A re-evaluation of the peak P–T conditions of eclogite-facies metamorphism of the Paleozoic Acatlán Complex (Mexico) reveals deeper subduction [PDF]
Scientific Reports, 2022 Eclogites in the Acatlán Complex, southern Mexico, record the subduction history of the complex. Previous studies indicate that the proto-Acatlán Complex reached
D. Hernández-Uribe
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High P-T Calcite-Aragonite Phase Transitions Under Hydrous and Anhydrous Conditions
Frontiers in Earth Science, 2022 The subduction of calcite into deep Earth and subsequent phase change are important for global carbon cycle. However, the study of the phase boundary between calcite and aragonite under high P-T conditions is insufficient due to sparse existing phase ...
Xia Zhao +10 more
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Regularity and existence of solutions to parabolic equations with nonstandard p(x,t),q(x,t)-growth conditions [PDF]
Opuscula Mathematica, 2023 We study the Cauchy-Dirichlet problem for a class of nonlinear parabolic equations driven by nonstandard \(p(x,t),q(x,t)\)-growth condition. We prove theorems of existence and uniqueness of weak solutions in suitable Orlicz-Sobolev spaces, derive global ...
Hamid El Bahja
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Geologica Acta, 2020 Quartz veins hosted in the infra and overlying series to the (Sardic) Upper Ordovician Unconformity provide new insights into the structural and thermal evolution of the pre-Variscan rocks of the Eastern Pyrenees.
E. González-Esvertit +3 more
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Phase transition of zircon at high P-T conditions [PDF]
Contributions to Mineralogy and Petrology, 2004 In situ observations of the zircon-reidite transition in ZrSiO4 were carried out using a multianvil high-pressure apparatus and synchrotron radiation. The phase boundary between zircon and reidite was determined to be P (GPa) = 8.5 + 0.0017×(T-1200) (K) for temperatures between 1100-1900 K.
Ono, Shigeaki +4 more
openaire +2 more sources
Геодинамика и тектонофизика, 2021 The study is focused on metapelitic granulites of Cape Kaltygei (Western Baikal region) that contain a diagnostic mineral assemblage of ultrahigh temperature (UHT) metamorphic rocks (orthopyroxene+sillimanite+quartz).
N. I. Volkova +5 more
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Microstructure and properties degradation of P/T 91, 92 steels weldments in creep conditions [PDF]
Journal of Mining and Metallurgy. Section B: Metallurgy, 2012 The studies were performed on dissimilar ferritic/austenitic weldments between 9Cr tempered martensitic steels of the grades either P/T 91 or 92 and unstabilised AISI316H austenitic steel.
Falat L. +4 more
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PT-conditions of deformation within the Palaeoproterozoic South Finland shear zone: Some geothermobarometric results [PDF]
Bulletin of the Geological Society of Finland, 2005 Four rock samples were collected from the crustal-scale South Finland shear zone in order to compare PT-conditions of deformation between gneissose and mylonitic rock types.
T. Torvela, H. Annersten
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Genetic aspects of Sn, Li, Be, Nb-Ta pegmatites and Sn-W vein deposits of the Damaran orogeny, Namibia [PDF]
Bulletin of the Geological Society of Finland, 1987 The pegmatites of the Northern, Central and Southern tin belts of the Damaran orogeny, which contain tin, lithium, beryllium and niobium-tantalum mineralizations, belong to the Abukuma low pressure metamorphic facies series, or to the intermediate-level ...
J.T. Ollila
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Oscillation criteria for nonlinear differential equations with $p(t)$-Laplacian [PDF]
Mathematica Bohemica, 2016 Recently there has been an increasing interest in studying $p(t)$-Laplacian equations, an example of which is given in the following form (|u'(t)|^{p(t)-2}u'(t))'+c(t)|u(t)|^{q(t)-2}u(t)= 0, \quad t>0.
Yutaka Shoukaku
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