Results 21 to 30 of about 6,691 (288)
Geosciences, 2021 The garnet chemical zoning method (GZM) is a reliable thermodynamic approach for forward modeling pressure-temperature (P-T) paths using observed garnet and bulk rock compositions.
Thomas M. Etzel, Elizabeth J. Catlos
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The Strontian Intrusive Complex: Petrography, Thermobarometry and the Influence of Titanite on Residual Melt Chemistry [PDF]
Journal of Petrology, 2023 Although the evolution of residual melts in magmatic systems controls their eruptability and ore-forming potential, their compositions are obscured in plutonic rocks by a protracted near-solidus evolution, and the absence of interstitial glass.
Thomas James Matthews +5 more
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A Machine Learning-Based Approach to Clinopyroxene Thermobarometry: Model Optimization and Distribution for Use in Earth Sciences. [PDF]
J Geophys Res Solid Earth, 2022 Thermobarometry is a fundamental tool to quantitatively interrogate magma plumbing systems and broaden our appreciation of volcanic processes. Developments in random forest‐based machine learning lend themselves to a data‐driven approach to clinopyroxene
Jorgenson C +4 more
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Experimental evaluation of anisotropic elastic thermobarometry applied to stiff mineral inclusions in soft hosts: First evaluation of zircon inclusions in quartz [PDF]
Goldschmidt2022 abstracts, 2022 Elastic geothermobarometric models are often applied to mineral host-inclusion systems to estimate P-T when both the host and inclusion have a relatively large difference in thermoelastic properties (i.e. quartz-in-garnet).
Joseph E. Gonzalez +4 more
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Earth-Science Reviews, 2020 Arclogites, or clinopyroxene-, garnet-, amphibole-, and Fe Ti oxide-bearing cumulates and restites (collectively representing residues) to andesitic continental arc magmas, are reviewed here and in a companion paper ( Ducea et al., 2020 ).
Mihai N. Ducea +3 more
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Journal of Petrology, 2023 The chemistry of erupted clinopyroxene crystals (±equilibrium liquids) have been widely used to deduce the pressures and temperatures of magma storage in volcanic arcs.
P. Wieser, A. Kent, C. Till
semanticscholar +1 more source
Journal of Petrology, 2023 The Rauer Group in East Antarctica is a typical high- to ultrahigh-temperature (HT–UHT) granulite-facies terrane. As UHT metamorphism has been recognized only in Mg–Al-rich pelitic granulites from the Mather Paragneiss, the regional extent of UHT ...
Longyao Chen +3 more
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Minerals, 2023 The Late Aptian Rajmahal Traps originated through Kerguelen-Plume-related volcanism at the eastern margin of the Indian Shield. Clinopyroxene and whole-rock thermobarometry reveals that the Rajmahal magmas crystallized at P-T conditions of ≤~5 kbar/~1100–
N. Chatterjee, N. C. Ghose
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Lunar Mg suite: Thermobarometry and petrogenesis of parental magmas [PDF]
Journal of Geophysical Research: Planets, 2001 Using compilations of internally consistent thermodynamic data on minerals and advances in quantifying the energetics of crystalline solid solutions, we have recalculated the pressures and temperatures of equilibration of troctolite sample 76535 and a number of spinel cataclasites. The five phase assemblage (olivine + orthopyroxene + clinopyroxene + Cr‐
I. S. McCallum, Jeffrey M. Schwartz
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American Journal of Science, 2023 Mineral inclusions are trapped in a variety of geological environments and physical conditions. If brought to conditions different than their entrapment, mineral inclusions will generally experience different stress conditions than their hosts due to ...
E. Moulas +4 more
semanticscholar +1 more source