Results 161 to 170 of about 365,115 (188)

Was the Laramide orogeny related to subduction of an oceanic plateau?

Nature, 1981
Numerous models have been presented to explain the late Cretaceous/early Cenozoic Laramide orogeny, which affected the foreland region of the western cordillera within the US1. The most attractive models invoke low-angle subduction2–4, which can develop for various reasons5,6.
Richard F. Livaccari, Kevin Burke, A. M. C. Şengör   +2 more
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
openaire   +2 more sources

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
openaire   +4 more sources

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
openaire   +1 more source

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

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).
openaire   +1 more source

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

Journal of Geophysical Research: Solid Earth, 2021
Lin Chen, Bo Wan, Xiong Xiong
exaly  

Accretion of oceanic plateaus at continental margins: Numerical modeling

Gondwana Research, 2020
Ze Liu, Sanzhong Li, Hao Dong
exaly  

Study Arctic Ocean Plateau

The Science News-Letter, 1959
openaire   +1 more source

Subducted oceanic plateau fed crustal growth: Insights from Amdo dacites in central Tibetan Plateau

Lithos, 2022
Zhenglin Li, Hongxia Yu
exaly