Results 1 to 10 of about 3,743 (143)

Recycled arc mantle recovered from the Mid-Atlantic Ridge [PDF]

open access: yesNature Communications, 2020
Plate tectonics necessitates mantle recycling throughout Earth’s history, yet direct geochemical evidence for mantle reprocessing remains elusive. Here, the authors present evidence of recycled supra-subduction zone mantle wedge peridotite dredged from ...
B. M. Urann   +3 more
doaj   +6 more sources

Dense cold‐water coral garden of Paragorgia johnsoni suggests the importance of the Mid‐Atlantic Ridge for deep‐sea biodiversity [PDF]

open access: yesEcology 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   +11 more
doaj   +2 more sources

Occurrence and characterization of tremolite asbestos from the Mid Atlantic Ridge [PDF]

open access: yesScientific Reports, 2021
Tremolite is one of the most common amphibole species and, in the fibrous form (i.e., characterized by crystals/particles consisting of fibres with length > 5 µm, width  3), one of the six asbestos minerals.
Dario Di Giuseppe   +8 more
doaj   +2 more sources

Detachment tectonics at Mid-Atlantic Ridge 26°N. [PDF]

open access: yesSci Rep, 2019
AbstractSpreading processes associated with slow-spreading ridges are a complex interplay of volcanic accretion and tectonic dismemberment of the oceanic crust, resulting in an irregular seafloor morphology made up of blocks created by episodes of intense volcanic activity or tectonic deformation. These blocks undergo highly variable evolution, such as
Szitkar F   +8 more
europepmc   +9 more sources

Microbial iron mats at the Mid-Atlantic Ridge and evidence that Zetaproteobacteria may be restricted to iron-oxidizing marine systems. [PDF]

open access: yesPLoS ONE, 2015
Chemolithoautotrophic iron-oxidizing bacteria play an essential role in the global iron cycle. Thus far, the majority of marine iron-oxidizing bacteria have been identified as Zetaproteobacteria, a novel class within the phylum Proteobacteria.
Jarrod J Scott   +3 more
doaj   +2 more sources

Volcanic Geological Sites in UGGp European Geoparks: Special Issue [PDF]

open access: yesGeoconservation Research, 2023
In this Special Issue, we present 11 of the 15 geoparks that show key aspects of the past and current volcanic development of Europe. The sites include currently active locations along the mid-Atlantic ridge, from the Canary Islands and the Azores in the
João Carlos Nunes, Michael Benton
doaj   +1 more source

Feeding ecology of Coryphaenoides rupestris from the mid-Atlantic Ridge. [PDF]

open access: yesPLoS ONE, 2010
The Macrourid fish roundnose grenadier, Coryphaenoides rupestris, is one of the most common benthopelagic fishes on the northern mid-Atlantic Ridge.
Odd Aksel Bergstad   +3 more
doaj   +1 more source

Seismic evidence for uniform crustal accretion along slow-spreading ridges in the equatorial Atlantic Ocean

open access: yesNature Communications, 2022
Uniform magmatic crust formed at the Mid-Atlantic Ridge in the equatorial Atlantic Ocean reveals a two-dimensional mantle upwelling facilitated by the large transform faults and the high concentration of volatiles in the primitive melt in the mantle.
Zhikai Wang, Satish C. Singh
doaj   +1 more source

Seismic Attenuation at the Equatorial Mid‐Atlantic Ridge Constrained by Local Rayleigh Wave Analysis From the PI‐LAB Experiment

open access: yesGeochemistry, Geophysics, Geosystems, 2021
The ocean lithosphere represents a simple realisation of the tectonic plate, offering a unique opportunity to better understand its physical and chemical properties in relationship to those of the underlying asthenosphere.
Utpal Saikia   +3 more
doaj   +1 more source

Trace Element Evidence of Subduction-Modified Mantle Material in South Mid-Atlantic Ridge 18–21°S Upper Mantle

open access: yesJournal of Marine Science and Engineering, 2023
Mid-ocean ridge basalts (MORBs), produced at mid-ocean ridge where the continents and subduction zones are distant, are the product of partial melting of the upper mantle and their chemical composition can provide information about the mantle itself. The
Tianxiao Ji, Zhigang Zeng
doaj   +1 more source

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