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The presence of ancient subducted oceanic crust contributes to seismic anomalies in Large Low Shear Velocity Provinces [PDF]

open access: yesCommunications Earth & Environment
Large Low Shear Velocity Provinces (LLSVPs) near the core-mantle boundary (CMB) are key yet enigmatic structures. Their origin is often linked to the accumulation of subducted mid-ocean ridge basalt (MORB), but computational models question MORB as the ...
Ewa Krymarys   +3 more
doaj   +2 more sources

Size and Composition of the MORB+OIB Mantle Reservoir

open access: yesGeochemistry, Geophysics, Geosystems, 2022
Most efforts to characterize the size and composition of the mantle that complements the continental crust have assumed that the mid‐ocean ridge basalt (MORB) source is the incompatible‐element depleted residue of continental crust extraction. The use of
A. W. Hofmann, C. Class, S. L. Goldstein
doaj   +2 more sources

Relationship Between D‐MORB and E‐MORB Magmatism During Crustal Accretion at Mid‐Ocean Ridges: Evidence From the Masirah Ophiolite (Oman)

open access: yesGeochemistry, Geophysics, Geosystems
Enriched mid‐ocean ridge basalts (E‐MORB) commonly erupt at mid‐ocean ridges (MOR) and seamounts, but their relationship to “depleted” MORB (D‐MORB) and the processes controlling their magmatic evolution at MORs are not fully understood, hence raising ...
Max N. Jansen   +4 more
doaj   +4 more sources

Mineral Chemistry and Whole-rock Geochemistry of Pillow lava from the Arangue Complex, Southeastern Hormozgan, Iran [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2021
The Upper Cretaceous Arangue complex is located in the Makran zone at the SE of Iran. The complex consists of ultra-mafic rocks, microgabbro dykes, pillow lavas and lime stones that pillow lavas are mainly exposed to the northwest and southeast part of ...
Elham Nazari Zadeh   +2 more
doaj   +1 more source

Petrography and Geochemistry of ophiolitic basalts from Marivan-Palangan region (Zagros, western Iran) [PDF]

open access: yesپترولوژی, 2019
Basaltic rocks from Marivan-Palangan ophiolite suite (MPO), Zagros suture zone, western Iran, are studied for magmatic evolution, and source rock partial melting processes.
Azad Karimi   +2 more
doaj   +1 more source

Are GMI gangliosidosis and Morquio type B two different disorders or part of one phenotypic spectrum?

open access: yesJIMD Reports, 2021
Monosialotetrahexosylganglioside (GMI) gangliosidosis and Morquio type B (MorB) are two lysosomal storage disorders (LSDs) caused by the same enzyme deficiency, β‐galactosidase (βgal).
Sandra D. K. Kingma   +3 more
doaj   +1 more source

Zircon dating of the basalt and felsic dyke in Haveri, SW Finland [PDF]

open access: yesBulletin of the Geological Society of Finland, 2022
The E-MORB type Haveri basalt differs from the volcanic arc type rocks in the Tampere belt showing no subduction signature. It is considered to have formed in a marginal basin prior to the volcanic arc. We present here zircon U-Pb dating on two samples.
Jaakko Kara   +2 more
doaj   +1 more source

Evaluation of the Impact of Land Use Changes on Soil Erosion in the Tropical Maha Oya River Basin, Sri Lanka

open access: yesLand, 2022
Soil degradation is a serious environmental issue in many regions of the world, and Sri Lanka is not an exception. Maha Oya River Basin (MORB) is one of the major river basins in tropical Sri Lanka, which suffers from regular soil erosion and degradation.
Chathura Palliyaguru   +6 more
doaj   +1 more source

The Neodymium Stable Isotope Composition of the Oceanic Crust: Reconciling the Mismatch Between Erupted Mid-Ocean Ridge Basalts and Lower Crustal Gabbros

open access: yesFrontiers in Earth Science, 2020
The trace element and isotopic compositions of mid-ocean ridge basalts (MORB) provide an important cornerstone for all studies seeking to understand mantle evolution.
Alex J. McCoy-West   +3 more
doaj   +1 more source

Geochemistry of volcanic rocks and dykes from the Remeshk-Mokhtarabad and Fannuj-Maskutan Ophiolites (Makran Accretionary Prism, SE Iran): New constraints for magma generation in the Middle East neo-Tethys

open access: yesGeosystems and Geoenvironment, 2023
The Remeshk-Mokhtarabad and Fannuj-Maskutan ophiolites represent two major ophiolitic units in the North Makran Domain (Makran Accretionary Prism).
Emilio Saccani   +6 more
doaj   +1 more source

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