Results 11 to 20 of about 1,324 (249)
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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Effect of water activity on rates of serpentinization of olivine
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
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Hydrothermal remobilization platinum group elements and their secondary minerals in chromitite deposits of the Eastern Sayan ophiolites (Russia) [PDF]
Serpentinization is an important post-magmatic process in spreading and subducted zones. This process is the cause of the remobilization and redistribution of highly mobile elements, platinum group elements (PGE) and base metals. Secondary platinum group
Kiseleva Ol’ga +3 more
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Mantle hydration along outer-rise faults inferred from serpentinite permeability
Recent geophysical surveys indicate that hydration (serpentinization) of oceanic mantle is related to outer-rise faulting prior to subduction. The serpentinization of oceanic mantle influences the generation of intermediate-depth earthquakes and ...
Kohei Hatakeyama +3 more
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Serpentinization: Connecting Geochemistry, Ancient Metabolism and Industrial Hydrogenation
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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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
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Carbonation and serpentinization of diopsidite in the Altun Mountains, NW China
Mineral carbonation of mafic–ultramafic rocks has been highlighted as a promising way for permanent carbon capture and storage. Carbonatization involves the release of Ca, Mg and Fe from silicate minerals by dissolution and reaction in the aqueous phase ...
Dingkui Zhou +7 more
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Mantle wedge serpentinization effects on slab dips
The mechanical coupling between a subducting slab and the overlying mantle wedge is an important factor in controlling the subduction dip angle and the flow in mantel wedge. This paper investigates the role of the amount of mantle serpentinization on the
Eh Tan
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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
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Fluid‐Mantle Interaction Along the Mariana Convergent Margin
Active serpentinite mud volcanoes in the forearc region of the Izu‐Bonin‐Mariana system represent an excellent natural laboratory for studying the geochemical processes along convergent plate margins and the associated forearc. During IODP Expedition 366,
Irena Miladinova +2 more
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