Results 1 to 10 of about 20,365 (298)

Seafloor spreading of the third arm of the Afar triple junction: A review [PDF]

open access: yesHeliyon
The only place within the East African Rift System where seafloor spreading is being manifested along with new crust being formed is at the Afar triple junction, a seismically active area defined by latitude 9°N to 14°N and longitude 43E° to 49E ...
Duke N. Nyangena   +2 more
doaj   +4 more sources

Recognizing detachment-mode seafloor spreading in the deep geological past. [PDF]

open access: yesSci Rep, 2013
Large-offset oceanic detachment faults are a characteristic of slow- and ultraslow-spreading ridges, leading to the formation of oceanic core complexes (OCCs) that expose upper mantle and lower crustal rocks on the seafloor.
Maffione M, Morris A, Anderson MW.
europepmc   +8 more sources

13 million years of seafloor spreading throughout the Red Sea Basin [PDF]

open access: yesNature Communications, 2021
Here, based on earthquake data, vertical gravity gradient data and high-resolution bathymetry, the authors show that the Red Sea is not in transition from rifting to spreading as previously proposed.
Nico Augustin   +3 more
doaj   +2 more sources

Ignition of the southern Atlantic seafloor spreading machine without hot-mantle booster [PDF]

open access: yesScientific Reports, 2023
The source of massive magma production at volcanic rifted margins remains strongly disputed since the first observations of thick lava piles in the 1980s.
Daniel Sauter   +8 more
doaj   +2 more sources

Seismological Evidence for Girdled Olivine Lattice‐Preferred Orientation in Oceanic Lithosphere and Implications for Mantle Deformation Processes During Seafloor Spreading [PDF]

open access: diamondGeochemistry, Geophysics, Geosystems, 2022
Seismic anisotropy produced by aligned olivine in oceanic lithosphere offers a window into mid‐ocean ridge (MOR) dynamics. Yet, interpreting anisotropy in the context of grain‐scale deformation processes and strain observed in laboratory experiments and ...
J. B. Russell   +7 more
doaj   +3 more sources

Reappraisal of the Continental Rifting and Seafloor Spreading That Formed the South China Sea

open access: goldGeosciences
Recently published marine geophysical and seafloor drilling data permit a substantive reappraisal of the rifting and spreading that formed the South China Sea (SCS).
Brian Taylor
doaj   +2 more sources

Discovery of the first hydrothermal field along the 500-km-long Knipovich Ridge offshore Svalbard (the Jøtul field) [PDF]

open access: yesScientific Reports
Oceanic spreading centers north of Iceland are characterized by ultraslow spreading rates, and related hydrothermal activity has been detected in the water column and at the seafloor along nearly all ridge segments.
Gerhard Bohrmann   +14 more
doaj   +2 more sources

Consequences of a Global Slowdown in Seafloor Spreading for Sea Level and Mantle Heat Loss

open access: diamondGeochemistry, Geophysics, Geosystems
Variations in global mean sea level over millions of years originate from changes in both the climate and solid Earth systems. Most previous studies of the solid Earth contribution to sea level focused on the past 100 Myr or longer with a temporal ...
Colleen A. Dalton   +3 more
doaj   +2 more sources

Lithospheric Structure and Extensional Style of the Red Sea Rift Segments [PDF]

open access: yesLithosphere, 2023
The Red Sea provides an opportunity to study the processes during the transition from continental rifting to early-stage seafloor spreading during ocean initiation.
Kuruvamana Satheeshbabu Sreenidhi   +2 more
doaj   +1 more source

Insights on the Indian Ocean Tectonics and Geophysics Supported by GMT [PDF]

open access: yesRiscuri şi Catastrofe, 2020
This paper presented analyzed and summarized data on geological and geophysical settings about the tectonics and geological structure of the seafloor of the Indian Ocean by thematic visualization of the topographic, geophysical and geological data.
Polina Lemenkova
doaj   +1 more source

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