Results 31 to 40 of about 45,086 (374)
Carbonation and serpentinization of diopsidite in the Altun Mountains, NW China
Scientific Reports, 2022 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
doaj +1 more source
Mantle wedge serpentinization effects on slab dips
Terrestrial, Atmospheric and Oceanic Sciences, 2017 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
doaj +1 more source
Frontiers in Earth Science, 2020 The origin of methane and light hydrocarbons (HCs) in natural fluids from serpentinization has commonly been attributed to the abiotic reduction of oxidized carbon by H2 through Fischer-Tropsch-type (FTT) reactions. Multiple experimental serpentinization
S. Barbier +10 more
semanticscholar +1 more source
Fluid‐Mantle Interaction Along the Mariana Convergent Margin
Geochemistry, Geophysics, Geosystems, 2023 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
doaj +1 more source
Frontiers in Microbiology, 2023 The demonstration by Ivan Barnes et al. that the serpentinization of fresh Alpine-type ultramafic rocks results in the exhalation of hot alkaline fluids is foundational to the submarine alkaline vent theory (AVT) for life’s emergence to its ‘improbable ...
Michael J. Russell
doaj +1 more source
Are spherulitic lacustrine carbonates an expression of large-scale mineral carbonation? : A case study from the East Kirkton Limestone, Scotland [PDF]
, 2018 BP Exploration Co. is thanked for funding, and particularly the Carbonate Team for supporting this research and for fruitful discussions. West Lothian Council and Scottish Natural Heritage are thanked for allowing access and permission for sampling the ...
Billing, Ian +11 more
core +1 more source
Green Processing and Synthesis, 2023 Much effort was taken to elucidate how organic precursors appeared in early Earth, and attention was paid to two impact experiments: hypervelocity impacts by a propellant gun which simulated meteorite collides to Earth forming fatty acids and amino acids
Kugimiya Koichi +4 more
doaj +1 more source
Serpentinization-Associated Mineral Catalysis of the Protometabolic Formose System
Life, 2023 The formose reaction is a plausible prebiotic chemistry, famed for its production of sugars. In this work, we demonstrate that the Cannizzaro process is the dominant process in the formose reaction under many different conditions, thus necessitating a ...
Arthur Omran +6 more
doaj +1 more source
Giant serpentine aneurysm [PDF]
BMJ Case Reports, 2016 A 34-year-old man with a history of seizures presented after a generalised seizure. An MRI of the brain and MR angiogram of the brain (figure 1) were performed, demonstrating a partially thrombosed, giant intracranial aneurysm involving the left anterior cerebral artery (ACA).
Ramesh, Grandhi +3 more
openaire +2 more sources
Carbonate alteration of ophiolitic rocks in the Arabian–Nubian Shield of Egypt: sources and compositions of the carbonating fluid and implications for the formation of Au deposits [PDF]
, 2016 Ultramafic portions of ophiolitic fragments in the Arabian–Nubian Shield (ANS) show pervasive carbonate alteration forming various degrees of carbonated serpentinites and listvenitic rocks.
Azer, Mokhles K. +9 more
core +2 more sources