Results 91 to 100 of about 2,386 (223)

Ascent of migmatites of a high-temperature metamorphic complex due to buoyancy beneath a volcanic arc: a mid-Cretaceous example from the eastern margin of Eurasia

, 2019
Mixtures of melt and residue in a high-T metamorphic complex have a lower density and viscosity than the surrounding host crust, and the mixtures should ascend due to buoyancy.
Hirohisa Matsuura (4924876), Kazuhiro Miyazaki (804835), Toru Danhara (4924879), Hideki Iwano (4924873), Takafumi Hirata (538524), Takeshi Ikeda (463875)   +5 more
core   +1 more source

Contribution géochimique à l'étude du problème des migmatites de Kaysersberg (Vosges)

, 1976
Die Zusammensetzung metamorpher Einschlüsse in granitischer, zum Teil porphyroblastischer Matrix, die Migmatite von Kaysersberg waren Gegenstand einer geochemischen Untersuchung.
Fluck, Pierre, Pierre Fluck
core   +1 more source

Rare-metal mineralization and crust-derived magmatism in a collisional orogen: the Variscan metallogenic odyssey of the Sioule region (French Massif Central)

BSGF - Earth Sciences Bulletin
The Sioule region in the northern part of the French Massif Central of the Variscan belt hosts the Echassières complex, where a large W(-Sn) quartz vein system was intruded by the Beauvoir rare-metal granite (RMG) hosting disseminated Sn, Nb-Ta and Li ...
Ballouard Christophe, Carr Patrick A., Monnier Loïs, Fidalgo Jean-Charles, Rocher Océane, Esteves Nicolas, Laurent Oscar, Daoulas-Gérardin Marie, Peiffert Chantal, Declercq Lou, Mercadier Julien, Plunder Alexis, Melleton Jérémie   +12 more
doaj   +1 more source

Partial Melting and Crustal Deformation during the Early Paleozoic Wuyi–Yunkai Orogeny: Insights from Zircon U-Pb Geochronology and Structural Analysis of the Fuhuling Migmatites in the Yunkai Region, South China

, 2019
Migmatites record crucial information about the rheology and tectonothermal evolutionof the deep crust during orogenesis. In the Wuyi–Yunkai orogen in South China, migmatites at Fuhuling record Early Paleozoic high temperatures and associated ...
Rina Sa, Ruxin Ding, Gongjian Tang, Yakymchuk, Chris, Zhen Zeng, Hanqi Liu, Tang, Gongjian, Chris Yakymchuk, Wang, Yong, Liu, Weiliang, Ding, Ruxin, Sa, Rina, Zhang, Junhao, Zeng, Zhen, Weiliang Liu, Liu, Hanqi, Qingyan Xu, Yong Wang, Junhao Zhang, Xu, Qingyan   +19 more
core   +1 more source

High-alumina gneisses of the Chupa Formation in the Belomorian Mobile Belt: metamorphic conditions, partial melting, and the age of migmatites

Записки Горного института
Migmatized gneisses of the Chupa paragneiss Formation in the Belomorian Mobile Belt (BMB) of the Fennoscandian Shield have been studied, and the conditions of partial melting during high-grade metamorphism of the rocks were determined.
Anastasiya V. Yurchenko, Shauket K. Baltybaev, Tatyana A. Myskova   +2 more
doaj  

Metamorphic evolution of Palaeoproterozoic anatectic migmatites in the eastern part of the Aravalli–Delhi Fold Belt, India: constraints from thermodynamic modelling and monazite dating

, 2017
Garnetiferous pelitic to psammopelitic migmatites widespread across the central and eastern part of the Aravalli–Delhi Fold Belt in NW India record two distinct orogenies, e.g. the Aravalli Orogeny (1.7–1.6 Ga) and the Delhi Orogeny (1.0 Ga).
L. SAHA, M. JANAK, I. PETRIK, A. PRAKASH, A. BHATTACHARYA   +4 more
core   +1 more source

Structural successions used to compare tectonic histories of Svecofennlian migmatites from widely separated outcrops in southern Finland

, 2007
A study has been made to test the likelihood that migmatites cropping out in the Finnish Archipelago have undergone a different, similar, or identical, tectonic history to those in small, poorly exposed inland areas of the forested region further east in
Hopgood, Alaric M.
core   +1 more source

Evidences of ductile to brittle deformation and syn-tectonic emplacement on the Neoarchean granitoids, Nalgonda area, Eastern Dharwar craton, southern India

Discover Geoscience
Situated at the Eastern Dharwar craton in India, the Nalgonda area consists of Neoarchean granitoid plutons variably deformed and intruded by few mafic rocks.
Soumya Shukla, Ntieche Benjamin, Ilouga Dieudonne Charles Isidore, Ntoumbe Mama   +3 more
doaj   +1 more source

The metasedimentary-hosted Nyangoubé gold prospect, northwest Côte d'Ivoire: Geochemical and mineralogical characterization of associated hydrothermal alteration. [PDF]

Heliyon, 2023
Djagre L, Koffi BG, Camara M, Ouattara G, Agbossoumonde Y.   +4 more
europepmc   +1 more source

Link Migmatites to Granitic Body

Journal of Geography (Chigaku Zasshi), 1997
Five problems of anatexites and granites have been discussed to study the generation of granitic body. The first is that partial melting takes place in non-equilibrium conditions originated from element-transfer in crystal and from melt-migration in migmatite. Minerals in non-equilibrium relation generally coexist in a migmatite.
openaire   +2 more sources