Results 1 to 10 of about 3,938 (161)

Sulfide resorption during crustal ascent and degassing of oceanic plateau basalts [PDF]

Nature Communications, 2019
The solubility of sulfur in basaltic melt has important implications for the formation of magmatic ore deposits. Here, the authors show that magma ascent and sulfur-degassing influence the degree to which basaltic magmas are enriched in economically ...
C. D. J. Reekie, F. E. Jenner, D. J. Smythe, E. H. Hauri, E. S. Bullock, H. M. Williams   +5 more
doaj   +2 more sources

Probing the world's largest oceanic plateau: from making to collision. [PDF]

Natl Sci Rev
The enormously thick Ontong Java Plateau crust was built primarily by deep magma intrusion and underplating, with relatively minor contribution from flood basalts.
Jiang X, Li ZX, Gong W, Xing L, Li D, Liu H, Xu C.   +6 more
europepmc   +3 more sources

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 ...
Jinchang Zhang, Jun Korenaga
exaly   +2 more sources

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, James S. Scoates, Dominique Weis, Erik C. Katvala, Steve Israel, Graham T. Nixon   +5 more
openaire   +2 more sources

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., Phillips, Bethan A., Kerr, Andrew C., Barfod, Dan N., Mark, Darren F.   +4 more
openaire   +1 more source

Mesozooplankton structure and functioning during the onset of the Kerguelen phytoplankton bloom during the KEOPS2 survey [PDF]

Biogeosciences, 2015
This paper presents results on the spatial and temporal distribution patterns of mesozooplankton in the naturally fertilized region to the east of the Kerguelen Islands (Southern Ocean) visited at early bloom stage during the KEOPS2 survey (15 October to
F. Carlotti, M.-P. Jouandet, A. Nowaczyk, M. Harmelin-Vivien, D. Lefèvre, P. Richard, Y. Zhu, M. Zhou   +7 more
doaj   +1 more source

Nature and Origin of Magnetic Lineations Within Valdivia Bank: Ocean Plateau Formation by Complex Seafloor Spreading

Geophysical Research Letters, 2023
Valdivia Bank (VB) is a Late Cretaceous oceanic plateau formed by volcanism from the Tristan‐Gough hotspot at the Mid‐Atlantic Ridge (MAR). To better understand its origin and evolution, magnetic data were used to generate a magnetic anomaly grid, which ...
S. Thoram, W. W. Sager, K. Gaastra, S. M. Tikoo, C. Carvallo, A. Avery, Arianna V. Del Gaudio, Y. Huang, K. Hoernle, T. W. Höfig, R. Bhutani, D. M. Buchs, C. Class, Y. Dai, G. Dalla Valle, S. Fielding, S. Han, D. E. Heaton, S. Homrighausen, Y. Kubota, C.‐F. Li, W. R. Nelson, E. Petrou, K. E. Potter, S. Pujatti, J. Scholpp, J. W. Shervais, M. Tshiningayamwe, X. J. Wang, M. Widdowson   +29 more
doaj   +1 more source

Aseismic ridge subduction and flat subduction: Insights from three-dimensional numerical models

Earth and Planetary Physics, 2023
Flat subduction can significantly influence the distribution of volcanism, stress state, and surface topography of the overriding plate. However, the mechanisms for inducing flat subduction remain controversial.
Hui Zhao, Wei Leng
doaj   +1 more source

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., Haase, K. M., Romer, R. H. W., Beier, C., Koppers, A. A. P.   +4 more
openaire   +2 more sources

Subduction Initiation by Plume‐Plateau Interaction: Insights From Numerical Models

Geochemistry, Geophysics, Geosystems, 2020
It has recently been demonstrated that the interaction of a mantle plume with sufficiently old oceanic lithosphere can initiate subduction. However, the existence of large lithospheric heterogeneities, such as a buoyant plateau, in proximity to a rising ...
Marzieh Baes, Stephan V. Sobolev, Taras Gerya, Sascha Brune   +3 more
doaj   +1 more source