Microfacies and cycle stacking pattern in Liassic peritidal carbonate platform strata, Gavrovo-Tripolitza platform, Peloponnesus, Greece |
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Authors: | Fotini Pomoni-Papaioannou Vassiliki Kostopoulou |
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Institution: | (1) Department of Geology and Geoenvironment, Section of Historical Geology and Palaeontology, National University of Athens, Panepistimiopolis, 157 84 Athens, Greece |
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Abstract: | Platform carbonate sediments of Liassic age cropping out in the area of the Pigadi-Fokianos Gulf (SE of Leonidion, Peloponnesus)
have been investigated in order to determine their depositional environment. Facies analysis allowed the recognition of several
microfacies types and their cyclic stacking pattern. The carbonates were deposited in a restricted inner platform environment
(lagoon-peritidal domain) and are arranged into small-scale shallowing-upward cycles. Palaeosol horizons containing typical
pedogenic features are developed on the top of the peritidal facies or are directly superimposed on subtidal deposits, forming
diagenetic caps. This implies repeated sea-level fluctuations and periodic emersion episodes. The presence of orbitally forced
cyclicity though is mostly probable, cannot be clearly documented by the available data. The studied carbonates are comparable
with other coeval analogous peritidal cycles of the same age along the southern margin of the Tethys. |
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Keywords: | Early Jurassic Peritidal carbonates Microfacies analysis Cycle stacking pattern Subaerial exposure Palaeosols Gavrovo-Tripolitza platform Greece |
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