Results 51 to 60 of about 461 (132)

The Addition of Felsic Sediments to the Lower Continental Crust During the Variscan Orogeny

open access: yesGeochemistry, Geophysics, Geosystems, Volume 26, Issue 1, January 2025.
Abstract Lower crustal metasedimentary xenoliths (garnet‐sillimanite granulites) from the Bournac breccia pipe in the Massif Central, France, provide a robust example of sediments transported to depth and incorporated into stable lower continental crust during a collisional orogeny.
M. F. Ringwood   +2 more
wiley   +1 more source

Timescales of ultra-high temperature metamorphism and crustal differentiation: Zircon petrochronology from granulite xenoliths of the Variscan French Massif Central

open access: yes, 2023
International audienceLower crustal ultra-high temperature (UHT) metamorphism and the resulting production and transfer of granitic magmas represent key processes of intracrustal differentiation.
Laurent, Oscar   +2 more
core   +1 more source

The Application of Laser-Ablation Split-Stream ICP Petrochronology to Metamorphic Studies

open access: yes, 2013
Discussion of a new, innovative method for dating rocks, called laser ablation split stream (LASS) petrochronology, which is an in situ method that couples geochronological and geochemical data of minerals that remain in the rock matrix. The talk focuses
Baldwin, Ph.D., Julia
core  

Origin and evolution of the Variscan Léon eclogites: insights from zircon and garnet petrochronology

open access: yes
Eclogites record the deep burial and exhumation of crustal terranes, which are key tectonic markers in the evolution of orogenic belts. Unraveling the evolution of eclogites and eclogite-bearing terranes may nevertheless be challenging, especially in old
Lotout, Caroline   +8 more
core   +1 more source

A modern pulse of ultrafast exhumation and diachronous crustal melting in the Nanga Parbat Massif. [PDF]

open access: yesSci Adv, 2022
Guevara VE   +8 more
europepmc   +1 more source

Plate motion and a dipolar geomagnetic field at 3.25 Ga. [PDF]

open access: yesProc Natl Acad Sci U S A, 2022
Brenner AR   +4 more
europepmc   +1 more source

Seeing through the Ottawan Overprint, Adirondack Mtns., NY: Integrating Microstructural Analysis, Geothermobarometry, and in-situ Monazite Petrochronology

open access: yes, 2020
Integrating field observation with petrochronology is critical for understanding the tectonometamorphic evolution of the North American Grenville Province.
Mistikawy, Justin
core   +1 more source

Magmatic surge requires two-stage model for the Laramide orogeny. [PDF]

open access: yesNat Commun, 2023
Schwartz JJ   +6 more
europepmc   +1 more source

Zircon Petrochronology of behemothian porphyry copper systems [PDF]

open access: yesGoldschmidt2021 abstracts, 2021
Adrianna Virmond   +2 more
openaire   +1 more source

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