Results 61 to 70 of about 910 (212)

The Contribution of the Petrological Iterative Approach in Reconciling the UHP Natural Data Set With Geodynamic Models in the Continental Western Alps

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 11, November 2025.
Abstract Pressure and temperature estimates of metamorphic terranes are increasingly retrieved from forward thermodynamic modeling coupled with isopleth thermobarometry. Although geodynamic reconstructions are mathematically derived, thermobarometric estimates are limited by a lack of quantitative constraints, especially on their uncertainties.
A. Petroccia, S. Nerone, A. Maffeis, F. Caso, F. Boero, S. Ghignone, C. Groppo   +6 more
wiley   +1 more source

Mineral chemistry of clinopyroxene, guidance on thermobarometry and tectonic setting of Gaz Boland basalts, northwest of Shahr-e-Babak [PDF]

, 2021
ملیحه Golestani, امیر Mahdavi, امیر Mahdavi, دانشگاه بیرجند   +3 more
openalex   +1 more source

Metasomatism and Mélange Development at the Conditions of Modern Deep Slow Slip: P‐T‐t Evolution of Metasomatic Rocks (Pimu'nga/Santa Catalina Island, CA)

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 10, October 2025.
Abstract The subduction interface hosts megathrust earthquakes and ductile creep, is fluid‐rich and chemically dynamic, and produces metasomatic rocks that may host episodic tremor and slow slip (ETS). However, determining the depths at which these metasomatic rocks form and deform remains challenging.
W. Hoover, C. B. Condit, A. Moser, S. Mulcahy, P. C. Lindquist, V. E. Guevara   +5 more
wiley   +1 more source

Plagioclase‐Saturated Melt Hygrothermobarometry and Plagioclase‐Melt Equilibria Using Machine Learning

Geochemistry, Geophysics, Geosystems
Compositions of plagioclase‐melt pairs are commonly used to constrain temperatures (T), dissolved water contents (H2O) and pressures (P) of pre‐eruptive magma storage and transport.
K. S. Cutler, M. Cassidy, J. D. Blundy
doaj   +1 more source

Picroilmenites in Yakutian kimberlites: variations and genetic models [PDF]

Solid Earth, 2014
Major and trace element variations in picroilmenites from Late Devonian kimberlite pipes in Siberia reveal similarities within the region in general, but show individual features for ilmenites from different fields and pipes.
I. V. Ashchepkov, N. V. Alymova, A. M. Logvinova, N. V. Vladykin, S. S. Kuligin, S. I. Mityukhin, H. Downes, Yu. B. Stegnitsky, S. A. Prokopiev, R. F. Salikhov, V. S. Palessky, O. S. Khmel'nikova   +11 more
doaj   +1 more source

Expansion and Contraction of the Patagonian Ice Sheet and Its Influence on Magma Storage Beneath Mocho‐Choshuenco Volcano, Chile

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 10, October 2025.
Abstract Glacial loading and unloading could impact eruptive outputs at mid‐ to high‐latitude arc volcanoes, yet the influence on magma storage conditions remains poorly understood. Mocho‐Choshuenco volcano in the Andean Southern Volcanic Zone has been impacted by the advance and retreat of the Patagonian ice sheet (PIS).
Pablo Moreno‐Yaeger, Brad S. Singer, Brent V. Alloway, Meredith Townsend, Joshua Cuzzone, William O. Nachlas, Benjamin R. Edwards, Brian R. Jicha, Shaun A. Marcott, Felix O. Boschetty   +9 more
wiley   +1 more source

Magmatic evolution and architecture of an oceanic intraplate volcano: Vesteris Seamount, Atlantic Ocean

Frontiers in Earth Science
Vesteris is a large (33 × 27 km) and young (summit age: 0.65–0.010 Ma) intraplate seamount in the Greenland Sea, formed from ocean island basalt (OIB) magmatism.
L. Beloša, D. T. Murphy, T. Ubide, S. Callegaro, C. M. Meyzen, M. Bizimis, A. Mazzini, A. Mazzini   +7 more
doaj   +1 more source

Calibration, Validation and Evaluation of Machine Learning Thermobarometers in Metamorphic Petrology: An Application to Biotite and Outlook for Future Strategy

Journal of Metamorphic Geology, Volume 43, Issue 8, Page 755-780, October 2025.
ABSTRACT Geothermobarometry provides crucial constraints on the physical conditions of metamorphism, offering insights into petrogenetic processes and providing key information on thermal regimes and metamorphic depths to other geological disciplines.
Philip Hartmeier, Jacob B. Forshaw, Pierre Lanari   +2 more
wiley   +1 more source

Lithospheric origin of a diamond from the Rio Sorriso area, Mato Grosso State, Brazil

Frontiers in Geochemistry
Diamonds are unique samples that enlarge our vision of the physical and chemical reactions occurring in Earth’s deep, inaccessible mantle. By investigating the minerals and fluids trapped within them, it is possible to ascertain the key conditions ...
A. Angellotti, G. Marras, M. Morana, S. Chariton, V. Stopponi, L. Medeghini, C. Romano, A. Correale, L. Bindi, F. V. Kaminsky, V. Stagno, V. Stagno   +11 more
doaj   +1 more source

Structural Data and Thermometry Indicate That the Tso Morari UHP Nappe (Indian Himalaya) Was Emplaced as a Large‐Scale, Structurally Coherent Sheet

Tectonics, Volume 44, Issue 9, September 2025.
Abstract Ultrahigh‐pressure (UHP) nappes provide important opportunities to investigate the processes that exhume rocks from upper mantle depths. Here, we investigate the UHP Tso Morari nappe (TMN) in the Indian Himalaya to test competing models for the construction of UHP nappes via detachment of single, structurally coherent sheets, accretion of ...
Adelie Ionescu, Sean P. Long, Matthew J. Kohn, Kyle P. Larson, Emmanuel Soignard, Jayna Thompson   +5 more
wiley   +1 more source