Results 11 to 20 of about 4,944 (117)

Numerical model of crustal accretion and cooling rates of fast-spreading mid-ocean ridges [PDF]

Geoscientific Model Development, 2013
We designed a thermo-mechanical numerical model for fast-spreading mid-ocean ridge with variable viscosity, hydrothermal cooling, latent heat release, sheeted dyke layer, and variable melt intrusion possibilities.
P. Machetel, C. J. Garrido
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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
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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, A. Bjerga, H. Haflidason, L. E. R. Pedersen, R. B. Pedersen   +4 more
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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
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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, D. Pałgan, C. W. Devey, T. S. Lux, S. Petersen, D. Thorhallsson, A. Tomkowicz, S. Brix   +7 more
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Geochemistry of mafic extrusive lavas in the Bayankhongor Ophiolite, Mongolia

Mongolian Geoscientist
This 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, Turbold Sukhbaatar, Gerel Ochir, Oyunbold Sukhbaatar, Odgerel Dashdorjgochoo   +4 more
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Hydroacoustic Monitoring of Oceanic Spreading Centers: Past, Present, and Future [PDF]

Oceanography, 2012
Mid-ocean ridge volcanism and extensional faulting are the fundamental processes that lead to the creation and rifting of oceanic crust, yet these events go largely undetected in the deep ocean.
Robert P. Dziak, DelWayne R. Bohnenstiehl, Deborah K. Smith   +2 more
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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
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Transfer learning reconstructs submarine topography for global mid-ocean ridges

International Journal of Applied Earth Observations and Geoinformation
Mid-ocean ridges are unique, tectonically active geographical units on Earth that profoundly control the ocean environment and dynamics at the global scale.
Yinghui Jiang, Sijin Li, Yanzi Yan, Bingqing Sun, Josef Strobl, Liyang Xiong   +5 more
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Active Long-Lived Faults Emerging Along Slow-Spreading Mid-Ocean Ridges [PDF]

Oceanography, 2012
In the classic mid-ocean ridge model, new seafloor is generated through a combination of magmatic diking feeding lava flows at the spreading axis, and the formation of short-offset, high-angle normal faults that dip toward the axis.
Deborah K. Smith, Javier Escartín, Hans Schouten, Johnson R. Cann   +3 more
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