Results 1 to 10 of about 2,415 (142)

How transform fault shear influences where detachment faults form near mid-ocean ridges [PDF]

Scientific Reports, 2023
Oceanic detachment faults represent an end-member form of seafloor creation, associated with relatively weak magmatism at slow-spreading mid-ocean ridges.
Jana C. Schierjott, Garrett Ito, Mark D. Behn, Xiaochuan Tian, Thomas Morrow, Boris J. P. Kaus, Javier Escartín   +6 more
doaj   +2 more sources

The mechanism of tidal triggering of earthquakes at mid-ocean ridges [PDF]

Nature Communications, 2019
Tidal triggering of earthquakes at Axial Volcano on the Juan de Fuca ridge is shown to be driven by tidally induced magma chamber inflation. Fitting the data to theory requires that the frictional parameter A be much smaller than laboratory measurements ...
Christopher H. Scholz, Yen Joe Tan, Fabien Albino   +2 more
doaj   +2 more sources

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

Timing of Seafloor Spreading Cessation at the Macquarie Ridge Complex (SW Pacific) and Implications for Upper Mantle Heterogeneity

Geochemistry, Geophysics, Geosystems, 2021
The Macquarie Ridge Complex (MRC) on the Australia‐Pacific plate boundary south of New Zealand is an extinct mid‐ocean ridge that has experienced a complex tectonic history and produced highly heterogeneous mid‐ocean ridge basalts (MORBs).
Qiang Jiang, Renaud E. Merle, Fred Jourdan, Hugo K.H. Olierook, Martin J. Whitehouse, Katy A. Evans, Xuan‐Ce Wang, Chris E. Conway, Helen C. Bostock, Richard J. Wysoczanski   +9 more
doaj   +1 more source

Deep electrical imaging of the extinct oceanic ridge in the southwestern sub-basin of the South China Sea

Frontiers in Marine Science, 2023
The resistivity structure of an extinct mid-ocean ridge is significant in understanding the evolution of a mid-ocean ridge from its spreading phase to its dying phase.
Yan Gao, Jianping Li, Jianping Li, Fuyuan Li, Ruwei Zhang, Ruwei Zhang, Yunsheng Zhao, Yunsheng Zhao, Zhanxiang He, Zhanxiang He   +9 more
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

P-velocity of the upper mantle

Геофизический журнал, 2021
The authors have constructed models featuring seismic P-wave velocity distribution in the upper mantle beneath oceanic, continental and transition regions, such as mid-ocean ridges, basins, trenches, island arcs, and back-arc troughs, Atlantic ...
V.V. Gordienko, L.Ya. Gordienko
doaj   +1 more source

Do Olivine Crystallization Temperatures Faithfully Record Mantle Temperature Variability?

Geochemistry, Geophysics, Geosystems, 2021
Crystallization temperatures of primitive olivine crystals have been widely used as both a proxy for, or an intermediate step in calculating, mantle temperatures. The olivine‐spinel aluminum‐exchange thermometer has been applied to samples from mid‐ocean
Simon Matthews, Kevin Wong, Oliver Shorttle, Marie Edmonds, John Maclennan   +4 more
doaj   +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

Global Hydrogen Production During High‐Pressure Serpentinization of Subducting Slabs

Geochemistry, Geophysics, Geosystems, 2023
Serpentinization is among the most important, and ubiquitous, geological processes in crustal–upper mantle conditions (
A. S. Merdith, I. Daniel, D. Sverjensky, M. Andreani, B. Mather, S. Williams, A. Vitale Brovarone   +6 more
doaj   +1 more source