Results 41 to 50 of about 3,780 (205)

The South Millevaches Middle Carboniferous crustal melting and its place in the French Variscan Belt [PDF]

, 2009
International audienceSeveral episodes of crustal melting are now well identified in the Variscan French Massif Central. Middle Devonian (ca 385-375 Ma) migmatites are recognized in the Upper and Lower Gneiss Units involved in the stack of nappes.
Be Mezeme, Eugène, Cocherie, Alain, Faure, Michel, Melleton, Jérémie, Rossi, Philippe   +4 more
core   +3 more sources

Potential of Soils Natural Sorbents for Environmental Decontamination From 137Cs

Land Degradation &Development, Volume 37, Issue 2, Page 779-789, 30 January 2026.
ABSTRACT This study addresses the existing research gap concerning the lack of integrated data on the role of in situ soil components in the long‐term fixation of 137Cs under natural, protected, and non‐agricultural conditions. The contamination of ecosystems by radioactive isotopes, particularly 137Cs, represents a considerable environmental hazard ...
Katarzyna Szarłowicz, Filip Jędrzejek, Marcin Stobiński, Michał Skiba   +3 more
wiley   +1 more source

An investigation into the controls of granite plutonism in the Sierra da Freita region, Northern Portugal [PDF]

, 2012
The Serra da Freita region of north central Portugal was chosen for study as it displays the complex relationships between regional structure, plutonism, regional and contact metamorphism typical of this part of Iberia.
Reavy, Reginald John
core  

Two Cycles of Devonian–Triassic Extension and Compression in the Altai Accretionary Wedge: Insights From Tsogt Core Complex

Tectonics, Volume 44, Issue 12, December 2025.
Abstract The Altai Accretionary Wedge in the Mongolian Altai records a polyphase geodynamic evolution involving two extensional–compressional tectonic cycles, constrained by petrostructural analysis and zircon, monazite U–Pb, and Ar–Ar geochronology. The studied section includes a southwestern high‐grade and a northeastern low‐grade domain, previously ...
O. Lexa, P. Jeřábek, K. Schulmann, M. Racek, Y. Jiang, A. R. C. Kylander‐Clark, J. Míková, R. Spikings   +7 more
wiley   +1 more source

Mapping of Himalaya Leucogranites Based on ASTER and Sentinel-2A Datasets Using a Hybrid Method of Metric Learning and Random Forest

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020
The widely distributed leucogranite belt in the Himalayan orogeny is expected to have excellent potential for developing rare metal mineralization.
Ziye Wang, Renguang Zuo, Yanni Dong
doaj   +1 more source

Textural and mineral-chemistry constraints on columbite-group minerals in the Penouta deposit: evidence from magmatic and fluid-related processes [PDF]

, 2018
The Penouta Sn-Ta deposit, in the northwest of Spain, is a greisenized granitic cupola where Ta minerals occur mainly as disseminations in a leucogranite body intruded in Precambrian–Lower Cambrian gneisses and mica-schists. This leucogranite is a medium-
Alfonso Abella, María Pura, Anticoi Sudzuki, Hernán Francisco, Calvo Torralba, Daniel, García Polonio, Francisco, García-Vallès, Maite, Guasch Cascallo, Eduard, Hamid, Sarbast, Llorens González, Teresa, López Moro, Francisco Javier, Oliva Moncunill, Josep, Parcerisa Duocastella, David, Tomasa Guix, Oriol   +11 more
core   +2 more sources

A Dual‐Geochronologic and Thermochronologic Detrital Approach to Identify the Focus of Erosion in the Kosi Basin, Nepal

Tectonics, Volume 44, Issue 12, December 2025.
Abstract The Kosi River watershed captures the major lithotectonic units, structures, and characteristic climatic conditions found along the Himalaya. Therefore, this setting provides a useful location to investigate the respective influences of tectonics and climate in eroding bedrock and driving landscape evolution.
J. N. Zehner, D. A. Orme, K. Sundell, Y. Najman, M. Blum, J. Gleason, A. K. Laskowski, S. Poudel   +7 more
wiley   +1 more source

Petrography and geochemistry of pegmatite and leucogranite of Ntega-Marangara area, Burundi, in relation to rare metal mineralisation

Open Geosciences
The Ntega-Marangara area, part of the Kanyaru supergroup, Western Domain of Karagwe Ankole Belt, hosts numerous pegmatite veins related to the leucogranite. This investigation aims to characterise the granitoids, their alteration products, and rare metal
Akabahinga Quesnay de Jésus, Bolarinwa Anthony Temidayo, Ntiharirizwa Seconde   +2 more
doaj   +1 more source

Type intrusive series of the Far East belt of lithium-fluoric granites and its ore content

Записки Горного института, 2022
The evolution and ore content of granitoid magmatism in the Far East belt of lithium-fluoric granites lying in the Russian sector of the Pacific ore belt have been studied.
Viktor I. Alekseev
doaj   +1 more source

Thermal constraints on the emplacement rate of e large intrusive complex : the Manaslu Leucogranite, Nepal Himalaya.

, 2006
International audienceThe emplacement of the Manaslu leucogranite body (Nepal, Himalaya) has been modelled as the accretion of successive sills. The leucogranite is characterized by isotopic heterogeneities suggesting limited magma convection, and by a ...
Annen, Catherine, Scaillet, Bruno, Sparks, R.S.J.   +2 more
core   +4 more sources