Results 11 to 20 of about 3,074 (215)

Role of dunite in genesis of primitive MORB [PDF]

open access: yesProceedings of the Japan Academy, Series B, 2005
Dunite and related rocks from the Moho transition zone of the East Pacific Rise (EPR) and the Mid-Cayman Trough (MCT) are examined to know the spreading-rate dependence of their compositions. The rocks from both ridges are basically a reaction product between peridotite and primitive MORB. Despite the large difference of prevalent peridotite chemistry,
Arai, Shoji   +3 more
core   +4 more sources

Adsorption of hexavalent chromium on dunite

open access: yesWater Science and Technology, 2011
The paper presents and discusses the effect of various physicochemical parameters (e.g. pH, ionic strength, Cr(VI) initial concentration, amount of the adsorbent, temperature and contact time between metal ion and adsorbent) on the adsorption efficiency of Cr(VI) on dunite in aqueous solutions under atmospheric conditions.
Demetriou, Antri   +3 more
openaire   +4 more sources

Alteration of a Mantle‐Derived Dunite Boulder in Jezero Crater, Mars

open access: yesGeophysical Research Letters
In 2023, the Mars 2020 Perseverance rover explored the youngest preserved deposits on the Western fan of Jezero crater, Mars: a field of meter‐scale boulders dispersed above the previously explored sandstone and siltstone units.
E. L. Moreland   +10 more
doaj   +2 more sources

Microbial responses to ocean alkalinity enhancement in seasonally hypoxic coastal sediments [PDF]

open access: yesFrontiers in Microbiology
BackgroundEnhanced benthic weathering (EBW) is a promising marine carbon dioxide removal (mCDR) strategy, where alkaline minerals are added to the seafloor.
Stefanie Böhnke-Brandt   +6 more
doaj   +2 more sources

A dunite fragment in meteorite Northwest Africa (NWA) 11421: A piece of the Moon’s mantle [PDF]

open access: yes, 2023
A centimeter-sized fragment of dunite, the first recognized fragment of Moon mantle material, has been discovered in the lunar highlands breccia meteorite Northwest Africa (NWA) 11421.
Semprich, Julia, Treiman, Allan H.
core   +1 more source

Spectroscopic Investigations and Mineral Chemistry of Dunite from the Sargur Supracrustals (3 Ga) Greenstone Belt: Implications to Terrestrial Analogues for Lunar and Martian Dunite [PDF]

open access: yes, 2022
Archean Serpentinised dunite is important not only for understanding the evolution of the ultramafic deposit of magnesium, but also serves as a possible sink material for the carbon dioxide sequestration.
Borah, Rashmi R   +6 more
core   +1 more source

Age of the Dike Complex in the Dunite “core” of the Kamenushinsky Clinopyroxenite–Dunite Massif, Ural Platinum Belt, Middle Urals

open access: yes, 2021
The article presents the first U-Pb (SHRIMP–II) zircon age data on dikes cutting dunite of the Kamenushinsky dunite–clinopyroxenite–gabbroic massif in the Ural Platinum Belt. The dikes are made up of gabbro-pegmatite, hornblendite, and granite, the field
Stepanov, S. Yu.   +11 more
core   +1 more source

The basal dunite of the Precambrian mafic-ultramafic Narankavaara intrusion : Petrogenetic considerations and implications to exploration [PDF]

open access: yes, 2021
Several mafic-ultramafic layered intrusions were emplaced in the Fennoscandian Shield during wide-spread mantle-sourced magmatism at 2.5-2.4 Ga. The Narankavaara intrusion (surface area 5 x 30 km(2)), northeastern Finland, contains a 1.5-2 km thick basal
Heinonen, Jussi S.   +4 more
core   +1 more source

Deep Hydrocarbon Cycle

open access: yesGeophysical Monograph Series, Page 329-339., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Vladimir Kutcherov   +3 more
wiley  

+1 more source

The structural evolution of dunite and chromite ore from the Kharcheruz massif, the Polar Urals [PDF]

open access: yes, 2020
The Kharcheruz block of the Syumkeu ultramafic massif is a southern fragment of the Khadata ophiolitic belt, which closes the ophiolites of the Polar Urals in the north.
Yurichev, A. N., Chernyshov, Aleksey I.
core   +2 more sources

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