Results 31 to 40 of about 7,121 (239)
Геодинамика 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
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Progress in Earth and Planetary Science, 2022 The lithospheric mantle, formed at the mid-ocean ridge as a residue of crustal production, comprises theoretically depleted peridotite, but more fertile components (e.g., lherzolite and pyroxenite) have been reported, creating an enigmatic picture of the
Kazuto Mikuni +7 more
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Reactive transport experiments of coupled carbonation and serpentinization in a natural serpentinite. Implication for hydrogen production and carbon geological storage [PDF]
, 2021 Serpentinization and carbonation of ultramafic formations is a ubiquitous phenomenon, which deeply influences the biogeochemical cycles of water, hydrogen, carbon... while supporting the particular biosphere around the oceanic hydrothermal vents. Carbonation of peridotites and other mafic and ultramafic rocks is also a hot topic in the current energy ...
arxiv +1 more source
Jurnal 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
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On the role of solute drag in reconciling laboratory and natural constraints on olivine grain growth kinetics [PDF]
, 2020 We investigate the effect of solute drag on grain growth (GG) kinetics in olivine-rich rocks through full field and mean field modelling. Considering a drag force exerted by impurities on grain boundary migration allows reconciling laboratory and natural constraints on olivine GG kinetics.
arxiv +1 more source
Anais da Academia Brasileira de Ciências, 2014 This paper presents gravimetric and morphologic analyses based on the satellite-derived data set of EGM2008 and TOPEX for the area of the oceanic mantle massif of the Saint Peter and Saint Paul peridotite ridge, Equatorial Atlantic Ocean.
KENJI F. MOTOKI +2 more
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Machine Learning Reveals Source Compositions of Intraplate Basaltic Rocks
Geochemistry, Geophysics, Geosystems, 2021 Recycling of crustal material is thought to introduce pyroxenite to the peridotite mantle. Mapping such lithological heterogeneity within the mantle is crucial to understanding the mantle's chemical evolution but remains challenging.
Peng Guo +3 more
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Deformation of upper mantle rocks with contrasting initial fabrics in axial extension [PDF]
arXiv, 2021 To explore the role of the olivine grain size and crystal preferred orientation (CPO) on the evolution of the microstructure and the mechanical behaviour of upper mantle rocks up to large strains, we performed axial extension experiments at 1200C, 300MPa confining pressure, and constant displacement rate on three natural peridotites: a fine-grained ...
arxiv
Zircon survival in shallow asthenosphere and deep lithosphere [PDF]
American Mineralogist 2020 volume 105 pages 1662 to 1671, 2020 Zircon is the most frequently used mineral for dating terrestrial and extraterrestrial rocks. However, the system of zircon in mafic/ultramafic melts has been rarely explored experimentally and most existing models based on the felsic, intermediate and/or synthetic systems are probably not applicable for prediction of zircon survival in terrestrial ...
arxiv +1 more source
Activation experiment for concrete blocks using thermal neutrons
EPJ Web of Conferences, 2017 Activation experiments for ordinary concrete, colemanite-peridotite concrete, B4C-loaded concrete, and limestone concrete are carried out using thermal neutrons.
Okuno Koichi, Tanaka Seiichiro
doaj +1 more source