SHALLOW-CRUSTAL POST-TECTONIC EMPLACEMENT OF VEZHEN PLUTON, CENTRAL STARA PLANINA MOUNTAINS

Intrusive relationships of Vezhen pluton with its host greenschist metamorphic Diabase-Phyllitoid Complex evidence post-tectonic (post-metamorphic) granitoid emplacement at 314 4:8 Ma. The lack of a second foliation set within the contact aureole rocks, as well as the fact that the pluton is almost isotropic, suggest passive emplacement without signicant oriented stress. On the contrary, the particular emplacement mechanisms (dyking, dilatation, lateral displacement of host) point to easy resolving of the \space problem" for granodiorite magma accommodation. All structures within intrusive and host rocks indicate that the