Results 1 to 10 of about 1,108,477 (248)
Geosciences, 2022 The Lau Basin is a back-arc region formed by the subduction of the Pacific plate below the Australian plate. We studied the regional morphology of the back-arc spreading centers of the Northern Lau basin, and we compared it to their relative spreading ...
Camilla Palmiotto +4 more
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Melt burst events in a dominantly amagmatic lithosphere at Gakkel Ridge in the Arctic Ocean [PDF]
Nature CommunicationsAlternation of magmatic and amagmatic seafloor along the slow and ultraslow spreading ridges is common. Yet, temporal variation is obscured by sediments blanketing oceanic basement away from spreading centers.
Fei Zhou +2 more
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Rifting/spreading propagation interacts with preexisting transform faults: 3D geodynamic modeling
Frontiers in Earth Science, 2023 The divergent rifting/spreading centers and the strike-slip transform faults are the essential tectonic units on Earth, the dynamic evolution of which regulates the development of rifting/spreading basins. The propagation of rifting/spreading centers may
Hao Li +8 more
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Geochemistry, Geophysics, Geosystems, 2011 Most hydrothermal systems at oceanic spreading centers are underlain by basaltic magma bodies; however, some are underlain by higher‐silica magmas such as andesite or dacite.
Lei Liu, Robert P. Lowell
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Geodynamic Models of Melt Generation and Extraction at Mid-Ocean Ridges [PDF]
Oceanography, 2012 It is widely accepted that plate divergence at mid-ocean ridges drives mantle flow, mantle melting, and the formation of new oceanic crust. However, many of the details of this process remain obscure because of the inaccessibility of the mantle to direct
Patricia M. Gregg +3 more
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Estimating Zooplankton Biomass Distribution in the Water Column Near the Endeavour Segment of Juan de Fuca Ridge Using Acoustic Backscatter and Concurrently Towed Nets [PDF]
Oceanography, 2012 Logistical challenges, time, and the cost of towed net surveys make it difficult to obtain estimates of secondary biomass and production in the open ocean outside the summer sampling season. Alternate approaches are sometimes needed.
Brenda J. Burd, Richard E. Thomson
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Links from Mantle to Microbe at the Lau Integrated Study Site: Insights from a Back-Arc Spreading Center [PDF]
Oceanography, 2012 The Lau Integrated Study Site (ISS) has provided unique opportunities for study of ridge processes because of its back-arc setting in the southwestern Pacific. Its location allows study of a biogeographical province distinct from those of eastern Pacific
Margaret K. Tivey +7 more
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Oceanography, 2012 It is with especially great pleasure, and a bit of nostalgia, that I introduce the March 2012 special issue of Oceanography on "Oceanic Spreading Center Processes: Ridge 2000 Program Research." My very first oceanographic cruise was to the Juan de Fuca ...
Ellen S. Kappel
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Geosystems and Geoenvironment, 2023 The convergent subduction zones and the divergent spreading ridges are essential tectonic units that are widely distributed in the South China Sea and the surrounding regions, governing the regional tectonic evolution.
Jie Liao +5 more
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Chemistry, Temperature, and Faunal Distributions at Diffuse-Flow Hydrothermal Vents: Comparison of Two Geologically Distinct Ridge Systems [PDF]
Oceanography, 2012 Diffuse-flow, low-temperature areas near hydrothermal vents support life via chemosynthesis: hydrogen sulfide (and other reduced chemical compounds) emanating from the subsurface is oxidized with bottom-water oxygen through bacterial mediation to fix ...
George W. Luther III +10 more
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