicity and lithosphere thickness at a nearly-amagmatic oceanic detachment fault system

Nature Communications, 2023
Oceanic detachment faults play a central role in accommodating the plate divergence at mid-oceanic ridges. Here, the authors show micro-seismicity of a nearly-amagmatic flip-flop detachment fault system at the ultraslow spreading Southwest Indian Ridge.
Jie Chen, Wayne C. Crawford, Mathilde Cannat   +2 more
doaj   +1 more source

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
doaj   +1 more source

Tectonic Controls on Carbon and Serpentinite Storage in Subducted Upper Oceanic Lithosphere for the Past 320 Ma

Frontiers in Earth Science, 2019
The subduction of upper oceanic lithosphere acts as a primary driver of Earth’s deep carbon and water cycles, providing a key transportation mechanism between surface systems and the deep Earth.
Andrew S. Merdith, Suzanne E. Atkins, Suzanne E. Atkins, Michael G. Tetley   +3 more
doaj   +1 more source

Tectonic Controls on Block Rotation and Sheeted Sill Emplacement in the Xigaze Ophiolite (Tibet): The Construction Mode of Slow‐Spreading and Ultraslow‐Spreading Oceanic Crusts

Geochemistry, Geophysics, Geosystems, 2021
The internal structure of oceanic crusts is not well understood due to the limitation of deep drilling. However, that of ophiolites, i.e., on‐land ancient analogs of oceanic lithosphere, could be precisely mapped and measured.
Tong Liu, Henry J. B. Dick, Chuan‐Zhou Liu, Fu‐Yuan Wu, Wen‐Bin Ji, Chang Zhang, Wei‐Qi Zhang, Zhen‐Yu Zhang, Yin‐Zheng Lin, Zhen Zhang   +9 more
doaj   +1 more source

Ophiolite complex of Piedmont-Ligurian basin (Northern Apennines)

Геофизический журнал, 2023
The Northern Apennines contain remnants of the Piedmont-Ligurian Basin (PLB) or ocean, which during the Late Mesozoic time (mainly in the Jurassic) separated the paleo-Europe (Iberian plate) from the southern paleocontinent Adria at the Africa promontory.
T. Yegorova, A. Murovskaya
doaj   +1 more source