Results 11 to 20 of about 126,680 (250)

Extreme Heterogeneity in Mid‐Ocean Ridge Mantle Revealed in Lavas From the 8°20′N Near‐Axis Seamount Chain

Geochemistry, Geophysics, Geosystems, 2021
Lavas that have erupted at near‐axis seamounts provide windows into mid‐ocean ridge mantle heterogeneity and melting systematics which are not easily observed on‐axis at fast‐spreading centers.
Molly Anderson, V. Dorsey Wanless, Michael Perfit, Ethan Conrad, Patricia Gregg, Daniel Fornari, W. Ian Ridley   +6 more
doaj   +1 more source

The Mode of Trench-Parallel Subduction of the Middle Ocean Ridge

Frontiers in Earth Science, 2021
Trench-parallel subduction of mid-ocean ridges occurs frequently in plate motion history, such as along the western boundary of the Pacific plate in the early Cenozoic and along the eastern boundary of the Pacific plate at present.
Xiaobing Shen, Wei Leng, Wei Leng
doaj   +1 more source

Trace Element Evidence of Subduction-Modified Mantle Material in South Mid-Atlantic Ridge 18–21°S Upper Mantle

Journal of Marine Science and Engineering, 2023
Mid-ocean ridge basalts (MORBs), produced at mid-ocean ridge where the continents and subduction zones are distant, are the product of partial melting of the upper mantle and their chemical composition can provide information about the mantle itself. The
Tianxiao Ji, Zhigang Zeng
doaj   +1 more source

Dense cold‐water coral garden of Paragorgia johnsoni suggests the importance of the Mid‐Atlantic Ridge for deep‐sea biodiversity

Ecology and Evolution, 2021
Mid‐ocean ridges generate a myriad of physical oceanographic processes that favor the supply of food and nutrients to suspension‐ and filter‐feeding organisms, such as cold‐water corals and deep‐sea sponges.
Telmo Morato, Carlos Dominguez‐Carrió, Christian Mohn, Oscar Ocaña Vicente, Manuela Ramos, Luís Rodrigues, Íris Sampaio, Gerald H. Taranto, Laurence Fauconnet, Inês Tojeira, Emanuel J. Gonçalves, Marina Carreiro‐Silva   +11 more
doaj   +1 more source

A Highly Depleted and Subduction‐Modified Mantle Beneath the Slow‐Spreading Mohns Ridge

Geochemistry, Geophysics, Geosystems, 2022
The Mohns Ridge is a very slow‐spreading ridge that, together with the Knipovich Ridge, marks the boundary between the North American and Eurasian plates in the Norwegian‐Greenland Sea.
A. Bjerga, H. H. Stubseid, L. E. R. Pedersen, A. Beinlich, R. B. Pedersen   +4 more
doaj   +1 more source

Nonchondritic 142Nd in suboceanic mantle peridotites [PDF]

, 2011
The discovery that several solid Earth reservoirs have a superchondritic 142Nd/144Nd ratio led to the hypothesis that either the bulk silicate Earth is not chondritic or that a subchondritic reservoir lies hidden somewhere within the Earth's interior ...
Bonatti, Enrico, Cipriani, Anna, W. Carlson, Richard   +2 more
core   +2 more sources

Mantle melting as a function of water content beneath back-arc basins [PDF]

, 2006
Subduction zone magmas are characterized by high concentrations of H_(2)O, presumably derived from the subducted plate and ultimately responsible for melting at this tectonic setting.
Grove, Timothy L., Hauri, Erik, Kelley, Katherine A., Newman, Sally, Plank, Terry, Stolper, Edward M.   +5 more
core   +1 more source

Local Seismicity and Sediment Deformation in the West Svalbard Margin: Implications of Neotectonics for Seafloor Seepage

Geochemistry, Geophysics, Geosystems, 2023
In the Fram Strait, mid‐ocean ridge spreading is represented by the ultra‐slow system of the Molloy Ridge, the Molloy Transform Fault and the Knipovich Ridge. Sediments on oceanic and continental crust are gas charged and there are several locations with
P. Domel, A. Plaza‐Faverola, V. Schlindwein, S. Bünz   +3 more
doaj   +1 more source

Time scales of melt extraction revealed by distribution of lava composition across a ridge axis [PDF]

, 2010
International audienceTemporal fluctuations of magmatic processes during the last 800 kyr have been investigated for the slow spreading Central Indian Ridge.
Benoit, Mathieu, Briais, Anne, Cordier, Carole, Dyment, J., Hémond, Christophe,, Kitazawa, M., Le Gall, Bernard   +6 more
core   +4 more sources

Fast northward energy transfer in the Atlantic due to Agulhas rings [PDF]

, 2007
The adiabatic transit time of wave energy radiated by an Agulhas ring released in the South Atlantic Ocean to the North Atlantic Ocean is investigated in a two-layer ocean model.
Anderson, Andersson, Barnier, Beismann, Boebel, Broecker, Bryden, Cessi, Clark, De Ruijter, De Ruijter, De Steur, Drijfhout, Erik van Sebille, Ganachaud, Gordon, Johnson, Johnson, Kamenkovitch, Knorr, Kowalik, Liu, Longuet-Higgins, Lutjeharms, Mesinger, Nof, Peeters, Peter Jan van Leeuwen, Primeau, Rahmstorf, Rahmstorf, Saenko, Schmitz, Schouten, Tailleux, Tailleux, Tang, Van Aken, Wang, Weijer, Weijer   +40 more
core   +1 more source