Results 41 to 50 of about 66,782 (266)

Geometrically necessary dislocation densities in olivine obtained using high-angular resolution electron backscatter diffraction [PDF]

, 2016
© 2016 The AuthorsDislocations in geological minerals are fundamental to the creep processes that control large-scale geodynamic phenomena. However, techniques to quantify their densities, distributions, and types over critical subgrain to polycrystal ...
Hansen, L, Wallis, D, Wilkinson, A
core   +1 more source

Extrinsic and intrinsic strength of amorphous olivine films [PDF]

European 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, R. Dohmen, C. O. W. Trost, C. Mitterer, P. Cordier, P. Cordier, O. Glushko   +6 more
doaj   +1 more source

Temperature effects on the 15-85-micron spectra of olivines and pyroxenes [PDF]

, 2001
Far-infrared spectra of laboratory silicates are normally obtained at room temperature even though the grains responsible for astronomical silicate emission bands seen at wavelengths >20 micron are likely to be at temperatures below ~150 K.
A. M. Hofmeister, C. Lee, C. Tucker, Hofmeister, Hofmeister, J. E. Bowey, M. J. Barlow, P. A. R. Ade   +7 more
core   +2 more sources

The Olivine Horizon of the Layered Monchegorsk Pluton (Kola Region, Russia): Additional Magma Injection Based on Integrated Geological and Geochronological Data

Geosciences, 2023
The paper presents the first SIMS SHRIMP U-Pb data for zircon from an olivine horizon within the Nyud intrusion of the ore-bearing layered Monchegorsk pluton (Monchepluton) in the Kola Region, Russia.
Victor Chashchin, Sergey Sergeev
doaj   +1 more source

Olivine avoidance behaviour by marine gastropods (Littorina littorea L.) and amphipods (Gammarus locusta L.) within the context of ocean alkalinity enhancement

Ecotoxicology and Environmental Safety
Gigaton scale atmospheric carbon dioxide (CO2) removal (CDR) is needed to keep global warming below 1.5 °C. Coastal enhanced olivine weathering is a CDR technique that could be implemented in coastal management programmes, but its CO2 sequestration ...
Gunter Flipkens, Vincent Dujardin, Jordy Salden, Kyle T’Jollyn, Raewyn M. Town, Ronny Blust   +5 more
doaj   +1 more source

Oxidation during magma mixing recorded by symplectites at Kusatsu–Shirane Volcano, Central Japan

Earth, Planets and Space, 2020
Kusatsu–Shirane Volcano is an active Quaternary andesitic-to-dacitic volcano located in the Central Japan Arc. We conducted a detailed petrological investigation of orthopyroxene (opx)–magnetite (mt) symplectites associated with olivine in the Sessho ...
Kenta Ueki, Mutsuko Inui, Kenta Matsunaga, Naoya Okamoto, Kazuki Oshio   +4 more
doaj   +1 more source

Mafic alkaline metasomatism in the lithosphere underneath East Serbia: evidence from the study of xenoliths and the host alkali basalts [PDF]

, 2010
Effects of mafic alkaline metasomatism have been investigated by a combined study of the East Serbian mantle xenoliths and their host alkaline rocks.
Cvetkovic, V., Downes, Hilary, Hock, V., Lazarov, M., Prelevic, D.   +4 more
core   +1 more source

Oxygen Isotopic Compositions of San Carlos Olivine Standard NMNH 111312–42

Applied Sciences
San Carlos olivine geostandard developed by Gene Jarosewich and co-workers at the Smithsonian Institution, named NMNH 111312–44, was the most widespread olivine geostandard used in olivine oxygen isotopic determination.
Kezhen Qu, Hongjie Wu, Guo-Qiang Tang
doaj   +1 more source

Orbital Observations Suggest Decoupled Olivine and Carbonate Enrichments in Jezero Crater

Geophysical Research Letters
It has been hypothesized that the olivine‐ and carbonate‐bearing units within Jezero crater are part of the broader olivine‐carbonate rock unit found in the Nili Fossae region.
Cheng Ye, Christopher S. Edwards, Mark R. Salvatore, A. Deanne Rogers, Timothy D. Glotch   +4 more
doaj   +1 more source

GENESIS OF EXTREMELY MAGNESIAN DAUGHTER OLIVINE OF SECONDARY MELT INCLUSIONS FROM OLIVINE MACROCRYSTS IN KIMBERLITE FROM THE UDACHNAYA-EAST PIPE (SIBERIAN CRATON)

Геодинамика и тектонофизика
The paper presents the results of studies of daughter olivine within secondary melt inclusions marking healed cracks in olivine macrocrysts from unserpentinized kimberlite from the Udachnaya-East pipe.
A. A. Tarasov, A. V. Golovin
doaj   +1 more source