Results 11 to 20 of about 45,086 (374)
Frontiers in Earth Science, 2021 Molecular hydrogen (H2) released during serpentinization of mantle rocks is one of the main fuels for chemosynthetic life. Processes of H2 production at slow-spreading mid-ocean ridges (MORs) have received much attention in the past. Less well understood
Elmar Albers +7 more
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Serpentinization: Connecting Geochemistry, Ancient Metabolism and Industrial Hydrogenation
Life, 2018 Rock–water–carbon interactions germane to serpentinization in hydrothermal vents have occurred for over 4 billion years, ever since there was liquid water on Earth. Serpentinization converts iron(II) containing minerals and water to magnetite
Martina Preiner +11 more
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Observational constraints on the process and products of Martian serpentinization
Science Advances, 2023 The alteration of olivine-rich rocks to serpentine minerals, (hydr)oxides, and aqueous hydrogen through serpentinization is long thought to have influenced the distribution of habitable environments on early Mars and the evolution of the early Martian ...
B. Tutolo, N. Tosca
semanticscholar +1 more source
Icarus (New York, N.Y. 1962), 2021 The discovery of a liquid ocean on Saturn's small moon Enceladus and evidence of modern hydrothermal activity provide an unexpected new environment in which to expand the search for life.
A. Zandanel +5 more
semanticscholar +1 more source
, 2021 Serpentinization is the process of hydroxylation of olivine-rich ultramafic rocks to produce minerals such as serpentine, brucite and magnetite. This process is commonly accompanied by Fe oxidation and release of H2, which can be involved in abiotic ...
A. Boutier +4 more
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Decreasing extents of Archean serpentinization contributed to the rise of an oxidized atmosphere
Nature Communications, 2021 At present, molecular hydrogen (H2) produced through Fe(II) oxidation during serpentinization of ultramafic rocks represents a small fraction of the global sink for O2 due to limited exposures of ultramafic rocks.
J. Leong, T. Ely, E. Shock
semanticscholar +1 more source
Seismic faults triggered early stage serpentinization of peridotites from the Samail Ophiolite, Oman
Earth and Planetary Science Letters, 2021 Serpentinization of mantle peridotites has first order effects on the rheology and tectonic behavior of the oceanic lithosphere, on the global water cycle, and on the biosphere at mid-oceanic ridges.
Claire Aupart +3 more
semanticscholar +1 more source
, 2021 Serpentinization, i.e. the hydrothermal alteration of ultramafic rocks, is an important and ubiquitous geologic process that occurs at slow- and ultraslow-spreading mid-ocean ridges, magma-poor passive margins, and subduction zones.
H. Lamadrid +3 more
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Dataset for H2, CH4 and organic compounds formation during experimental serpentinization
Geoscience Data Journal, 2021 Serpentinization refers to the alteration of ultramafic rocks that produces serpentines and secondary (hydr)oxides under hydrothermal conditions. Serpentinization can generate H2, which in turn can potentially reduce CO/CO2 and produce organic molecules ...
Fang Huang +12 more
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Geochimica et Cosmochimica Acta, 2020 A series of laboratory experiments was conducted to investigate serpentinization of olivine–pyroxene mixtures at 230 °C, with the objective of evaluating the effect of mixed compositions on Fe partitioning among product minerals, H2 generation, and ...
T. McCollom +5 more
semanticscholar +1 more source