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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

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

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

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

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

open access: yesBulletin 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   +1 more source

U-Pb zircon geochronology of selected Archaean migmatites in eastern Finland [PDF]

open access: yesBulletin of the Geological Society of Finland, 2007
U-Pb SIMS data on eight samples (four mesosome-leucosome pairs) from migmatites in gneiss complexes are presented from the western part of the Archaean Karelian craton, eastern Finland. Most zircon grains in the mesosomes yield ages between 2.84 Ga and 2.
A. Käpyaho   +2 more
doaj   +1 more source

Evolution of migmatitic granulite complexes: Implications from Lapland Granulite Belt, Part I: Metamorphic geology [PDF]

open access: yesBulletin of the Geological Society of Finland, 2006
The Palaeoproterozoic Lapland granulite belt was juxtaposed between Archaean and Proterozoic terrains in the NE part of the Fennoscandian Shield concurrently with the accretion of Svecofennian arc complexes at ~1.9 Ga.
P. Tuisku, P. Mikkola, H. Huhma
doaj   +1 more source

Study of Migmatization and Leucocrate granite formation processes in the Tuyserkan area, Hamedan

open access: yesJournal of Economic Geology, 2020
Introduction Partial melting is an appropriate correlation process between metamorphism and magmatism which plays a key role in the development of migmatites, granulites and S-type granites during crust evolution (Kriegsman, 2001; Alvarez-Valero and ...
Masoumeh Zare Shooli   +3 more
doaj   +1 more source

Eastern margin of the Vaasa Migmatite Complex, Kauhava, western Finland: preliminary petrography and geochemistry of the diatexites [PDF]

open access: yesBulletin 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
doaj   +1 more source

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