Results 251 to 260 of about 6,943 (279)

Is the Ordos Basin floored by a trapped oceanic plateau?

Earth and Planetary Science Letters, 2015
Abstract The Ordos Basin in China has about 10 km of Neoarchean to Quaternary sediments covering an enigmatic basement of uncertain origin. The basement is tectonically stable, has a thick mantle root, low heat flow, few earthquakes, and has been slowly subsiding for billions of years.
Tim Kusky, Walter Mooney
openaire   +1 more source

Age and geochemistry of magmatism on the oceanic Wallaby Plateau and implications for the opening of the Indian Ocean

Geology, 2015
The temporal relationship between tectonic and volcanic activity on passive continental margins immediately before and after the initiation of mid-ocean ridge spreading is poorly understood because ...
Olierook, Hugo, Merle, Renaud, Jourdan, Fred, Sircombe, K., Fraser, G., Timms, Nicholas Eric, Nelson, G., Dadd, K., Kellerson, L., Borissova, I.   +9 more
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Geochemical features of intraplate oceanic plateau basalts

Geological Society, London, Special Publications, 1989
Summary Coeval with the Cretaceous thermal uplift of a large region of the ‘old Pacific’ oceanic lithosphere was the widespread development of two expressions of intraplate volcanism: edifice building (ocean islands, seamounts) and submarine sheet-flows (oceanic plateaux).
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Isotopic model of oceanic silicon cycling: The Kerguelen Plateau case study

Deep Sea Research Part I: Oceanographic Research Papers, 2012
Abstract A box model is presented describing the time evolution for the three stable Si isotopes (or total concentration and natural isotopic compositions), both in the dissolved and biogenic pools. Temporal variations are controlled by uptake, dissolution (both with isotopic fractionation), settling/export and mixing/advection (without isotopic ...
de Brauwere, Anouk, Fripiat, François, Cardinal, Damien, Cavagna, Anne-Julie, de Ridder, Fjo, André, Luc, Elskens, Marc   +6 more
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How did the Largest Oceanic Plateau modify the Normal Oceanic Lithosphere?

The Ontong Java Plateau (OJP), formed around 120 Ma, represents a significant event in the Earth’s geologic history. It is the largest preserved Large Igneous Province (LIP) by volume on the Earth. The voluminous and rapid magmatism placed a thick 30-40 km crust on a normal oceanic lithosphere in submarine conditions.
Ziqi Zhang, Tolulope Olugboji
openaire   +1 more source

Temporal variability of the upper ocean southeast the Kerguelen Plateau

Oceans 2003. Celebrating the Past ... Teaming Toward the Future (IEEE Cat. No.03CH37492), 2003
Summary form only given. XBT/XCTD observations from four cruises across the Southern Ocean from Fremantle, Australia to Prydz Bay, Antarctica were analyzed to examine the upper ocean thermohaline structure in the southeast Indian Ocean and its temporal variability.
X. Yuan, D.G. Martinson, Z. Dong
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Oceanic plateau accretion for young oceanic plates: Geodynamics models of Siletzia

The Siletzia oceanic plateau was accreted to the western margin of North America in the Eocene, marking the most recent accretion event in this area and the formation of the modern Cascadia subduction zone. Siletzia formed on or near the spreading ridge of two oceanic plates, and its chemical composition shows that its origin is a mixture of mid-ocean ...
Moritz Urban, Claire Currie
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From oceanic plateaus to allochthonous terranes: Numerical modelling

Gondwana Research, 2014
Large segments of the continental crust are known to have formed through the amalgamation of oceanic plateaus and continental fragments. However, mechanisms responsible for terrane accretion remain poorly understood. We have therefore analysed the interactions of oceanic plateaus with the leading edge of the continental margin using a thermomechanical ...
Vogt Katharina, Gerya Taras
openaire   +3 more sources

Oceanic Plateau and Subduction Zone Jump: Two‐Dimensional Thermo‐Mechanical Modeling

Journal of Geophysical Research: Solid Earth, 2021
Zhiyong Yan, Ling Chen, Xiong Xiong
exaly  

Infant intra-oceanic arc magmatism due to initial subduction induced by oceanic plateau accretion: A case study of the Bangong Meso-Tethys, central Tibet, western China

Gondwana Research, 2020
Li-Long Yan, Kai-Jun Zhang
exaly