Results 21 to 30 of about 126,680 (250)
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 +31 more
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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 +4 more
doaj +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 +2 more
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Eos, Transactions American Geophysical Union, 2013 The global mid-ocean ridge system is a primary focus for energy transfer from the Earth's interior to the lithosphere, biosphere, hydrosphere, and atmosphere. In a coordinated effort to understand the causes and predict the consequences of mantle-driven physical, chemical, and biological fluxes through the ridge-crest system, the RIDGE (Ridge Inter ...
openaire +2 more sources
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. +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. +2 more
core +1 more source
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 +6 more
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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 +7 more
doaj +1 more source
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 +8 more
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Geochemistry of mafic extrusive lavas in the Bayankhongor Ophiolite, Mongolia
Mongolian GeoscientistThis study presents new geochemical data on pillow lavas from the Bayankhongor Ophiolite in western Mongolia, revealing compositions that range from sub-alkaline to alkaline basalts.
Bayarmaa Batsukh +4 more
doaj +1 more source