The Klematia–Paramythia basin is an internal part of the middle Ionian zone of the
Hellenide orogen in western Greece. It consists of Middle Eocene to Late Miocene turbidites, up to
3300 m thick, which were deposited in a series of submarine fans. Field studies suggest that the configuration
and the depositional environments of the basin were affected by two tectonic phases. During
the first tectonic phase, in Middle Eocene to Late Oligocene times, a foreland basin was formed west of
the Pindos Thrust front. During the second tectonic phase, in the Early Miocene, the Ionian zone (a
part of the foreland basin) was subdivided by internal thrusting into three sub-basins (internal, middle
and external) and changed to a complex type foreland basin. Comparison of the type and facies associations
of the turbidite deposits that accumulated within the basin suggests that these two tectonic
phases had a significant effect on sedimentary dispersal patterns. During the first tectonic phase in the
Klematia–Paramythia basin (when it was part of the foreland basin), fine-grained turbidites, up to
1050 m thick, accumulated on the distal part of a submarine fan. The lower part (900 m thick) of these
deposits consists of thin to thick interbedded sandstone/mudstone beds which are interpreted as lobes
and lobe-fringe (outer-fan) deposits. The upper parts (150 m thick) of these deposits are composed of
very thin to thin siltstone/mudstone beds, representing a basin plain environment. During the second
tectonic phase, sediments up to 2260 m thick were deposited in the Klematia–Paramythia basin. These
deposits are interpreted as lobes and lobe-fringe (outer-fan) fine-grained turbidites in the central part
of the basin, channel and interchannel deposits (inner-fan) in some areas of the periphery of the basin,
and shelf deposits in the northern and southern terminations of the basin.