Results 21 to 30 of about 76,410 (310)

Spatial Pattern Investigation of Olivine on Mars using OMEGA and MOLA Remote Sensing Data: A Case Study at Valles Marineris and Nili Fossae [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Olivine is a mineral indicative of water activity in the mantle, and its presence can elucidate the petrological evolution and history of magmatic igneous rocks. In this work, we conducted a preliminary investigation into the characteristics and patterns
L. Jiao   +12 more
doaj   +1 more source

Formation mechanisms of ringwoodite: clues from the Martian meteorite Northwest Africa 8705

open access: yesEarth, Planets and Space, 2021
Ringwoodite and wadsleyite are the high-pressure polymorphs of olivine, which are common in shocked meteorites. They are the major constituent minerals in the terrestrial mantle.
Ting Zhang   +7 more
doaj   +1 more source

CO2 Carbonation of Olivine-Admixed Marine Clay: Suitability for Bottom Liner Application

open access: yesApplied Sciences, 2021
This paper focuses on employing an optimization approach in evaluating the hydraulic conductivity (HC) of CO2-carbonated olivine-admixed marine clay for possible utilization as a hydraulic barrier in engineered landfills to minimize leachate migration ...
Endene Emmanuel   +3 more
doaj   +1 more source

Evolution of Olivine Fabrics During Deep Subduction and Exhumation of Continental Crust: Insights From the Yinggelisayi Garnet Lherzolite, South Altyn, NW China

open access: yesGeochemistry, Geophysics, Geosystems, 2022
The different olivine fabrics in ultramafic rocks have been widely used to discuss past tectonic settings, given that the olivine fabrics vary with pressure, temperature and water content.
Guojian Geng   +9 more
doaj   +1 more source

Response of a Coastal Microbial Community to Olivine Addition in the Muping Marine Ranch, Yantai

open access: yesFrontiers in Microbiology, 2022
Spreading olivine powder in seawater to enhance alkalinity through weathering reactions has been proposed as a potential solution to control atmospheric CO2 concentration.
Hongwei Ren   +22 more
doaj   +1 more source

The problematically short superwind of OH/IR stars - Probing the outflow with the 69 {\mu}m spectral band of forsterite [PDF]

open access: yes, 2013
Spectra of OH/IR stars show prominent spectral bands of crystalline olivine (Mg$_{(2-2x)}$Fe$_{(2x)}$SiO$_{4}$). To learn more about the timescale of the outflows of OH/IR stars, we study the spectral band of crystalline olivine at 69 {\mu}m. The 69 {\mu}
Blommaert, J. A. D. L.   +6 more
core   +4 more sources

Olivine weathering in soil, and its effects on growth and nutrient uptake in Ryegrass (Lolium perenne L.): a pot experiment. [PDF]

open access: yesPLoS ONE, 2012
Mineral carbonation of basic silicate minerals regulates atmospheric CO(2) on geological time scales by locking up carbon. Mining and spreading onto the earth's surface of fast-weathering silicates, such as olivine, has been proposed to speed up this ...
Hein F M ten Berge   +5 more
doaj   +1 more source

Analyzing the Magnesium (Mg) Number of Olivine on the Lunar Surface and Its Geological Significance

open access: yesRemote Sensing, 2019
Olivine formation is directly related to Mg/Fe content. It is also significant in estimating the geological evolution of the moon. In this study, an estimation model of relative Mg number (Fo#) for lunar olivine was presented through multiple linear ...
Chao Zhou   +3 more
doaj   +1 more source

Ultramafic xenoliths from the Bearpaw Mountains, Montana, USA: evidence for multiple metasomatic events in the lithospheric mantle beneath the Wyoming craton [PDF]

open access: yes, 2004
Ultramafic xenoliths in Eocene minettes of the Bearpaw Mountains volcanic field (Montana, USA), derived from the lower lithosphere of the Wyoming craton, can be divided based on textural criteria into tectonite and cumulate groups. The tectonites consist
Abidin, M.S.Z.   +11 more
core   +2 more sources

Extrinsic and intrinsic strength of amorphous olivine films [PDF]

open access: yesEuropean Journal of Mineralogy
Nanoscale amorphous olivine (a-olivine) intracrystalline layers, which can form in olivine polycrystals under high stress, has the potential to influence the mechanical properties of the rock in the vicinity of the brittle–ductile transition.
J. Jarnot   +6 more
doaj   +1 more source

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