Results 21 to 30 of about 28,848 (258)

Corrigendum to: A Thermodynamic Model for the Subsolidus Evolution and Melting of Peridotite

open access: yesJournal of Petrology, 2021
We present a structural update to the thermodynamic model for calculating peridotite phase relations and melt compositions at 0·01 to 60 kbar and from 600 °C to the peridotite liquidus in the system K2O–Na2O–CaO–FeO–MgO–Al2O3–SiO2–TiO2–Fe2O3–Cr2O3 ...
E. Tomlinson, T. Holland
semanticscholar   +1 more source

Atomic structure and physical properties of peridotite glasses at 1 bar

open access: yesFrontiers in Earth Science, 2023
Earth’s mantle, whose bulk composition is broadly peridotitic, likely experienced periods of extensive melting in its early history that formed magma oceans and led to its differentiation and formation of an atmosphere. However, the physical behaviour of
Charles Le Losq   +2 more
doaj   +1 more source

Platinum Group Element Traces of CAMP Volcanism Associated With Low‐Latitude Environmental and Biological Disruptions

open access: yesGeophysical Monograph Series, Page 263-304., 2021

Exploring the links between Large Igneous Provinces and dramatic environmental impact

An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Jessica H. Whiteside   +3 more
wiley  

+1 more source

Diamond and Other Exotic Mineral-Bearing Ophiolites on the Globe: A Key to Understand the Discovery of New Minerals and Formation of Ophiolitic Podiform Chromitite

open access: yesCrystals, 2021
Ophiolite-hosted diamond from peridotites and podiform chromitites significantly differs from those of kimberlitic diamond and ultra-high pressure (UHP) metamorphic diamond in terms of occurrence, mineral inclusion, as well as carbon and nitrogen ...
Fei Liu   +3 more
doaj   +1 more source

Water in the Supra‐Subduction‐Zone Mantle of the Mariana‐Izu‐Bonin Forearc: Constraints From Peridotitic Orthopyroxene

open access: yesGeochemistry, Geophysics, Geosystems, 2021
Orthopyroxene was analyzed as a proxy for water supra‐subduction‐zone peridotite by polarized infrared radiation. Samples from Conical and Torishima seamounts, Mariana‐Izu‐Bonin forearc (ODP‐Leg 125), have very similar average H2O contents of 215 ppm ...
J. Gose, E. Schmädicke
doaj   +1 more source

Characteristics of Chromite Deposits at North Kabaena District, Bombana Regency, Southeast Sulawesi Province, Indonesia

open access: yesJGEET: Journal of Geoscience, Engineering, Environment and Technology, 2021
The study area is located in North Kabaena District, Bombana Regency, Southeast Sulawesi. This paper is aimed to describe characacristics of chromite deposits.
Hasria   +7 more
doaj   +1 more source

Braided peridotite sills and metasomatism in the Rum Layered Suite, Scotland [PDF]

open access: yes, 2020
The Rum Eastern Layered Intrusion (ELI; Scotland) is an open-system layered intrusion constructed of 16 macro-rhythmic units. Each of the macro-rhythmic units consists of a peridotite base and a troctolite (+/- gabbro) top, previously attributed to the ...
Gertisser, Ralf
core   +1 more source

Karakterisasi Mineral Magnetik Batuan Peridotit Daerah Awang Bangkal Kabupaten Banjar Kalimantan Selatan Menggunakan Metode XRD dan King

open access: yesJurnal Fisika Flux, 2012
Study the nature of magnetism in rocks that has been carried out at the research of peridotite rocks in Awang Bangkal Banjar Regency has not finished, still need to do further research.
Shinta Khalidah   +2 more
doaj   +1 more source

MANTLE TERRANES OF THE SIBERIAN CRATON: THEIR INTERACTION WITH PLUME MELTS BASED ON THERMOBAROMETRY AND GEOCHEMISTRY OF MANTLE XENOCRYSTS

open access: yesГеодинамика и тектонофизика, 2019
We have studied variations in the structure and composition of minerals from the pipes of the Yakutian kimberlite province (YKP) in different mantle terranes of the Siberian craton.
I. V. Ashchepkov   +7 more
doaj   +1 more source

Arc-like magmas generated by mélange-peridotite interaction in the mantle wedge

open access: yesNature Communications, 2018
The mechanisms of transfer of crustal material from the subducting slab to the overlying mantle wedge are still debated. Mélange rocks, formed by mixing of sediments, oceanic crust, and ultramafics along the slab-mantle interface, are predicted to ascend
E. Codillo, V. Le Roux, H. Marschall
semanticscholar   +1 more source

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