Results 61 to 70 of about 2,033 (198)

Correction to: Quantifying the effects of hydrogen on carbon assimilation in a seafloor microbial community associated with ultramafic rocks. [PDF]

ISME J, 2022
Coskun ÖK, Vuillemin A, Schubotz F, Klein F, Sichel SE, Eisenreich W, Orsi WD.   +6 more
europepmc   +1 more source

Corundum Discovered by SuperCam and the Perseverance Rover at Jezero Crater, Mars

Geophysical Research Letters, Volume 53, Issue 16, 28 August 2026.
Abstract Mars is primarily composed of mafic mineral assemblages and their alteration products, but small, scattered rocks strewn across the landscape offer clues to greater petrological diversity. While traversing the Jezero crater rim, the Perseverance rover encountered several plagioclase‐rich light‐toned float rocks.
A. M. Ollila, O. Beyssac, A. Fau, O. Forni, E. Clavé, P. Beck, C. C. Bedford, V. Payre, E. Dehouck, S. A. Connell, J. A. Manrique, P. Pilleri, O. Gasnault, G. M. Martinez, A. Udry, S. Bernard, P. Gasda, T. Acosta‐Maeda, R. B. Anderson, T. S. J. Gabriel, F. Calef, J. F. Bell III, J. Maki, S. Schröder, C. Quantin‐Nataf, J. R. Johnson, B. Chide, K. Rammelkamp, F. Poulet, C. Royer, M. Rock, N. L. Lanza, S. K. Sharma, G. Lopez‐Reyes, T. Fouchet, J. Comellas, A. Zastrow, E. Cloutis, R. C. Wiens, A. Cousin, S. Maurice, S. Clegg, P. Bernardi, T. Nelson   +43 more
wiley   +1 more source

Peridotite weathering is the missing ingredient of Earth’s continental crust composition

Nature Communications, 2018
The concentration of Ni and Cr of the continental crust cannot be explained by formation models involving differentiated magmatic rocks. Here, the authors show that hydrothermal alteration and chemical weathering of ultramafic rock compensates for the ...
Andreas Beinlich, Håkon Austrheim, Vasileios Mavromatis, Ben Grguric, Christine V. Putnis, Andrew Putnis   +5 more
doaj   +1 more source

Quantifying the effects of hydrogen on carbon assimilation in a seafloor microbial community associated with ultramafic rocks. [PDF]

ISME J, 2022
Coskun ÖK, Vuillemin A, Schubotz F, Klein F, Sichel SE, Eisenreich W, Orsi WD.   +6 more
europepmc   +1 more source

Concomitant Mineral Carbonation and CO2 Reduction in Short‐Term Water‐Basalts Reaction: Difference Between Basaltic Glass and Basaltic Crystals

Global Challenges, Volume 10, Issue 8, August 2026.
Short‐term CO2–water reactions show that crystalline basalt undergoes more extensive carbonation than basaltic glass and is associated with detectable H2 and higher CO and CH4 concentrations. This contrast is consistent with the greater early reactivity of Fe‐ and Mg‐bearing crystalline phases, indicating that basalt mineralogy influences coupled ...
Andrea Pierozzi, Rémi Rateau, Andrea Orlando, Daniele Borrini, Franco Tassi, Juan Diego Rodriguez‐Blanco   +5 more
wiley   +1 more source

Compressional wave velocity measurements on mafic-ultramafic rocks under high aqueous fluid pressure and temperature help to explain low-velocity zones in the lithosphere. [PDF]

Sci Rep, 2021
Lebedev EB, Kern H, Pavlenkova NI, Lukanin OA, Lobanov KV, Zharikov AV, Popp T.   +6 more
europepmc   +1 more source

Mineralised ultramafic rocks in South Greenland

Rapport Grønlands Geologiske Undersøgelse, 1971
In 1960 several mineralised ultramafic boulders with a remarkable content of Pt were found by M. Loretan in the neighbourhood of Sarqa fjord in the Nanortalik district, South Greenland. This stimulated interest in a closer examination of the mafic and ultramafic rocks of South Greenland and in 1962 and 1963 J. P.
openaire   +2 more sources

Aluminum Phyllosilicate and Jarosite Formation Through Alteration of Reworked Al/Si‐Rich Volcaniclastic Sediments in Nili Fossae, Mars

Journal of Geophysical Research: Planets, Volume 131, Issue 8, August 2026.
Abstract Aluminum phyllosilicates occur in 1–10s of km2 exposures of Noachian (∼3.7 Ga) rock across Mars and typically appear stratigraphically above Fe/Mg‐phyllosilicates. These units have been proposed to represent pedogenic basalt weathering sequences.
S. R. Baker, B. L. Ehlmann
wiley   +1 more source

Petrochemistry of Ultramafic Rock in Baula - Pomalaa Ophiolite Complex, Southeast Sulawesi, Indonesia

JGEET: Journal of Geoscience, Engineering, Environment and Technology
Baula and Pomalaa Ophiolitic Complexes are part of East Sulawesi Ophiolite (ESO). The ultramafic rocks in the Baula and Pomalaa Ophiolite Complex mainly is peridotite and consist of harzburgite, lherzolite and olivine websterite, mostly serpentinized ...
Rio Irhan Mais Cendrajaya, Laode Ihksan Juarsan, Masri, Al Rubaiyn, Syahrul, Neni, Suci Ramadani, Hasria   +7 more
doaj   +1 more source

Uplift of the Transantarctic Mountains: Evidence for an Evolving and Long‐Lived Rayleigh‐Taylor Instability

Tectonics, Volume 45, Issue 8, August 2026.
Abstract Rayleigh‐Taylor instabilities within the upper mantle are investigated as a mechanism for the uplift of rift‐margin mountain ranges within the continents. Our focus is on the Transantarctic Mountains (TAM). These mountains form at the margin between East and West Antarctica and have been free from the effects of subduction for about 500 ...
Tim Stern, Simon Lamb, James D. P. Moore, Alec Yates   +3 more
wiley   +1 more source