Results 1 to 10 of about 3,439 (98)
The architecture of oceanic plateaus revealed by the volcanic stratigraphy of the accreted Wrangellia oceanic plateau [PDF]
Geosphere, 2010 The accreted Wrangellia flood basalts and associated sedimentary rocks that compose the prevolcanic and postvolcanic stratigraphy provide an unparalleled view of the architecture, eruptive environment, and accumulation and subsidence history of an oceanic plateau.
Andrew R. Greene +5 more
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Petrogenesis of Siletzia: The world's youngest oceanic plateau [PDF]
Results in Geochemistry, 2020 Siletzia is an accreted Palaeocene-Eocene Large Igneous Province, preserved in the northwest United States and southern Vancouver Island. Although previous workers have suggested that components of Siletzia were formed in tectonic settings including back arc basins, island arcs and ocean islands, more recent work has presented evidence for parts of ...
Ciborowski, T. Jake R. +4 more
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The seismic Moho structure of Shatsky Rise oceanic plateau, northwest Pacific Ocean [PDF]
Earth and Planetary Science Letters, 2016 Abstract Oceanic plateaus are large igneous provinces formed by extraordinary eruptions that create thick oceanic crust, whose structure is poorly known owing to the lack of deep-penetration seismic data. Multichannel seismic (MCS) reflection and wide-angle refraction data allow us to show Moho structure beneath a large part of the Shatsky Rise ...
Zhang, Jinchang +2 more
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The fate of oceanic plateaus: subduction versus accretion
Geophysical Journal International, 2022 SUMMARYOceanic plateaus (or aseismic ridges) can be either subducted into the deep mantle, or accreted onto the overriding plate. Furthermore, some oceanic plateaus can change subduction mode from steep to flat-slab subduction. What factors control the fate of oceanic plateaus during subduction remain enigmatic.
Zhiyong Yan +5 more
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Rifting of the oceanic Azores Plateau with episodic volcanic activity [PDF]
Scientific Reports, 2020 AbstractExtension of the Azores Plateau along the Terceira Rift exposes a lava sequence on the steep northern flank of the Hirondelle Basin. Unlike typical tholeiitic basalts of oceanic plateaus, the 1.2 km vertical submarine stratigraphic profile reveals two successive compositionally distinct basanitic to alkali basaltic eruptive units.
Storch, B. +4 more
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Quantify Oceanic Moisture Contribution to the Tibetan Plateau
, 2022 Abstract. Evaporation from global oceans is an important moisture source of glaciers and headwaters of major Asia rivers in the Tibetan Plateau (TP). Although recent accelerated global hydrological cycle, altered sea-land thermal contrast, and amplified warming rate over the TP are known to have profound effects on the regional water balance, the ...
Ying Li +5 more
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Trophodynamics of Southern Ocean pteropods on the southern Kerguelen Plateau [PDF]
Ecology and Evolution, 2019 AbstractPteropods are a group of small marine gastropods that are highly sensitive to multiple stressors associated with climate change. Their trophic ecology is not well studied, with most research having focused primarily on the effects of ocean acidification on their fragile, aragonite shells.
Christine K. Weldrick +3 more
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data for the fate of oceanic plateaus
, 2021 The first release of our numerical modeling data for "The fate of oceanic plateaus: subduction versus accretion".
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Geoscience Frontiers, 2020 Abstract From a compilation of geochemical data for the discrimination of the tectonic settings of mid-ocean ridge (MOR; 3730 samples) and oceanic plateau (OP; 3656 samples), we present two new discriminant functions and diagrams obtained from censored multivariate discordant outlier-free datasets.
Surendra P. Verma +1 more
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Continental crust beneath the Agulhas Plateau, southwest Indian Ocean [PDF]
Journal of Geophysical Research: Solid Earth, 1981 The Agulhas Plateau lies 500 km off the Cape of Good Hope in the southwestern Indian Ocean. Acoustic basement beneath the northern one third of this large, aseismic structural high has rugged morphology, but basement in the south is anomalously smooth, excepting a 30‐ to 90‐km‐wide zone with irregular relief that trends south‐southwest through the ...
Tucholke, Brian E. +2 more
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