Results 1 to 10 of about 1,523 (160)

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 ...
N Nyangena, Athanas S Macheyeki
exaly   +4 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

Review of Asymmetric Seafloor Spreading and Oceanic Ridge Jumps in the South China Sea

open access: yesJournal of Marine Science and Engineering
Seafloor spreading is an important cornerstone of the theory of plate tectonics. Asymmetric seafloor spreading and oceanic ridge jumps are common phenomena in this process and play important roles in controlling oceanic crust accretion, regional ...
Jiangong Wei, Huai Cheng, Fuyuan Li
exaly   +3 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

Magnetic signature of large exhumed mantle domains of the Southwest Indian Ridge – results from a deep-tow geophysical survey over 0 to 11 Ma old seafloor [PDF]

open access: yesSolid Earth, 2014
We investigate the magnetic signature of ultramafic seafloor in the eastern part of the Southwest Indian Ridge (SWIR). There, detachment faulting, continuous over 11 Myr, exhumed large areas of mantle-derived rocks.
A. Bronner   +6 more
doaj   +1 more source

Thermochemical anomalies in the upper mantle control Gakkel Ridge accretion

open access: yesNature Communications, 2021
The ultimate driver of ultraslow spreading ridges is unknown. Here the authors use spreading rates derived directly from isotopic ages of seafloor samples to link magmatic and amagmatic segments with thermochemical variations in the upper mantle.
John M. O’Connor   +5 more
doaj   +1 more source

Magnetic anomaly lineations in the Northeastern South China Sea and their implications for initial seafloor spreading

open access: yesFrontiers in Earth Science, 2023
Ridge jumps occurred during the spreading process of the South China Sea. Recent research on the lower crustal reflectors event on seismic profiles found at least two southward ridge jumps, but only one has been confirmed by geomagnetic data.
Zhaocai Wu   +4 more
doaj   +1 more source

Regional Variations in the Spreading‐Rate Dependence of Abyssal Hill Roughness as Indicators of Mantle Heterogeneity

open access: yesGeophysical Research Letters, 2023
Abyssal hills are potential proxy records of mid‐ocean ridge faulting and volcanism, as well as the spreading rates and mantle properties that influence these processes.
John A. Goff
doaj   +1 more source

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