Results 21 to 30 of about 126,508 (258)

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

Recycled gabbro signature in hotspot magmas unveiled by plume–ridge interactions [PDF]

, 2011
Lavas erupted within plate interiors above upwelling mantle plumes have chemical signatures that are distinct from midocean ridge lavas. When a plume interacts with a mid-ocean ridge, the compositions of both their lavas changes, but there is no ...
AE Saal, AV Sobolev, AW Hofmann, C Chauvel, C. W. Devey, CA Stein, CW Devey, DW Graham, G Ito, G Ito, G Ito, GM Yaxley, J Phipps Morgan, J-G Schilling, JM O’Connor, KM Haase, KM Haase, KM Haase, KM Haase, KS Harpp, M Maia, M Maia, M Ozima, MF Coffin, MG Braun, N. A. Stroncik, NA Stroncik, PS Hall, R Dasgupta, RA Keller, S Huang, TA Bianco   +31 more
core   +1 more source

Volcanic evolution of an ultraslow-spreading ridge

Nature Communications, 2023
Nearly 30% of ocean crust forms at mid-ocean ridges where the spreading rate is less than 20 mm per year. According to the seafloor spreading paradigm, oceanic crust forms along a narrow axial zone and is transported away from the rift valley.
H. H. Stubseid, A. Bjerga, H. Haflidason, L. E. R. Pedersen, R. B. Pedersen   +4 more
doaj   +1 more source

Compositional stratification in the deep mantle [PDF]

, 1999
A boundary between compositionally distinct regions at a depth of about 1600 kilometers may explain the seismological observations pertaining to Earth's lower mantle, produce the isotopic signatures of mid-ocean ridge basalts and oceanic island basalts ...
Hager, Bradford H., Hilst, R.D. van der, Kellogg, louise H.   +2 more
core   +1 more source

MeltMigrator : a MATLAB-based software for modeling three-dimensional melt migration and crustal thickness variations at mid-ocean ridges following a rules-based approach [PDF]

, 2017
Author Posting. © American Geophysical Union, 2017. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Geochemistry, Geophysics, Geosystems 18 (2017):
Bai, Hailong, Behn, Mark D., Montesi, Laurent G. J.   +2 more
core   +1 more source

Sea-floor tectonics and submarine hydrothermal systems [PDF]

, 2005
The discovery of metal-depositing hot springs on the sea floor, and especially their link to chemosynthetic life, was among the most compelling and significant scientific advances of the twentieth century. More than 300 sites of hydrothermal activity and
de Ronde, Cornell D. J., Hannington, Mark D., Petersen, Sven   +2 more
core   +1 more source

Modification of Along‐Ridge Topography and Crustal Thickness by Mantle Plume and Oceanic Transform Fault at Ultra‐Slow Spreading Mohns Ridge

Geophysical Research Letters, 2023
The mantle plumes modify geophysical and geochemical features along and across mid‐ocean ridges. Despite abundant studies of plume‐ridge interaction, few geodynamic studies focus on the Arctic Ocean.
Yinuo Zhang, Fan Zhang, Xubo Zhang, Tao Zhang, Jian Lin, Zhiyuan Zhou, Jiangyang Zhang   +6 more
doaj   +1 more source

Variations in Volcanism and Tectonics Along the Hotspot‐Influenced Reykjanes Ridge

Geochemistry, Geophysics, Geosystems, 2023
Mapping and sampling four sections of the slow‐spreading Reykjanes Ridge provide insight into how tectonic and volcanic activity varies with distance from the Iceland plume.
M. Le Saout, D. Pałgan, C. W. Devey, T. S. Lux, S. Petersen, D. Thorhallsson, A. Tomkowicz, S. Brix   +7 more
doaj   +1 more source

Reconstructed ocean plate stratigraphy sequences from the Permian subduction-accretionary complex in the Qinghai-Tibet Plateau

Geosystems and Geoenvironment, 2022
The Permian Tethys subduction-accretionary complex (SAC) in the Qinghai-Tibet Plateau (QTP) is distributed in six geotectonic provinces, which are known as the Zongwulong-Ganjia, the Western Kunlun, the Eastern Kunlun, the Ganzi-Litang, the Xijinwulan ...
Kexin Zhang, Jiaxuan Wang, Weihong He, Shengdong Wang, Yadong Xu, Xionghua Zhang, Bowen Song, Xiaohu Kou, Guocan Wang   +8 more
doaj   +1 more source