Results 1 to 10 of about 21,265 (256)

Deep lithospheric dynamics beneath the Sierra Nevada during the Mesozoic and Cenozoic as inferred from xenolith petrology [PDF]

open access: hybrid, 2001
Peridotite xenoliths erupted in late Miocene basalts (~8 Ma) in the central Sierra Nevada sample a lithosphere that is vertically stratified in terms of age and thermal history.
Brimhall, George H., Jr.   +2 more
core   +3 more sources

Oxidation States of Fe in Constituent Minerals of a Spinel Lherzolite Xenolith from the Tariat Depression, Mongolia: The Significance of Fe3+ in Olivine

open access: yesMinerals (Basel, Switzerland), 2018
The oxidation states of Fe within olivine, orthopyroxene, clinopyroxene, and spinel in a spinel lherzolite xenolith from the Tariat Depression, Mongolia were investigated using 57Fe Mossbauer spectroscopy to evaluate the redox condition of the upper ...
Yasuhito Osanai, Yoshiaki Kon
exaly   +2 more sources

Xenoliths and skialiths [PDF]

open access: bronzeAmerican Journal of Science, 1948
G. E. Goodspeed
openalex   +3 more sources

Geodynamic implications of xenolith geotherms

open access: yesGeochemistry, 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.
N. Sleep
openaire   +3 more sources

A U-Pb Study of Zircons from a Lower Crustal Granulite Xenolith of the Spanish Central System: A Record of Iberian Lithospheric Evolution from the Neoproterozoic to the Triassic [PDF]

open access: yesThe Journal of geology, 2006
A U-Pb laser ablation inductively coupled plasma mass spectrometry and secondary ion mass spectrometry geochronological study has been performed on zircons from a felsic granulite xenolith from the lower crust under the Variscan belt of Iberia. The ages
Arenas Martín, Ricardo   +4 more
core   +2 more sources

Sheared lherzolite xenoliths revisited [PDF]

open access: yesJournal of Geophysical Research: Solid Earth, 2008
The microstructures of sheared lherzolite xenoliths from South African kimberlites are investigated using new microstructural analysis techniques and new rheological data. By applying electron backscatter diffraction (EBSD) methods and the M‐index technique for quantifying the strength of lattice preferred orientation (LPO), it is demonstrated that ...
Shun-ichiro Karato   +2 more
openaire   +2 more sources

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