Kinematics and deformation structures in a crustal-scale shear zone on Kea (W. Cyclades, Greece)
2006Universitätsverlag Göttingen
Sammelband- / Konferenzbeitrag
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Deutsch
Voit, Klaus; Grasemann, Bernhard; Draganits, Erich; Edwards, Michael A.; Müller, Monika; Iglseder, Christoph; Petrakakis, Konstantin; Exner, Ulrike, 2006: Kinematics and deformation structures in a crustal-scale shear zone on Kea (W. Cyclades, Greece). In: Philipp, S.; Leiss, B; Vollbrecht, A.; Tanner, D.; Gudmundsson, A. (eds.): 11. Symposium "Tektonik, Struktur- und Kristallingeologie"; 2006, Univ.-Verl. Göttingen, S. 239 - 240., , DOI: 10.23689/fidgeo-1844.
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It is generally agreed upon that the exhumation
of metamorphic rocks in the
Aegean is caused by post orogenic extension
in the late Oligocene to early
Miocene. This extension is in principle
largely accommodated by low-angle
crustal detachment faulting possibly resulting
in the formation of metamorphic
core complexes (MCC).
Here, we present data from recent structural
investigations on the island of Kea
in the W. Cyclades, Greece. Our work
focussed in the north of the island. Of
the ca. 270m total structural thickness
that was mapped, the entire section
of rocks are highly strained. Exhumation
during progressive deformation is
recorded by the transition from ductile
to brittle/ductile to brittle conditions.
The regional characteristics and types
of deformation structures vary depending
on the protolith and the intensity of
strain...
