Alpine and pre-Alpine metamorphic Rocks from Prošara Mt. in northern Bosnia, Yugoslavia

Abstract

Two different granitic-metamorphic complexes can be distinguished in Prošara Mt. The Hercynian complex consists mostly of cataclastic and phyllonitized gneissgranites and amphibolites. Rocks of the Alpine metamorphic complex are much more widespread. They were formed under low- and very low-grade metamorphism from surrounding Upper Cretaceous sediments. The gradational changes can be traced in pelitic, psammitic, carbonate, and basic igneous rocks. UpperCretaceous age both of original sediments and low-grade metamorphic rocks is supported by mi ero fossils.Alpine metamorphism of Prošara Mt. can be related to subduction processes.

Keywords

• Alpine metamorphic Rocks
• Prošara Mt.
• northern Bosnia