Results 41 to 50 of about 461 (132)

Rift‐Related Low‐Pressure–High‐Temperature Granulite Facies Metamorphism Generates Widespread Peraluminous Crustal Melts: Evidence From the Early Jurassic Mexican Crust

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 5, May 2025.
Abstract High heat fluxes occurring in rift settings are expected to generate partially melted low‐pressure–high‐temperature granulites (LP–HTG). Therefore, studying these rocks can offer valuable insights into crustal reworking during extension. However, our interpretations are limited by the rarity of LP–HTG in the metamorphic record.
Anthony Ramírez‐Salazar, Mattia Parolari, Arturo Gómez‐Tuena, Fernando Ortega‐Gutiérrez, Mariano Elías‐Herrera   +4 more
wiley   +1 more source

Apatites for Destruction: Reference Apatites from Morocco and Brazil for U-Pb Petrochronology and Nd and Sr Isotope Geochemistry

, 2022
In situ apatite U-Pb petrochronology and Sr-Nd isotope geochemistry requires well-characterized and matrix-matched references materials (RMs), yet only a few suitable apatite RMs are currently available.
Kylander-Clark, Andrew R. C., Schmitz, Mark D., Seward, Gareth G. E., Cottle, John M., Wall, Corey J., Apen, Francisco E.   +5 more
core   +1 more source

Multi‐Stage Growth of Kyanite in Migmatites Interpreted by Integrating Forward Thermodynamic Modelling and Trace Element Signature

Journal of Metamorphic Geology, Volume 43, Issue 4, Page 315-339, May 2025.
ABSTRACT Trace element zoning in kyanite can retain information about its growth history, particularly in anatectic metapelites. There, kyanite can grow (i) at sub‐solidus conditions through metamorphic reactions involving other aluminous phases as reactants, (ii) through muscovite dehydration melting reactions, and (iii) during cooling and melt ...
Sara Nerone, Chiara Groppo, Mónica Ágreda‐López, Maurizio Petrelli, Franco Rolfo   +4 more
wiley   +1 more source

Droubi et al., 2024 Xenolith Petrochronology (San Luis Potosi)

Droubi, O. K., Cipar, J. H., Smye, A. J., & Garber, J. M. (2024). Xenolith petrochronology (San Luis Potosi, Mexico) constrains heat sources for Cenozoic ultrahigh-temperature metamorphism in the lower crust [Dataset and Software].
Omar Khalil Droubi
core   +1 more source

A petrochronology window into near-surface fluid/rock interaction within Archaean ultramafic-mafic crust: Insights from the 3.25 Ga Stolzburg Complex, Barberton Greenstone Belt

, 2021
The Stolzburg Complex is one of several early Archaean ultramafic-mafic layered complexes situated along the northern edge of the Barberton Greenstone Belt on the eastern Kaapvaal Craton.
Tappe, Sebastian, Anhaeusser, Carl, Wilson, Allan H, Bolhar, Robert, Avila, Janaina, Ireland, Trevor   +5 more
core   +1 more source

Petrochronology of High‐Pressure Veins Reveals the Evolution of Fluid Sources in Subducted Oceanic Crust (Rocciavrè Eclogites, W. Alps)

Journal of Metamorphic Geology, Volume 43, Issue 3, Page 225-256, April 2025.
ABSTRACT The Rocciavrè massif is a large eclogitized ophiolitic fragment exposed in the Western Alps (Piemonte, Italy) exhibiting an almost complete sequence of the subducted Liguro‐Piemont lithosphere. Raman spectroscopy on carbonaceous material in metasediments from Rocciavrè and the juxtaposed Orsiera massif indicates maximum temperatures in the ...
Clément Herviou, Guillaume Bonnet, Samuel Angiboust, Aitor Cambeses, Tom Raimondo   +4 more
wiley   +1 more source

Polyphase Metamorphism of the Northern Rae Craton (Baffin Island, Arctic Canada) and Trace Element Behaviour in Monazite: Insights From Phase Equilibria Modelling and Geochronology

Journal of Metamorphic Geology, Volume 43, Issue 3, Page 287-314, April 2025.
ABSTRACT Integrated field mapping, phase equilibria modelling and in situ U–Pb monazite geochronology from the northern margin of the Rae craton on Baffin Island document three metamorphic events during the Neoarchean to the middle Paleoproterozoic.
Diane Skipton, Natasha Wodicka, Owen Weller, Simon Jackson, Marc St‐Onge, Benoit Saumur, Duane Petts   +6 more
wiley   +1 more source

Petrochronology: methods and applications Reviews in mineralogy and geochemistry ;, v. 83./ editors, Matthew J. Kohn, Martin Engi & Pierre Lanari.

, 2017
Reviews in Mineralogy & Geochemistry (RiMG) volumes contain concise advances in theoretical and/or applied mineralogy, crystallography, petrology, and geochemistry.
Kohn Matthew J.,, Engi Martin, Lanari Pierre   +2 more
core  

Boosting the petrochronology arsenal: REE partitioning between garnet and monazite in Bhutanese pelitic metasediments [PDF]

, 2017
Metamorphic studies are increasingly striving to integrate timing information with petrographic analysis and thermobarometry – the developing field of petrochronology.
Warren, C. J., Greenwood, L. V., Harris, N. B. W., Roberts, N. M. W., Argles, T. W.   +4 more
core  

Zircon Solubility, Metamict ZrSiO4 Replacement, and Hydrothermal Zircon Formation at Upper Crustal Pressures

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 3, March 2025.
Abstract Stable and inert under most conditions, zircon can be dissolved and precipitated by aqueous fluids in the upper crust. Geochemical models using currently available thermodynamic properties for Zr aqueous species at 0.2 GPa predict that zircon solubility increases with temperature from 400 to 900°C in fluids saturated with quartz or baddeleyite.
John C. Ayers, Chen Zhu
wiley   +1 more source