Results 41 to 50 of about 45,086 (374)

Intact polar lipidome and membrane adaptations of microbial communities inhabiting serpentinite-hosted fluids

open access: yesFrontiers in Microbiology, 2023
The generation of hydrogen and reduced carbon compounds during serpentinization provides sustained energy for microorganisms on Earth, and possibly on other extraterrestrial bodies (e.g., Mars, icy satellites).
Kaitlin R. Rempfert   +7 more
doaj   +1 more source

Giant serpentine aneurysms [PDF]

open access: yesNeurosurgical Focus, 2009
Segal and McLaurin first described giant serpentine aneurysms, based on their distinct angiographic features, in 1977. These lesions are ≥ 25 mm, partially thrombosed aneurysms with a patent, serpiginous vascular channel that courses through the aneurysm.
Lana D, Christiano   +3 more
openaire   +2 more sources

Palladium, platinum, and gold distribution in serpentinite seamounts in the Mariana and Izu-Bonin forearcs: evidence from Leg 125 fluids and serpentinites

open access: yes, 1992
Palladium, platinum, and gold were analyzed for 20 interstitial water samples from Leg 125. No Pd or Pt was detected in fluids from serpentinite muds from Conical Seamount in the Mariana forearc, indicating that low-temperature seawater-peridotite ...
Hall, G. E. M.   +2 more
core   +2 more sources

Prebiotic Organic Microstructures [PDF]

open access: yes, 2011
Micro- and sub-micrometer spheres, tubules and fiber-filament soft structures have been synthesized in our experiments conducted with 3 MeV proton irradiations of a mixture of simple inorganic constituents, CO, N2 and H2O.
A Yoshihara   +26 more
core   +2 more sources

Deep mantle serpentinization in subduction zones: Insight from in situ B isotopes in slab and mantle wedge serpentinites

open access: yes, 2020
Serpentinization occurs both within the seafloor, when seawater percolates through fractures to alter underlying peridotite, and in subduction zones, when aqueous fluids from the dehydration of the slab are released within the subduction channel.
Céline Martin   +4 more
semanticscholar   +1 more source

Serpentinization as a route to liberating phosphorus on habitable worlds

open access: yesGeochimica et Cosmochimica Acta, 2020
Planetary habitability is in part governed by nutrient availability, including the availability of the element phosphorus. The nutrient phosphorus plays roles in various necessary biochemical functions, and its biogeochemical cycling has been proposed ...
M. Pasek   +7 more
semanticscholar   +1 more source

Constraints on Bend‐Faulting and Mantle Hydration at the Marianas Trench From Seismic Anisotropy

open access: yesGeophysical Research Letters, 2023
Subduction zones are a key link between the surface water cycle and the solid Earth, as the incoming plate carries pore water and hydrous minerals into the subsurface.
Hannah F. Mark   +2 more
doaj   +1 more source

Sampling methane in basalt on Earth and Mars [PDF]

open access: yes, 2013
Peer reviewedPublisher ...
Blamey, Nigel J F   +2 more
core   +1 more source

Measurement of Volume Change and Mass Transfer During Serpentinization: Insights From the Oman Drilling Project

open access: yesJournal of Geophysical Research: Solid Earth, 2020
Serpentinization plays a key role on the evolution of the physicochemical properties of the mantle lithosphere. The rate of serpentinization reactions is controlled by the transport of fluid, which itself depends on volume change during reaction. Element
B. Malvoisin   +4 more
semanticscholar   +1 more source

Photochemical enrichment of deuterium in Titan's atmosphere: new insights from Cassini-Huygens [PDF]

open access: yes, 2008
Cassini-Huygens data are used to re-examine the potential sources of the D/H enhancement over solar, measured in methane, in Titan's atmosphere. Assuming that the system is closed with respect to carbon, the use of constraints from the Huygens probe for ...
Audrey Moudens   +7 more
core   +4 more sources

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