Results 101 to 110 of about 28,848 (258)
Aceh International Journal of Science and TechnologyGunung Badak Complex is located in Ciletuh Palabuhanratu UNESCO Global Geopark, which preserves significant records of tectonic evolution in Southern West Java. This research aims to characterize igneous rocks and interpret tectonic implications.
Millati Amalia Sentosa* +2 more
doaj +1 more source
Geochemistry, Geophysics, GeosystemsMantle peridotites exhibit complex microstructures due to the interaction of various deformation processes in the upper mantle. Thus, analysis of deformation microstructures can provide essential insights into the sequence of deformation events within ...
K. Matsuyama, K. Michibayashi
doaj +1 more source
THERMOBAROMETRY OF DEPLETED PERIDOTITES
Geodynamics & TectonophysicsAn assessment was made of the possibility of using olivine thermobarometry for xenoliths of depleted peridotites from the Udachnaya pipe (Yakutia), represented by 76 megacrystalline dunites and 5 megacrystalline harzburgites. Specially developed and tested method of microprobe analysis was used to determine Al and Ca microimpurities in the olivine ...
L. N. Pokhilenko +2 more
openaire +2 more sources
Frictional melting of peridotite and seismic slip
Journal of Geophysical Research: Solid Earth, 2009 The evolution of the frictional strength along a fault at seismic slip rates (about 1 m/s) is a key factor controlling earthquake mechanics. At mantle depths, friction‐induced melting and melt lubrication may influence earthquake slip and seismological data.
Del Gaudio +13 more
openaire +2 more sources
Datasets for peridotite glassTHIS DATASET IS ARCHIVED AT DANS/EASY, BUT NOT ACCESSIBLE HERE.
Mashino, I (via Mendeley Data)
core +1 more source
Channelized melt flow in downwelling mantle: Implications for 226Ra-210Pb disequilibria in arc magmas [PDF]
, 2008 We present the results of an analytical model of porous flow of viscous melt into a steadily dilating ‘‘channel’’ (defined as a cluster of smaller veins) in downwelling subarc mantle.
Koenders, M. A. +7 more
core +1 more source
A Graphical User Interface Application to Model Open‐System Melting in the Upper Mantle
Geochemistry, Geophysics, GeosystemsThe mantle partial melting process is crucial for the physicochemical evolution of the Earth's upper mantle and the generation of mafic crust. The open‐system melting model incorporates continuous melt segregation, interaction with melts or fluids, and ...
I. Nishio +4 more
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Origin of Ophiolitic Peridotites
Journal of Geography (Chigaku Zasshi), 1989 Origin of spinel peridotites of upper mantle derivation, especially that of ophiolitic peridotites, is discussed mainly on the basis of compositional relationship between olivine (Fo content) and chromian spinel (Cr/(Cr+Al) atomic ratio=Cr* ratio). Spinel peridotites are distributed in a relatively narrow band, the olivine-spinel mantle array, on the ...
openaire +2 more sources
Peridotite-CO_2-H_2O and the low-velocity zone
, 1978 The properties of the seismic low-velocity zone are consistent with incipient melting of mantle peridotite. Vapor-absent melting of amphibole-peridotite has been used to model the low-velocity zone, but evidence that CO_2 exists in the upper mantle ...
Wyllie, P. J.
core
, 2013 J.C.Pura belt is a small komatiite – rich Archaean (~3.35 Ga) greenstone terrain in Western Dharwar Craton (Fig. 1). Extrusive signature of the komatiite is evident in the form of flow top joints, pillow structures, flow top breccias and vesicular ...
Prabhakar, B.C., Namratha, R.
core