Results 121 to 130 of about 73,435 (259)

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

Petrology and origin of amoeboid olivine aggregates in CR chondrites [PDF]

, 2004
M. K. Weisberg, H. C. Connolly, D. S. Ebel   +2 more
openalex   +1 more source

Hawaiian beaches as natural analogues for enhanced silicate weathering of olivine

Environmental Research Letters
Silicate weathering induces atmospheric CO _2 sequestration through alkalinity release, which is Earth’s prime mechanism for regulating the climate. Marine enhanced rock weathering (mERW) seeks to accelerate this process by distributing fast-weathering ...
Matthias Kreuzburg, Astrid Hylén, Devon B Cole, Stephen J Romaniello, Chandra W Winardhi, Veerle Cnudde, Daniel A Frick, Josephine Barnett, Kirsten P Nicolaysen, Filip J R Meysman   +9 more
doaj   +1 more source

Repository: Global distribution and geological context of co-existing occurrences of olivine-rich and plagioclase-rich materials on the lunar surface

, 2021
S. Yamamoto, M. Ohtake, Yuzuru Karouji, M. Kayama, Hiroshi Nagaoka, Yoshiaki Ishihara, Jun-ich Haruyama   +6 more
openalex   +2 more sources

Olivine Phenocryst Growth in Hawaiian Tholeiites: Evidence for Supercooling [PDF]

, 2011
Sven Maaløe
openalex   +1 more source

Siberian flood basalt magmatism and Mongolia-Okhotsk slab dehydration [PDF]

, 2008
Experimental data combined with numerical calculations suggest that fast subducting slabs are cold enough to carry into the deep mantle a significant portion of the water in antigorite, which transforms with increasing depth to phase A and then to phase ...
Alexei V. Ivanov, Konstantin D. Litasov
core   +1 more source

Kimberlitic olivine

, 2009
Kimberlite hosts two populations of olivine that are distinguished on the basis of grain size and morphology; the populations are commonly described genetically as xenocrysts and phenocrysts. Recent studies of zoning patterns in kimberlitic olivine phenocrysts have cast doubt on the actual origins of the smaller olivine crystals. Here, we elucidate the
openaire   +1 more source

Asteroidal differentiation processes deduced from ultramafic achondrite ureilite meteorites [PDF]

, 2006
Ureilite meteorites are partial melt residues of an asteroid-sized object. They record the differentiation process that transformed many asteroids during the earliest stages of solar system ...
Downes, H., Franchi, I.A., Hudon, P., Mittlefehldt, D.W., Romanek, C.S.   +4 more
core   +1 more source

Structural Evolution of Olivine during Mechanochemically Assisted Mineral Carbonation under CO₂ Flow

Inorganics
The mechanism of the mechanically assisted mineral carbonation of commercial olivine under the flow of a carbon dioxide (CO2)/nitrogen (N2) mixture has been elucidated by ex situ powder X-ray diffraction and Fourier-transform infrared spectroscopy.
Costantino Cau, Alessandro Taras, Gabriele Masia, Laura Caggiu, Stefano Enzo, Sebastiano Garroni, Fabrizio Murgia, Gabriele Mulas   +7 more
doaj   +1 more source

The Mobility of Major and Trace Elements in EOC Minerals on Parent Chondrite Bodies

Geosciences
The combined EPMA and SIMS study of the geochemical features of olivine, low-Ca pyroxene and plagioclase in equilibrated ordinary chondrites (EOCs) has revealed the effect of thermal metamorphism on trace element concentrations in EOC silicate minerals ...
Kristina Sukhanova, Sergey Skublov
doaj   +1 more source