Results 31 to 40 of about 426,190 (338)

Pulsated Global Hydrogen and Methane Flux at Mid‐Ocean Ridges Driven by Pangea Breakup

open access: yesGeochemistry, Geophysics, Geosystems, 2020
Molecular hydrogen production occurs through the serpentinization of mantle peridotite exhumed at mid‐ocean ridges. Hydrogen is considered essential to sustain microbial life in the subsurface; however, estimates of hydrogen flux through geological time ...
Andrew S. Merdith   +5 more
doaj   +1 more source

Slipper Limpet (Crepidula fornicata) Shells Support In Vitro Osteogenesis of Human Adipose-Derived Stem Cells

open access: yesMarine Drugs, 2023
This study aimed to investigate a cost-effective alternative to man-made calcium phosphate ceramics for treating bone defects. The slipper limpet is an invasive species in European coastal waters, and its shells composed of calcium carbonate could ...
Arianna De Mori   +3 more
doaj   +1 more source

Cenozoic plate driving forces [PDF]

open access: yes, 1995
Past studies of plate driving forces have concluded that the forces due to subducted slabs in the upper mantle and those due to the thickening of the oceanic lithosphere are the principal driving forces. We reexamine the balance of driving forces for the
Lithgow‐Bertelloni, C, Richards, MA
core   +1 more source

Evaluation of Small Molecular Polypeptides from the Mantle of Pinctada Martensii on Promoting Skin Wound Healing in Mice

open access: yesMolecules, 2019
Skin wound healing, especially chronic wound healing, is a common challenging clinical problem. It is urgent to broaden the sources of bioactive substances that can safely and efficiently promote skin wound healing.
Faming Yang   +4 more
doaj   +1 more source

Calmodulin regulates the calcium homeostasis in mantle of Crassostrea gigas under ocean acidification

open access: yesFrontiers in Marine Science, 2022
The biosynthesis of shell is a complicated calcification process in the marine bivalve, which can be severely impacted by ocean acidification (OA). Calmodulin (CaM) is a pivotal calcium regulator and thought to be crucial for calcification.
Xiaoyu Xin   +25 more
doaj   +1 more source

The Origin of Earth's Mantle Nitrogen: Primordial or Early Biogeochemical Cycling?

open access: yesGeochemistry, Geophysics, Geosystems, 2022
Earth's mantle nitrogen (N) content is comparable to that found in its N‐rich atmosphere. Mantle N has been proposed to be primordial or sourced by later subduction, yet its origin has not been elucidated.
H. Kurokawa   +7 more
doaj   +1 more source

Cenozoic mountain building and topographic evolution in Western Europe: impact of billions of years of lithosphere evolution and plate kinematics

open access: yesBSGF - Earth Sciences Bulletin, 2021
The architecture and tectono-magmatic evolution of the lithosphere of Europe are the result of a succession of subduction, rifting and inputs from plumes that have modified the lithospheric mantle since the Neoproterozoic (750–500 Ma).
Mouthereau Frédéric   +13 more
doaj   +1 more source

Functional Connectivity Linked to Cognitive Recovery After Minor Stroke

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Patients with minor stroke exhibit slowed processing speed and generalized alterations in functional connectivity involving frontoparietal cortex (FPC). The pattern of connectivity evolves over time. In this study, we examine the relationship of functional connectivity patterns to cognitive performance, to determine ...
Vrishab Commuri   +7 more
wiley   +1 more source

Trace element mass balance in hydrous adiabatic mantle melting: The Hydrous Adiabatic Mantle Melting Simulator version 1 (HAMMS1)

open access: yesGeochemistry, Geophysics, Geosystems, 2014
A numerical mass balance calculation model for the adiabatic melting of a dry to hydrous peridotite has been programmed in order to simulate the trace element compositions of basalts from mid‐ocean ridges, back‐arc basins, ocean islands, and large ...
Jun‐Ichi Kimura, Hiroshi Kawabata
doaj   +1 more source

Age and Geochemistry of High Arctic Large Igneous Province Tholeiitic Magmatism in NW Axel Heiberg Island, Canada

open access: yesGeochemistry, Geophysics, Geosystems, 2023
The Cretaceous High Arctic Large Igneous Province (HALIP) in Canada involved extrusion of continental flood basalts (CFBs) at 130–120 Ma and 100‐95 Ma and emplacement of an extensive sill and dike network that intersected the Carboniferous to Paleogene ...
F. M. Deegan   +4 more
doaj   +1 more source

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