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Geochemical dataset of high-pressure acid migmatites from the Cabo Ortegal Complex (NW Spain) [PDF]

open access: yesData in Brief, 2022
This brief note presents geochemical data from rock samples from the Cabo Ortegal Complex (NW Spain). The samples belong to acid lithologies within the mainly basic to intermediate granulite unit that have been poorly investigated so far.
Aratz Beranoaguirre   +5 more
doaj   +2 more sources

Palaeoproterozoic structural evolution of polyphase migmatites in Olkiluoto, SW Finland [PDF]

open access: diamondBulletin of the Geological Society of Finland, 2022
In migmatitic environments the behaviour of the system is controlled by the generation and amount of the anatectic melt. Accordingly, migmatites typically show a genetic linkage between the tectonic deformation and melt migration. We investigated this
Jon Engström   +3 more
doaj   +2 more sources

Rapid endogenic rock recycling in magmatic arcs [PDF]

open access: yesNature Communications, 2021
A case study of migmatites indicates that the juvenile arc crust underwent a rapid self-recycling process from arc magmatism to erosion and weathering at the surface, then to burial and remelting.
Jun-Yong Li   +8 more
doaj   +2 more sources

Applications and limitations of thermobarometry in migmatites and granulites using as an example rocks of the Araçuaí Orogen in southern Bahia, including a discussion on the tectonic meaning of the current results [PDF]

open access: diamondBrazilian Journal of Geology, 2015
In southern Bahia, there are outcrops of migmatites and granulites in the Jequitinhonha Complex, which is part of the northern portion of the Araçuaí Orogen.
Renato Moraes   +4 more
doaj   +2 more sources

Tectono-metamorphic evolution and timing of the melting processes in the Svecofennian Tonalite-Trondhjemite Migmatite Belt: An example from Luopioinen, Tampere area, southern Finland [PDF]

open access: diamondBulletin of the Geological Society of Finland, 1999
The Svecofennian Orogen is in southern Finland characterized by two major migmatite belts. These are the so-called Granite Migmatite Belt, in which Kfs-rich leucosomes predominate, and the Tonalite-Trondhjemite Migmatite Belt, which is characterized by ...
H. Mouri, K. Korsman, H. Huhma
doaj   +2 more sources

Thermal buffering-controlled temperature variation between Mg–Al-rich rocks and migmatites [PDF]

open access: yesScientific Reports
It is well recognised that endothermic processes such as dehydration and partial melting have the potential to exert measurable effects on the maximum temperatures reached in metamorphic rock systems.
Samantha March   +3 more
doaj   +2 more sources

Double Power-Law in Leucosome Width Distribution: Implications for Recognizing Melt Movement in Migmatites

open access: goldFrontiers in Earth Science, 2020
Leucosome sizes in migmatites has been shown to follow power-law distribution, which is indicative of self-organized criticality governing accumulation and transport of partial melts in anatexis.
Anna Saukko   +4 more
doaj   +2 more sources

PETROGRAPHIC STUDIES AND PHYSICO-MECHANICAL PROPERTIES OF BIRIMIAN GRANITOIDS – A CASE STUDY OF OYOKO GRANITOIDS COMPLEX IN KOFORIDUA [PDF]

open access: yesGeological Behavior, 2022
The study investigated the physico-mechanical and petrographic properties of the basin-type granitoids of the Oyoko granitoid complex, to establish their strengths for engineering properties.
Matthew Coffie Wilson   +4 more
doaj   +1 more source

Pre-1.91 Ga deformation and metamorphism in the Palaeoproterozoic Vammala Migmatite Belt, southern Finland, and implications for Svecofennian tectonics [PDF]

open access: yesBulletin of the Geological Society of Finland, 2004
A metamorphic event in the Vammala Migmatite Belt (VMB) at ~1.92 Ga, revealed by SHRIMP U-Pb analyses of both zircon overgrowths and monazite, is interpreted as post-depositional and is correlated with the development of the early high-grade schistosity.
R.W.R. Rutland   +2 more
doaj   +1 more source

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