Altersbeziehungen zwischen Metamorphose und Deformation im zentralen Teil des Serbomazedonischen Massivs (Vertiskos Gebirge,Nord-Griechenland) |
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| Authors: | Dr C Papadopoulos Dr A Kilias |
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| Institution: | 1. Institute of Geology and Mineral Exploration (IGME) Mesogion 70, Athen, Griechenland
2. Institut für Geologie und Pal?ontologie der Universit?t, Thessaloniki, Griechenland
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| Abstract: | The relations between metamorphism and deformation of the crystalline rocks in the central part of the Serbomacedonian mass (mountain Vertiskos), are studied. It is found a syntectonic — amphibolitic metamorphic phase (Kr1) in reference to a folding phase (T1), characterized by almost vertical isoclinal shear-folds. This main metamorphism was followed by a syntectonic metamorphism of green schist facies (Kr2) in relation to a folding phase (T2), characterized by slightly inclined fractured folds, directied NNW-SSE to NNE-SSW. Finally, a very low grade metamorphic event (Diaphthorese, Kr3) influenced the whole rocks of the area. It can be regarded either as the final stage of the Kr2 phase or as a younger and distinct metamorphic event. The K/Ar and Rb/Sr datation of the white micas, biotites and hornblends showed that the Kr2 phase is of Cretaceous age and so the Kr1 phase must be older than Cretaceous. |
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