Summary:
This study aims to understand the deformation pattern of the broader area of
Skyros, by
analyzing geodetic and seismotectonic data in conjunction with morphotectonic
analysis
both the mainland and the offshore area, as well as geological observations
from the island.
This region constitutes the transition from the right lateral strike slip fault
systems, branches
of North Anatolian Fault, to the Central Hellenic Shear Zone. The south branch
of North
Anatolian Fault enters the Aegean region north of Mytilene and ends south of
Skyros. The
total displacement of the strike – slip fault zone, is distributed through
several branching
synthetic splay faults – horsetail splay, which creates the Skyros basin, while
at the same
time there are transverse active zones (NW – SE orientation), which help the
absorption of
total displacement, too. On the Island of Skyros, there are oblique – normal
fault systems of
NE – SW orientation, and dip slip towards NW, probably inactive, which are
associated
genetically with the main zone south of Skyros, while also we can notice the NW
– SE
orientation transverse zone, which is a left lateral negative flower structure
and probably
crosscuts the NE – SW orientation zone.
Keywords:
Skyros, Central - North Aegean, North Anatolian Branch, Strike - slip, horsetail splay structure