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Record #110668:

Tectonic setting of Late Svecofennian granitoid magmatism and associated mineralization / Gabor Gaál.

Title: Tectonic setting of Late Svecofennian granitoid magmatism and associated mineralization / Gabor Gaál.
Author(s): Gaál, Gabor.
Date: 1991.
In: Geologiska Föreningens i Stockholm Förhandlingar. (1991.), Vol. 113(1) (1991)
Abstract: Concludes that Early Proterozoic crust was consolidated 1.87-1.84 Ga ago, followed by rapid uplift of Svecofennian terrain and denudation. Uplift was probably accompanied by magmatic underplating of lower crust. Post-collisional thermal relaxation resulted in generation of basaltic layer by partial melting of upper mantle; layer was source of anomalously high heat flow and melting of lower crust. Faulting associated with deformation tapped magma layer in lower crust, leading to intrusion of widespread, predominantly S-type granitoids of predominantly alkaline affinity.
Notes:

Geologiska Föreningens i Stockholm Förhandlingar. Vol. 113(1) :48-49 (1991).

Keywords: 551.24 -- Geotectonics.
552 -- Petrology.
552.3 -- Igneous rocks.
553 -- Economic geology.
553.042 -- Mineral resources.
B -- Geology and soil sciences.
(*56) -- Finland.
(*57) -- Sweden.
SPRI record no.: 110668

MARCXML

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100 1# ‡aGaál, Gabor.
245 10 ‡aTectonic setting of Late Svecofennian granitoid magmatism and associated mineralization /‡cGabor Gaál.
260 ## ‡a[S.l.] :‡b[s.n.],‡c1991.
300 ## ‡ap. 48-49.
500 ## ‡aGeologiska Föreningens i Stockholm Förhandlingar. Vol. 113(1) :48-49 (1991).
520 3# ‡aConcludes that Early Proterozoic crust was consolidated 1.87-1.84 Ga ago, followed by rapid uplift of Svecofennian terrain and denudation. Uplift was probably accompanied by magmatic underplating of lower crust. Post-collisional thermal relaxation resulted in generation of basaltic layer by partial melting of upper mantle; layer was source of anomalously high heat flow and melting of lower crust. Faulting associated with deformation tapped magma layer in lower crust, leading to intrusion of widespread, predominantly S-type granitoids of predominantly alkaline affinity.
650 07 ‡a551.24 -- Geotectonics.‡2udc
650 07 ‡a552 -- Petrology.‡2udc
650 07 ‡a552.3 -- Igneous rocks.‡2udc
650 07 ‡a553 -- Economic geology.‡2udc
650 07 ‡a553.042 -- Mineral resources.‡2udc
650 07 ‡aB -- Geology and soil sciences.‡2local
651 #7 ‡a(*56) -- Finland.‡2udc
651 #7 ‡a(*57) -- Sweden.‡2udc
773 0# ‡7nnas ‡tGeologiska Föreningens i Stockholm Förhandlingar. ‡gVol. 113(1) (1991) ‡wSPRI-15270
917 ## ‡aUnenhanced record from Muscat, imported 2019
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