Results 11 to 20 of about 3,139 (203)

Relationship between radiogenic heat production in granitic rocks and emplacement age

Energy Geoscience, 2023
Granites play a crucial role in the Earth's thermal regime and its evolution. Radiogenic heat production (RHP) by the decay of radioactive elements (U, Th, K) in granites is a significant parameter in estimating the thermal structure of the lithosphere ...
Dawei Liao, Dongjun Feng, Jun Luo, Xiaorui Yun   +3 more
doaj   +1 more source

Tectonic history of the South Tannuol Fault Zone (Tuva region of the northern Central Asian Orogenic Belt, Russia) : constraints from multi-method geochronology [PDF]

, 2020
In this study, we present zircon U/Pb, plagioclase and K-feldspar Ar-40/Ar-39 and apatite fission track (AFT) data along the South Tannuol Fault Zone (STFZ).
De Grave, Johan, Mikhailova, Polina, Nachtergaele, Simon, Van Ranst, Gerben, Vetrov, Evgeny, Vetrova, Natalia, Zhimulev, Fedor   +6 more
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Tectonic and magmatic factors of Li-F granites localization of the East of Russia

Записки Горного института, 2021
We have investigated tectonic and magmatic factors of Li-F granites localization of the East of Russia. The study is based on the ideas of Far Eastern geologists about the deep structures of intraplate activity.
Viktor I. Alekseev
doaj   +1 more source

Remote sensing-based geological mapping and petrogenesis of Wadi Khuda Precambrian rocks, South Eastern Desert of Egypt with emphasis on leucogranite

Egyptian Journal of Remote Sensing and Space Sciences, 2021
The exposed Precambrian rocks along Wadi Khuda area, South Eastern Desert of Egypt, comprise gneisses, amphibolites and migmatites associations (infrastructural rocks) which are intruded by diorite, tonalite, syenogranite and leucogranite (LG).
Asran M. Asran, S.M. Hassan
doaj   +1 more source

The Lomagundi-Jatuli carbon isotopic event recorded in the marble of the Tandilia System basement, Río de la Plata Craton, Argentina [PDF]

, 2019
The “Lomagundi-Jatuli event” corresponds to the most important δ13C positive anomaly (≥5‰) globally reported in Palaeoproterozoic marine carbonates (between ∼2.30 and 2.06 Ga).
Ballivian Justiniano, Carlos Alberto, Cingolani, Carlos Alberto, Etcheverry, Ricardo Oscar, Lajoinie, Maria Florencia, Lanfranchini, Mabel Elena, Recio, C., Sial, A.N.   +6 more
core   +1 more source

Magmatic and hydrothermal behavior of uranium in syntectonic leucogranites: The uranium mineralization associated with the Hercynian Guérande granite (Armorican Massif, France) [PDF]

, 2017
Most of the hydrothermal uranium (U) deposits from the European Hercynian belt (EHB) are spatially associated with Carboniferous peraluminous leucogranites.
Ballouard, C., Boulvais, P., Cathelineau, M., Cuney, M., Deloule, E., Jolivet, M., Kéré, I., Mercadier, J., Poujol, M., Tartèse, R., Venneman, T.   +10 more
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Syn-orogenic high-temperature crustal melting: Geochronological and Nd-Sr-Pb isotope constraints from basement-derived granites (Central Damara Orogen, Namibia) [PDF]

, 2014
Major and trace element and Nd, Sr and Pb isotope data from c. 550 Ma-old gray granites and c. 510 Ma-old red leucogranites of the high-grade central part of the Damara orogen (Namibia) indicate a dominantly deep crustal origin.
Barnes, Boynton, Brandt, Chappell, Chappell, Clemens, Clemens, England, Folkmar Hauff, Govindaraju, Gray, Haack, Haack, Haack, Hanson, Harrison, Hartmann, Hoffman, Jacob, Jacobsen, Janoušek, Jasper Berndt-Gerdes, Johannes, Johnson, Jung, Jung, Jung, Jung, Jung, Jung, Jung, Jung, Jung, Jung, Jung, Jung, Jung, Jung, Jörg Ostendorf, Kasch, Kröner, Kröner, Linnen, Longridge, Martin, McDermott, McDermott, Michard, Milisenda, Miller, Miller, Patiño Douce, Patiño Douce, Patiño Douce, Roberts, Schmidt, Schreiber, Seth, Stacey, Stefan Jung, Watson, Zen   +61 more
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Petrology, geochemistry, and geochronology of the leucogranites in southernmost Finland [PDF]

Bulletin of the Geological Society of Finland
In the southernmost part of the Svecofennian province in Finland, leucogranites and migmatites stemming from both igneous and sedimentary protoliths reflect the complex magmatic history of the Svecofennian orogeny between 1.89 and 1.82 Ga.
Anna Saukko, Kaisa Nikkilä, Olav Eklund, Sören Fröjdö, Markku Väisänen   +4 more
doaj   +1 more source

Neoproterozoic magmatic evolution of the southern Ouaddaï Massif (Chad)

BSGF - Earth Sciences Bulletin, 2020
This paper presents new petrological, geochemical, isotopic (Nd) and geochronological data on magmatic rocks from the poorly known southern Ouaddaï massif, located at the southern edge of the so-called Saharan metacraton. This area is made of greenschist
Djerossem Félix, Berger Julien, Vanderhaeghe Olivier, Isseini Moussa, Ganne Jérôme, Zeh Armin   +5 more
doaj   +1 more source

Procesos anatécticos (LP-HT) y heterogeneidad litológica en el Complejo Migmatítico de Mindelo (NW Portugal) [PDF]

, 2014
The Mindelo Migmatitic Complex crops out in the coastal zone north of Porto (Portugal) and consists of a set of migmatitic and granitic lithologies. Field relationships, petrography, geochemistry and isotopic signature of the various lithologies allow ...
A. Dória, Brown, Capdevila, Catalán, Ferreira, J. F. Santos, M. A. Ribeiro, M. Areias, McLennan, Noronha, Pereira, Pereira, Ribeiro, Sousa, Teixeira, Teixeira, White, Ábalos   +17 more
core   +3 more sources