Results 231 to 240 of about 6,943 (279)

Oceanic Plateau Formation Implied by Ontong Java Plateau, Kerguelen Plateau and Shatsky Rise

Journal of Ocean University of China, 2019
Oceanic plateaus are a significant type of large igneous provinces in the oceans, providing insights to regional tectonic events and mantle behavior. The three world’s largest oceanic plateaus, the Ontong Java Plateau, the Kerguelen Plateau and the Shatsky Rise, are representatives in displaying extraordinary fluxes of magma from mantle to lithosphere.
Jinchang Zhang
exaly   +2 more sources

Central Tibetan Meso-Tethyan oceanic plateau

Lithos, 2014
Abstract We report the occurrences of the remnants of a Meso-Tethyan oceanic plateau, encompassing an area of ~ 2 × 105 km2 in central Tibet. The plateau remnants include large volumes of pillow basalt formed largely by emergent to subaerial eruption, minor ultramafic intrusives and cumulates, exotic blocks of limestone, radiolarian chert, graywacke,
Kai-Jun Zhang, Bin Xia, Weiliang Liu
exaly   +2 more sources

Oceanic repeaters boost the global climatic impact of the Tibetan Plateau

Science Bulletin, 2023
The topography of the Tibetan Plateau (TP) has shaped the paleoclimatic evolution of the Asian monsoon. However, the influence of the TP on the global climate, beyond the domain of the Asian monsoon, remains unclear. Here we show that the Pacific and Atlantic Oceans act as efficient repeaters that boost the global climatic impact of the TP.
Yongkun, Xie, Jianping, Huang, Guoxiong, Wu, Yimin, Liu, Wenhao, Dong, Mengmeng, Lu, Bian, He, Zifan, Su, Qing, Bao, Qingyun, Zhao, Yuzhi, Liu   +10 more
exaly   +3 more sources

Oceanic plateaus: Problematic plumes, potential paradigms [PDF]

Chemical Geology, 2007
Oceanic plateaus are vast areas (N2—105 km2) of thicker than average oceanic crust (up to 38 km) that typically are elevated 2-3 km above the surrounding seafloor. Because of their thick, relatively high-standing crust, portions of oceanic plateaus can accrete to convergent continental margins and thus have contributed to continental growth over time ...
Andrew C. Kerr, John J. Mahoney
openaire   +2 more sources

Oceanic crust and Moho of the Pacific Plate in the eastern Ogasawara Plateau region [PDF]

Island Arc, 2007
To show the structure of oceanic crust and Moho around the eastern Ogasawara Plateau, we have analyzed industry-standard two-dimensional multichannel seismic reflection data.
Takeshi Tsuji, Yasuyuki Nakamura, Hidekazu Tokuyama   +2 more
exaly   +4 more sources

Mantle plume or slab window?: Physical and geochemical constraints on the origin of the Caribbean oceanic plateau [PDF]

Earth-Science Reviews, 2010
The Caribbean oceanic plateau formed in the Pacific realm when it erupted onto the Farallon plate from the Galapagos hotspot at ∼ 90 Ma. The plateau was subsequently transported to the northeast and collided with the Great Arc of the Caribbean thus ...
Alan R Hastie, Andrew C Kerr
exaly   +2 more sources

Evidence for subaerial development of the Caribbean oceanic plateau in the Late Cretaceous and palaeo-environmental implications [PDF]

Earth and Planetary Science Letters, 2018
The formation of oceanic plateaus in the Pacific in the Mesozoic has been proposed to create major environmental impacts, including global anoxic events OAE-1 in the Aptian (ca. 120 Ma) and OAE-2 in the Cenomanian–Turonian (ca. 90 Ma).
David M Buchs, Andrew C Kerr, Gabriel Rodríguez   +2 more
exaly   +3 more sources

Magnetic anomaly map of Ori Massif and its implications for oceanic plateau formation [PDF]

Earth and Planetary Science Letters, 2018
Many oceanic plateaus have been emplaced at or adjacent to mid-ocean ridges. To explain plateau volume and thickened crust compared to normal oceanic crust, hotspot–ridge interaction is commonly assumed, but the manner of interaction remains unclear. The
Yanming Huang, Masako Tominaga, John A Greene   +2 more
exaly   +2 more sources

Mascarene Plateau, Western Indian Ocean

Geological Society of America Bulletin, 1967
The submarine Mascarene Plateau, lying east and northeast of Madagascar in the west central Indian Ocean, extends as a faulted composite arc for 2300 km, from the Precambrian granitic “micro-continent” of Seychelles Bank southward through the coral–reef–capped volcanic structures (?) of Saya de Malha, Nazareth, and Cargados Carajos banks to the faulted
R. L. FISHER, G. L. JOHNSON, B. C. HEEZEN   +2 more
openaire   +3 more sources

Are oceanic plateaus sites of komatiite formation?

Geology, 1991
During Cretaceous and Tertiary time a series of oceanic terranes were accreted onto the Pacific continental margin of Colombia. The island of Gorgona is thought to represent part of the most recent, early Eocene, terrane-forming event. Gorgona is remarkable for the occurrence of komatiites of middle Cretaceous age, having MgO contents up to 24%.
STOREY, M, MAHONEY, JJ, KROENKE, LW, SAUNDERS, AD   +3 more
openaire   +1 more source