Results 71 to 80 of about 4,888 (235)
Journal of Metamorphic Geology, Volume 43, Issue 9, Page 891-908, December 2025.ABSTRACT Dehydration of rocks and minerals during high‐pressure metamorphism is controlled by the thermal structure of the subduction zone and can be traced by the stability fields of hydrous phases. Consistent with the results of experimental works, the content of silicate components in fluids is assumed to increase from the fields of subcritical to ...
Shah Wali Faryad
wiley +1 more source
57Fe Mössbauer Spectroscopy οf Radiation Damaged Allanites
Acta Physica Polonica A, 2008 Metamict minerals contain radioactive elements that degrade the crystal structure of the minerals. The degradation occurs primarily through progressive overlapping recoil nuclei collision cascades from ®-decays of 238U, 232Th, 235U and their daughter products.
Malczewski, Dariusz, Grabias, A.
openaire +3 more sources
Geochemistry, Geophysics, Geosystems, Volume 26, Issue 11, November 2025.Abstract The Lepontine dome (European Central Alps) is constituted by basement nappes under Alpine regional Barrovian metamorphism, yet the duration and pattern of its post‐peak amphibolite‐facies cooling remain uncertain. We examine garnet‐rim compositional re‐adjustment and employ inverse multicomponent diffusion modeling to estimate apparent cooling
A. Tagliaferri +3 more
wiley +1 more source
REE-bearing minerals in the Rapakavi Grante, Southern Finland
Open Geosciences, 2015 The studied rock samples belong to the classic1615–1645 Ma Wiborg Rapakivi granite terrane of southeasternFinland. Geochemical studies show that the rapakivigranites and associated rocks form metaluminousto peraluminous A-type granites and plot in the ...
Al-Ani Thair
doaj +1 more source
Radiogenic Heating as the Thermal Driver of Himalayan Crustal Heating During Prolonged Thickening
Geochemistry, Geophysics, Geosystems, Volume 26, Issue 11, November 2025.Abstract The thermal evolution of the crust during continental collision evolves from cold to hot with time, which impacts crustal reworking and differentiation. However, it remains elusive as to the mechanism driving the crust to be hot during the protracted collision.
Shuaiqi Liu +4 more
wiley +1 more source
Allanite U–Pb step-leaching ages of metapelites in the Imjingang belt, central Korea
Journal of Analytical Science and TechnologyBackground Allanite is a LREE-rich epidote-group mineral, and a potential chronometer for the greenschist-facies metamorphism. However, owing to the metamict nature of allanite, it is extremely difficult to secure sufficient amounts of mineral separates ...
Seunghee Han +3 more
doaj +1 more source
Brazilian Journal of Geology, 2020 Mineral chemistry and intensive parameter estimates for the Major Isidoro (626 Ma) and Monteirópolis (627 Ma) magmatic epidote-bearing granitic plutons, emplaced along the Jacaré dos Homens transpressional shear zone (JHSZ), Borborema Province, are ...
Thyego Roberto da Silva +3 more
doaj +1 more source
Geochemistry of the Rio Espinharas hybrid complex, northeastern Brazil [PDF]
, 1962 The Rio Espinharas pluton, northeastern Brazil, belongs to the shoshonitic series and consists mainly of syenogranite, quartz-monzonite and porphyritic quartz-monzonite, but diorite, quartz-monzodiorite, quartz-syenite and microsyenogranite also occur ...
Campos, T. F. C. +2 more
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Geoscience Data Journal, Volume 12, Issue 4, October 2025.We present MRMinerals and MineralTD, two open‐access, ML‐ready mineral data sets. Together, they provide machine‐readable formulas and 10,000+ compositions per mineral, enabling scalable, data‐driven approaches for applying ML to mineral data analysis. ABSTRACT Artificial intelligence (AI) is being increasingly applied in the geosciences, particularly ...
Tamanna +2 more
wiley +1 more source
Research and development for the Rare Earth Element supply chain in Europe. [PDF]
, 2017 This brochure is a product of the EURARE project, which was funded by the European Commission’s Seventh framework Programme to provide the basis upon which Europe could develop a secure supply of the rare earth elements (REE).
Deady, Eimear +2 more
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