ZPRÁVA O VÝZKUMU TREMOLITOVÝCH MRAMORŮ U KUROSLEP NA ZÁPADNÍ MORAVĚ (OLEŠNICKÁ SKUPINA, MORAVIKUM)

Roč.7,(2000)

Stanislav Houzar Monika Němečková Milan Novák

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Abstrakt
Calcite and dolomite marbles exposed in small quarry near Kuroslepy forms, up to 20 m thick, elongated body in metapelites (biotite- to muscovite-biotite gneiss) of the Olešnice Group (Moravicum). The tremolite marbles with mineral assemblages Cal + Tr + Phl + Gr ± Dol ± Qtz and Dol + Cal + Tr ± Phl form relative thin layers (< 2 m) within the large metacarbonate body. The PTX conditions of metamorphism estimated from stabilities of the assemblages correspond to Tmax.= 580-620oC at XCO2= 0.2-0.7 and Tmin.= 480-530°C at XCO2= 0.2-0.6 at Ptotal= 500 MPa. Although marble body occurs close to Bíteš orthogneiss, no relics of the HT/LP metamorphism or metasomatic infiltration skarns are evident.

Klíčová slova:
tremolite marbles; geological position; mineral assemblages; Olešnice Group; Moravicum
Reference

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