The TTG-Amphibolite Terrains of Arctic Fennoscandia: Infinite Networks of Amphibolite Metatexite-Diatexite Transitions [PDF]
Frontiers in Earth Science, 2020 The Earth’s early basaltic crust converted episodically into felsic TTG (tonalite-trondhjemite-granodiorite) crust by unknown tectonic processes. To contribute to the debate on the possible tectonic settings of TTGs, this article illustrates and explains
Jaana Halla
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FERROHÖGBOMITE-2S2N IN THE DIATEXITES OF WESTERN SANGILEN, SOUTH-EASTERN TUVA, RUSSIA
Геодинамика и тектонофизика, 2022 In the Western Sangilen (Tuva–Mongolia microcontinent, Central Asian Orogenic Belt, Russia) rare mineral ferrohögbomite-2S2N, for the first time, was found in a deep-seated contact aureole of the early Paleozoic Bayan-Kol gabbro-monzodiorite intrusion ...
A. Yu. Selyatitskii
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Eastern margin of the Vaasa Migmatite Complex, Kauhava, western Finland: preliminary petrography and geochemistry of the diatexites [PDF]
Bulletin of the Geological Society of Finland, 2001 Extensive biotite diatexites resembling S-type granitoids occur in the eastern part of the Vaasa Migmatite Complex (VMC, 1.89 Ga, 6000 km2) at Kauhava, western Finland.
H. Mäkitie
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Evaluation of the contributions of possible sources to the leucosome of the diatexite of Socorro-Guaxupé Nappe, in the Alfenas Region, MG, Brazil [PDF]
Brazilian Journal of Geology, 2019 The Socorro-Guaxupé Nappe crops out in southern Minas Gerais and it has an intermediate unit called Metaxite Unit, dominated by diatexites at its base, with large volumes of leucosome and schollen of stromatic garnet-biotite metatexite.
Lizeth Hernandez Tasco, Renato Moraes
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The age and origin of the Vaasa migmatite complex revisited [PDF]
Bulletin of the Geological Society of Finland, 2014 The origin of the Vaasa migmatite complex was studied by using whole-rock Sm-Nd and zircon Lu-Hf and U-Pb data in conjunction with whole-rock major and trace element geochemistry.
E. Suikkanen +3 more
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Structure of a Variscan migmatite-granite transition zone (N Sardinia, Italy)
Journal of Maps, 2023 This paper presents the structural map of the Barrabisa Complex, an E-W ribbon-like migmatitic massif exposed in the northern part of Sardinia. The migmatites consist of metatexites and diatexites with variable melt proportion, grading in the central ...
M. De Luca +5 more
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Formation mechanism of the Vaasa Batholith in the Fennoscandian shield: Petrographic and geochemical constraints [PDF]
Bulletin of the Geological Society of Finland, 2012 The ~1.88 Ga Vaasa Batholith in western Finland is a large granitoid area (8 000 km2) with gradational contacts against the garnet- and cordierite-bearing diatexite and metatexite migmatites of the Pohjanmaa Belt.
H. Mäkitie +4 more
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Petrogenesis of Secondary Diatexites and the Melt Budget for Crustal Reworking [PDF]
Journal of Petrology, 2020 Abstract This study investigates the petrogenesis of diatexite migmatites and leucogranites in a granulite facies terrain and quantifies the melt budget for it. The anatectic rock types in the Ashuanipi Subprovince are: (1) melt-depleted orthopyroxene metatexite migmatite, (2) secondary diatexite migmatite formed where anatectic melt ...
openaire +1 more source
Geochemistry, Geophysics, Geosystems, 2021 As seismic data from the lower crust becomes more readily available, it is important to link seismic properties to the ongoing processes within lower crustal evolution.
Yilun Shao +7 more
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Relationship between deformation structure and partial melting in pelitic migmatites of Hamaden region, Sanandaj-Sirjan Zone [PDF]
پترولوژیThe present paper describes some field characteristics of deformation in a high-strain and high temperature zone in migmatitic rocks, with several kilometers wide occurring in Hamedan and Toyserkan regions, NW of the Sanandaj- Sirjan Zone.
Seyedeh Razieh Jafari, Leyli Izadi Kian
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