Results 51 to 60 of about 202 (128)

Ultrahigh thermal gradient granulites in the Narryer Terrane, Yilgarn Craton, Western Australia, provide a window into the composition and formation of Archean lower crust

Journal of Metamorphic Geology, Volume 42, Issue 4, Page 425-470, May 2024.
Abstract Granulites from the Narryer Terrane in the northern Yilgarn Craton, Australia, record evidence for high to ultrahigh thermal gradients during the Meso–Neoarchean. U–Pb zircon ages reflect a complex history of high‐grade, prolonged and poly‐phase metamorphism, with evidence for several thermal pulses at ca. 2745–2725, ca.
Naomi M. Tucker, Johannes Hammerli, Anthony I. S. Kemp, Matthew L. Rowe, Chris M. Gray, Heejin Jeon, Martin J. Whitehouse, Malcolm P. Roberts   +7 more
wiley   +1 more source

An Iapetus origin for a layered eclogite complex in the northern Western Gneiss Region, Scandinavian Caledonides

Journal of Metamorphic Geology, Volume 42, Issue 3, Page 319-354, April 2024.
Abstract The Western Gneiss Region (WGR) is a Precambrian basement domain in the Scandinavian Caledonides and one of the world's largest high‐ and ultrahigh‐pressure terranes. The south–central WGR underwent regional eclogite facies metamorphism 415–400 Ma ago when Baltica subducted beneath Laurentia, during the Scandian orogeny.
Charlotte Möller, Yue Cai, Hannes K. Brueckner, Kristoffer Szilas, Martin J. Whitehouse   +4 more
wiley   +1 more source

Paleoarchean metamorphism in the Acasta Gneiss Complex: Constraints from phase equilibrium modelling and in situ garnet Lu–Hf geochronology

Journal of Metamorphic Geology, Volume 42, Issue 3, Page 373-394, April 2024.
Abstract The oldest known evolved (felsic) rocks on Earth (c. 4.03 Ga) are found in the Acasta Gneiss Complex (AGC) in north‐western Canada and represent a fundamental keystone in unravelling the geological processes governing crustal growth and differentiation during the Hadean and early Archean.
Jonas Kaempf, Tim E. Johnson, Chris Clark, Julian Alfing, Michael Brown, Pierre Lanari, Kai Rankenburg   +6 more
wiley   +1 more source

Disruption of a high‐pressure unit during exhumation: Example of the Cycladic Blueschist unit (Thera, Ios and Naxos islands, Greece)

Journal of Metamorphic Geology, Volume 42, Issue 2, Page 225-255, February 2024.
Abstract Reconstructing the original geometry of a high‐pressure tectonic unit is challenging but important to understand the mechanisms of mountain building. While a single nappe is subducted and exhumed, nappe‐internal thrusts may disrupt it into several subunits.
Alexandre Peillod, Clifford G. C. Patten, Kirsten Drüppel, Aratz Beranoaguirre, Armin Zeh, Dominik Gudelius, Simon Hector, Jarosław Majka, Barbara I. Kleine-Marshall, Andreas Karlson, Axel Gerdes, Jochen Kolb   +11 more
wiley   +1 more source

Effect of mineralogical variations on physico-mechanical and thermal properties of granitic rocks. [PDF]

Sci Rep, 2023
Lasheen ESR, Rashwan MA, Azer MK.
europepmc   +1 more source

Investigating the geochemical behavior and exploration potential of lithium in brines; a case study of Bam salt plug, Zagros Zone, southern Iran. [PDF]

Sci Rep, 2023
Bazamad M, Tangestani MH, Asadi S, Staubwasser M.   +3 more
europepmc   +1 more source

Hydrothermal enrichment of lithium in intracaldera illite-bearing claystones. [PDF]

Sci Adv, 2023
Benson TR, Coble MA, Dilles JH.
europepmc   +1 more source

Transition from carbonatitic magmas to hydrothermal brines: Continuous dilution or fluid exsolution? [PDF]

Sci Adv, 2023
Yuan X, Zhong R, Xiong X, Gao J, Ma Y.
europepmc   +1 more source

Mineralogy and geochemistry of pegmatites rich in REE, F and alkali metals associated with albite granite facies in the deposit of Sn-Nb-Ta- (F, REE, U, Th) Madeira (Pitinga mine, AM, Brazil)

Pesquisas em Geociências, 2018
According to the literature, the pegmatites of Madeira granite, located in the mining district of Pitinga (Amazonas, Brazil), belong to the albite granite facies. Previous studies have proposed that these pegmatitic bodies are associated with N320/60SW oriented faults and are rich in rare earth elements (REE). Due to this, the characterization of these
PALUDO, Carina M., BASTOS NETO, Artur C., PEREIRA, Vitor P., BOTELHO, Nilson F.   +3 more
openaire   +1 more source

Characteristics of Thermal Parameters and Some Physical Properties of Mineral Eutectic Type: Petalite-Alkali Feldspars. [PDF]

Materials (Basel), 2021
Stempkowska A.
europepmc   +1 more source