Results 81 to 90 of about 2,520 (206)

Perovskite-bearing crystal-controlled oxide-silicate mantle xenoliths: Resolution to controversial origins? [PDF]

Sci Adv, 2023
Haggerty SE.
europepmc   +1 more source

Association of quartz, Cr-pyrope and Cr-diopside in mantle xenolith in V.Grib kimberlite pipe (northern East European Platform): genetic models

Записки Горного института
The first results of mineralogical and geochemical studies of a unique xenolith of lithospheric mantle are presented illustrating the earlier non-described mineral association of quartz, Cr-pyrope and Cr-diopside.
Elena V. Agasheva, Denis S. Mikhailenko, Andrei V. Korsakov   +2 more
doaj  

Peridotite pyroxenite and granulite xenoliths from Cenozoic Shavaryn Tsaram volcanic center (Mongolia): New data

Geosystems and Geoenvironment
Mantle lherzolites (spinel- and garnet-bearing), megacrysts and pyroxenites from Moho and lower crust xenoliths of the Cenozoic basalts of Shavaryn-Tsaram volcanic center were newly studied by the EPMA, SEM and LA-ICP methods to define more precisely ...
I.V. Ashchepkov, A.A. Tsygankov, G.N. Burmakina   +2 more
doaj   +1 more source

Quartz-bearing rhyolitic melts in the Earth's mantle. [PDF]

Nat Commun, 2022
Dallai L, Bianchini G, Avanzinelli R, Deloule E, Natali C, Gaeta M, Cavallo A, Conticelli S.   +7 more
europepmc   +1 more source

PHOSPHORUS ZONING FROM SECONDARY OLIVINE IN MANTLE XENOLITH FROM MIDDLE ATLAS MOUNTAINS (MOROCCO, AFRICA): IMPLICATIONS FOR CRYSTAL GROWTH KINETICS

, 2017
Mantle xenolith samples in contact with basalt flows were collected from the Tafraoute maar in Morocco. Discrete melt veins are present in one xenolith sample, crosscutting primary layering and foliation.
P.D. Asimow, J. Berndt, A. Pantazidis, I. Baziotis, G. Economou, K. Mavrogonatos, S. Klemme, A. Papoutsa, S. Flemetakis   +8 more
core   +1 more source

Xenolith Constraints on the Mantle Potential Temperature and Thickness of Cratonic Roots Through Time

Geophysical Research Letters
The temperature of the convecting mantle and thickness of the lithosphere control many of Earth's processes. However, there is disagreement regarding the evolution of these quantities through time.
Z. J. Sudholz, A. Copley
doaj   +1 more source

Geodynamic implications of xenolith geotherms

Geochemistry, Geophysics, Geosystems, 2003
Studies of xenolith suites yield depth‐temperature arrays for the lithosphere at the time of eruption. These studies constrain the conductive heat flow through the lithosphere and limit the temperature range across the rheological boundary layer to <300 K. Numerical models of convection illustrate features that may be found within suites of samples.
openaire   +1 more source

Rock and sediment dataset of petit-spots in the northwestern Pacific. [PDF]

Data Brief, 2022
Akizawa N, Hirano N, Machida S, Ishikawa A, Niwa Y, Shimoda G, Yasukawa K, Matsuzaki KM, Tamura C, Kaneko J.   +9 more
europepmc   +1 more source

A study of ex-situ carbon mineralization under low intensity aqueous reaction

Carbon Capture Science & Technology
Safe, scalable and permanent options for carbon dioxide storage is essential to achieve net negative greenhouse gas emissions and limit catastrophic global warming. A benign and thermodynamically stable form of CO2 storage is a carbonate mineral.
Adam Sjolund, Olivia Andrea Wrenn, Amy Tattershall, Thomas Sasser, Lisa A. Thompson, Jennifer Wade   +5 more
doaj   +1 more source

Mantle xenolith in the mafic dyke at Beremend, Villány Mts., SW Hungary [PDF]

, 1999
Spinel lherzolite nodules of an U, Cretaceous mafic dyke in the Villány Mts. were studied. The xenolith consists of olivine, enstatite, Cr-diopside and Cr-Fe spinel as primary phases. No garnet or plagioclase is present.
Nédli Zsuzsanna, M. Tóth Tivadar
core