Results 41 to 50 of about 74,370 (266)

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

open access: yes, 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

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

open access: yesEarth, 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   +4 more
doaj   +1 more source

Generating porosity during olivine carbonation via dissolution channels and expansion cracks [PDF]

open access: yesSolid Earth, 2018
The olivine carbonation reaction, in which carbon dioxide is chemically incorporated to form carbonate, is central to the emerging carbon sequestration method using ultramafic rocks.
T. Xing   +4 more
doaj   +1 more source

Stratigraphy of the Hawai'i Scientific Drilling Project core (HSDP2): Anatomy of a Hawaiian shield volcano [PDF]

open access: yes, 2007
The Hawai'i Scientific Drilling Project (HSDP2) successfully drilled ∼3.1 km into the island of Hawai'i. Drilling started on Mauna Loa volcano, drilling 247 m of subaerial lavas before encountering 832 m of subaerial Mauna Kea lavas, followed by 2019 m ...
Baker, Michael   +3 more
core   +1 more source

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

open access: yesEcotoxicology 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   +5 more
doaj   +1 more source

High-Temperature Oxidation of Magnesium- and Iron-Rich Olivine under a CO2 Atmosphere: Implications for Venus

open access: yesRemote Sensing, 2023
Understanding crust–atmosphere interactions on Venus is fundamentally important to interpretations of Venus’ surface spectroscopic data. Olivine, in basaltic crust, is oxidized under a heated CO2 atmosphere.
Shan-Shan Zhong   +12 more
doaj   +1 more source

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

open access: yesApplied 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

open access: yesGeophysical 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   +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)

open access: yesГеодинамика 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

Bio‐Inspired Nanoarchitected LiFePO4 Cathodes

open access: yesAdvanced Functional Materials, EarlyView.
Lithium iron phosphate (LFP) is synthesized using a bio‐inspired method, using acidic macromolecules similar to those found in many calcareous mineralized organisms to modulate the morphology and crystal growth of LFP‐carbon composite particles. The observations from this process indicate a non‐classical crystallization process, which subsequently ...
Parawee Pumwongpitak   +8 more
wiley   +1 more source

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