Informace o publikaci

ROKLE, MAGMATIC AND WALL ROCKS OF THE WESTERN GRANODIORITE AREA, BRNO MASSIF

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HRDLIČKOVÁ Kristýna HANŽL Pavel BÁRTA František

Rok publikování 2019
Druh Článek ve sborníku
Fakulta / Pracoviště MU

Přírodovědecká fakulta

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www Celý sborník ke stažení.
Popis Large cliffs on banks of the Brno Lake expose rocks of the Western Granodiorite Area (WGA; part of the Thaya Terrane sensu Finger et al. 1989) of the Brno Massif. Neoproterozoic biotite and amphibole–biotite granodiorite with common mafic (microdiorite and biotite–amphibole quartz diorite) enclaves. The felsic and mafic magmas have mutually interacted with each other forming magma mingling textures (Fig. 8-1, 8-2). Magmatic foliation is steep and NW–SE trending (Fig. 8-3). Country-rock xenoliths, e.g. fine-grained banded amphibolite with thin pegmatite and granite veins (Fig. 8-4), could be found in outcrops on the left bank. Foliation in xenoliths is of similar orientation as is the magmatic one in the granodiorite.