The onset of the Pindos Foreland Basin in Epirus (NW Greece)

The onset of the Pindos Foreland Basin in Epirus (NW Greece)

Peeters, F.J.C.
Hoek, R.P.

Molengraaff Fonds

1992

An integrated study of dinoflagellate cyst distributions, paleocurrent analysis and lithostratigraphy is carried out for nine sections in the Pindos foreland basin of northwest Greece, in order to generate a construction of the Pindos foreland basin during the Late Eocene and Early Oligocene. All studied sections comprise a conspicuous change in lithology; from limestones via marl into turbidite sandstones, and mirror the onset of siliciclastic sedimentation in the initial phase of the Pindos foreland basin development, Dinoflagellate distributions suggest that: 1) All studied sections are of Late Eocene to Early Oligocene age (Aal to Hpu biozones) 2) A diachronism of 2 biozones marks the onset of siliciclastic sedimentation between the Internal and the Middle Ionian zone. A three-dimensional reconstruction of the palaeotopography of the studied region, based on isopach data, is made. Palaeocurrent analysis suggests at least two source areas (a northern and an eastern) to be active during the initial phase of foreland basin development. Similar and simultaneous sedimentological development of the Late Eocene to Early Oligocene sequences throughout the Pindos foreland basin suggest a relatively flat palaeotopography rather than an intensively differential foreland basin.

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Utrecht University

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