Results 71 to 80 of about 2,658 (209)

REE mineralisation within the Ditrău Alkaline Complex, Romania: Interplay of magmatic and hydrothermal processes [PDF]

The Ditrău Igneous Complex (north-east Romania) is a tilted Mesozoic alkaline intrusion (~19 km diameter), with enrichments in rare earth elements (REE), niobium, and molybdenum. It has the potential to contribute to a secure and sustainable European REE
Gabudianu, I., Goodenough, K.M., Hirtopanu, P., Honour, V. C., Shaw, R.A.   +4 more
core   +1 more source

Fast and Spatially Heterogeneous Cooling Rates at Amphibolite‐Facies Conditions in the Lepontine Alps (Switzerland)

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, E. Moulas, S. M. Schmalholz, F. L. Schenker   +3 more
wiley   +1 more source

An Experimental Study of Trace Element Fluxes from Subducted Oceanic Crust [PDF]

, 2017
We have determined experimentally the hydrous phase relations and trace element partitioning behaviour of ocean floor basalt protoliths at pressures and temperatures (3 GPa, 750-1000°C) relevant to melting in subduction zones.
Blundy, J. D., Carter, L. B., De Hoog, J. C. M., Elliott, T., Skora, S.   +4 more
core  

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, Guibin Zhang, Lifei Zhang, Shuzhen Wang, Feng Chang   +4 more
wiley   +1 more source

MRMinerals and MineralTD: Machine‐Readable Mineral Formula and Compositions Data Set for Data‐Driven Research

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, Dominik C. Hezel, Horst R. Marschall   +2 more
wiley   +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., Neiva, A. M. R., Nardi, L. V. S.   +2 more
core   +1 more source

Geochemistry of Rare Earth Elements (REE) in the Weathered Crusts from the Granitic Rocks in Sulawesi Island, Indonesia [PDF]

, 2014
We report for the first time the geochemistry of rare earth elements (REE) in the weathered crusts of I-type and calc-alkaline to high-K (shoshonitic) granitic rocks at Mamasa and Palu region, Sulawesi Island, Indonesia.
Maulana, Adi, Watanabe, Koichiro, Yonezu, Kotaro   +2 more
core   +1 more source

Constraints on the Dehydration Systematics of Subducted Oceanic Crust Across the Blueschist‐to‐Eclogite Facies Transition (Eclogite Zone, Eastern Alps)

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 10, October 2025.
Abstract Mafic eclogites of the Tauern Window in the Eastern Alps preserve vein networks associated with eclogite‐facies mineral assemblages. The structural and mineralogical diversity of these veins is encapsulated by Type I veins, which resemble deformed tension gashes, and Type II quartz segregates with non‐planar morphologies. Within host eclogites,
L. A. Strobl, D. Elsworth, D. Fisher, A. J. Smye   +3 more
wiley   +1 more source

Tectonothermal Evolution of the NW Wyoming Province: Insights From Coupled Garnet Lu‐Hf and Sm‐Nd Geochronology

Journal of Metamorphic Geology, Volume 43, Issue 8, Page 839-862, October 2025.
ABSTRACT Understanding how Paleoproterozoic orogenic processes shaped the assembly of Laurentia remains a critical puzzle in deciphering Earth's ancient tectonic history. To address this challenge, the Montana metasedimentary terrane in the northwest Wyoming Province, which preserves a complex record of multiple metamorphic episodes, provides a unique ...
Tsai‐Wei Chen, Jeff Vervoort, Julia Baldwin, Peter Baker   +3 more
wiley   +1 more source

Epidote populations in contaminated granitic pegmatites from Northern Portugal [PDF]

, 2010
Publicado em "Acta Mineralogica-Petrographica.
Dias, Patrícia Sofia Alves, Gomes, C. Leal   +1 more
core