Results 31 to 40 of about 24,591 (277)

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

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

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

open access: yesGeosciences, 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

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

Olivine—The Alteration Rock Star

open access: yesElements, 2023
Olivine is the main component of the Earth’s upper mantle, on which our tectonic plates rest. As such, olivine has been studied since the dawn of geology and is regarded as the storyteller of the Earth’s interior. Its physical and chemical properties provide insight into its creation in magmas and its voyage through the upper mantle.
Plümper, Oliver, Matter, Juerg
openaire   +3 more sources

Shear-Induced ringwoodite formation in the Martian shergottite Dar al Gani 670

open access: yes, 2013
Shock-produced melt veins in the Martian shergottite Dar al Gani 670 crosscut large olivine crystals. The upper part of one of these crystals appears to be sheared off and displaced along the shock vein.
Fritz, Jörg   +3 more
core   +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

Photocatalytic Water Splitting on the Lunar Surface: Prospects for In Situ Resource Utilization

open access: yesAdvanced Materials Interfaces, EarlyView.
Water has been found in craters on the moon nearby locations which are illuminated >80% of the time. Photocatalysis uses energy from sunlight to drive chemical reactions such as water splitting to produce oxygen and hydrogen. It is a scalable technology that requires lighter equipment and utilizes resources available on the moon. ABSTRACT The discovery
Ranjani Kalyan   +6 more
wiley   +1 more source

Synergistic CO2 Removal via Enhanced Olivine Weathering and Diatom Growth in the Ocean

open access: yesOcean-Land-Atmosphere Research
Enhancing the alkalinity of the ocean is a promising approach for CO2 removal by promoting marine carbon sequestration. Olivine is a key candidate material for enhancing alkalinity owing to its release of silicates when dissolved in seawater.
Enquan Zhang   +8 more
doaj   +1 more source

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