Positioned in a peculiar paleogeographic regime, near the Hellenic Trench, that is part of the still active subduction process in the eastern Mediterranean, Gavdos island, the southernmost part of Greece and Europe, offers insights, among others, into late Miocene sedimentary and tectonic processes. This study investigates the hydrocarbon generation potential of late Miocene sapropelic and mudstone/siltstones cyclic deposits through geochemical analysis of samples from two outcrops, namely the GL# and GC#. The GL# and GC# outcrops belong to the Tortonian and Messinian age respectively. GL# outcrop represents the lateral equivalent of the basal part of the main section originally described as Metochia-B, while GC# is a new outcrop (probably lateral linked to the Metochia-C), which covers part of the latest deposits that precede the Messinian Salinity Crisis (MSC) onset, firstly presented in this work. To evaluate the organic richness and hydrocarbon generation potential of these deposits, 59 samples were subjected to Rock-Eval VI pyrolysis.
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