Contrasting mineral assemblages in polymetamorphic rocks from South Transdanubia (Hungary)
Lelkes-Felvari, Gyongyi; Mazzoli, Claudio; Visona, Dario
European Journal of Mineralogy Volume 1 Number 1 (1989), p. 143 - 146
published: Mar 21, 1989
ArtNo. ESP147050101018, Price: 29.00 €
Abstract In the northern part of the Tisza Superunit (Hungary), the Vajta-3 borehole crosscuts basement rocks. The Al-rich metapelites contain contrasting mineral assemblages : an older kyanite + staurolite + almandine assemblage, which may be referred to a Barrovian-type metamorphic event, and a younger andalusite + biotite + (almandine) assemblage, indicating a low-pressure event. In spite of the complete lack of geochronological data, a two-stage metamorphic history for the Tisza Superunit does fit the picture emerging from the literature for the whole Hungarian basement.