Results 1 to 10 of about 45,086 (374)

Effect of water activity on rates of serpentinization of olivine [PDF]

open access: yesNature Communications, 2017
Serpentinization of mantle rocks occurs in a variety of tectonic settings, but the controls on the rates of serpentinization are poorly constrained. Here, the authors developed anin situexperimental method to show that the rate of serpentinization is ...
Hector M. Lamadrid   +6 more
doaj   +6 more sources

Serpentinization as the source of energy, electrons, organics, catalysts, nutrients and pH gradients for the origin of LUCA and life [PDF]

open access: yesFrontiers in Microbiology, 2023
Serpentinization in hydrothermal vents is central to some autotrophic theories for the origin of life because it generates compartments, reductants, catalysts and gradients.
Loraine Schwander   +5 more
doaj   +3 more sources

Finding natural $$\hbox {H}_{2}$$ generation zones in Midcontinent Rift in the U.S. by identifying the geophysical signatures of a serpentinization system [PDF]

open access: yesScientific Reports
Hydrogen is gaining attention as an energy source for its zero CO2 emission. Hydrogen may be manufactured by breaking down water using solar and wind energy. However, the high cost of manufactured hydrogen makes it uneconomical.
Mengli Zhang, Yaoguo Li
doaj   +2 more sources

Interrelation between rifting, faulting, sedimentation, and mantle serpentinization during continental margin formation—including examples from the Norwegian Sea [PDF]

open access: yesGeochemistry, Geophysics, Geosystems, 2013
The conditions permitting mantle serpentinization during continental rifting are explored within 2‐D thermotectonostratigraphic basin models, which track the rheological evolution of the continental crust, account for sediment blanketing effects, and ...
Lars H. Rüpke   +3 more
doaj   +2 more sources

Serpentinization of mantle‐derived peridotites at mid‐ocean ridges: Mesh texture development in the context of tectonic exhumation

open access: yesGeochemistry, Geophysics, Geosystems, 2014
At slow spreading ridges, axial detachment faults exhume mantle‐derived peridotites and hydrothermal alteration causes serpentinization in a domain extending more than 1 km next to the fault.
Stéphane Rouméjon, Mathilde Cannat
doaj   +2 more sources

Finite‐frequency wave propagation through outer rise fault zones and seismic measurements of upper mantle hydration [PDF]

open access: yesGeophysical Research Letters, 2016
Effects of serpentine‐filled fault zones on seismic wave propagation in the upper mantle at the outer rise of subduction zones are evaluated using acoustic wave propagation models.
Nathaniel C. Miller, Daniel Lizarralde
doaj   +2 more sources

Global Hydrogen Production During High‐Pressure Serpentinization of Subducting Slabs

open access: yesGeochemistry, Geophysics, Geosystems, 2023
Serpentinization is among the most important, and ubiquitous, geological processes in crustal–upper mantle conditions (
A. S. Merdith   +6 more
doaj   +1 more source

Successive phases of serpentinization and carbonation recorded in the Sivas ophiolite (Turkey), from oceanic crust accretion to post-obduction alteration

open access: yesBSGF - Earth Sciences Bulletin, 2022
The ophiolite of Sivas (Turkey) was studied in order to define the chronology of different alteration events related to a series of serpentinization and carbonation episodes. Six samples were investigated, representative of different types of ophicalcite
Lévy Dan   +6 more
doaj   +1 more source

Carbon assimilation strategies in ultrabasic groundwater: clues from the integrated study of a serpentinization-influenced aquifer [PDF]

open access: yes, 2020
© The Author(s), 2020. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Seyler, L. M., Brazelton, W. J., McLean, C., Putman, L. I., Hyer, A., Kubo, M. D.
Brazelton, William J.   +8 more
core   +2 more sources

δ60Ni and δ13C Composition of Serpentinites and Carbonates of the Tekirova Ophiolite, Turkey, and Meatiq Ophiolite, Egypt

open access: yesFrontiers in Earth Science, 2021
Nickel isotope fractionation patterns in continental ultramafic environments generally show a depletion of δ60Ni in weathered rocks and an enrichment in bedrock samples.
Anna Neubeck   +6 more
doaj   +1 more source

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