Results 11 to 20 of about 365,115 (188)

Central Afar: An analogue for oceanic plateau development [PDF]

Geology
Abstract The structure, composition, and evolution of oceanic plateaus are poorly understood and strongly debated. Here, we compared the magmatic history and crustal structure of Afar with the Greenland–Iceland–Faroe Ridge and other oceanic plateaus. Key similarities indicate that Central Afar represents the early stage of development of
Rime V., Keir D., Phethean J., Kidane T., Foubert A.   +4 more
core   +6 more sources

An Oceanic Plateau Induced Subduction Zone Jump From Proto‐ to Paleo‐Tethys in East Kunlun, Northern Tibetan Plateau

Geochemistry, Geophysics, Geosystems
The relationship between the Proto‐Tethys and Paleo‐Tethys is still debated. Some researchers believe that the Paleo‐Tethys opened after the Proto‐Tethys closed, while others argue that they are the same ocean with two stages of subduction.
Rutao Zang, Yunpeng Dong, Dazhi Jiang, Dengfeng He, Shengsi Sun, Bo Hui, Bin Zhang   +6 more
doaj   +2 more sources

Subduction of the oceanic Hikurangi Plateau and its impact on the Kermadec arc [PDF]

Nature Communications, 2014
Large igneous province subduction is a rare process on Earth. A modern example is the subduction of the oceanic Hikurangi Plateau beneath the southern Kermadec arc, offshore New Zealand. This segment of the arc has the largest total lava volume erupted and the highest volcano density of the entire Kermadec arc.
Timm C., Davy B., Haase K., Hoernle K. A., Graham I. J., De Ronde C. E. J., Woodhead J., Bassett D., Hauff F., Mortimer N., Seebeck H. C., Wysoczanski R. J., Caratori Tontini F., Gamble J. A.   +13 more
openaire   +5 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

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   +3 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

Temperatures in ambient mantle and plumes: Constraints from basalts, picrites, and komatiites [PDF]

, 2006
Several methods have been developed to assess the thermal state of the mantle below oceanic ridges, islands, and plateaus, on the basis of the petrology and geochemistry of erupted lavas. One leads to the conclusion that mantle potential temperature (i.e.
Lesher, C. M., P. D. Asimow (4380079), Niu, Yaoling, A. D. Saunders (7585886), Lesher, C.M., Arndt, N., Herzberg, C., C. Herzberg (10061344), Fitton, J.G., Fitton, J. G., Asimow, Paul D., Y. L. Niu (10061347), C. M. Lesher (7733825), Asimow, P.D., J. G. Fitton (7585871), Saunders, A.D., Saunders, A. D., Arndt, Nicholas, N. Arndt (8870258), Michael Cheadle (10060309), Cheadle, M. J., Cheadle, M.J., Niu, Y. L., Niu, Y., Asimow, P. D., Cheadle, Michael   +25 more
core   +1 more source

IODP Expedition 324: Ocean Drilling at Shatsky Rise Gives Clues about Oceanic Plateau Formation [PDF]

Scientific Drilling, 2011
Integrated Ocean Drilling Program (IODP) Expedition 324 cored Shatsky Rise at five sites (U1346–U1350) to study processes of oceanic plateau formation and evolution.
W. W. Sager, T. Sano, J. Geldmacher, the IODP Expedition 324 Scientists   +3 more
doaj   +3 more sources

Initial opening of the Eurasian Basin, Arctic Ocean

Frontiers in Earth Science, 2016
Analysis of the transition from the NE Yermak Plateau into the oceanic Eurasian Basin sheds light on the Paleocene formation of this Arctic basin. Newly acquired multichannel seismic data with a 3600 m long streamer shot during ice-free conditions ...
Kai Berglar, Dieter Franke, Rüdiger Lutz, Bernd Schreckenberger, Volkmar Damm   +4 more
doaj   +1 more source