Oligocene - Lower Miocene microfaunal zones of Western Azerbaijan

The Oligocene-Early Miocene deposits distinguished as the Maikopian Series are widely distributed from the Carpathian foreland to the Kopetdag foreland and include the territory of Azerbaijan as the main part. Today, the subdivision and correlation of the Maikopian Series sections both of this territory and of the whole Crimean-Caucasian Province still remain a topical problem of recent stratigraphy. Whereas the major part of the Maikopian Series is impoverished in microfaunal remains, such is not the case with the Ganja Petroliferous Region (GPR) located in Western Azerbaijan. The detailed zoning of the Maikopian Series has been performed basing on the study of samples from the exposed sections of the explored territory (Zeyva, Adjidere, Gurzalar and Garachinar). The developed stratigraphic scheme of the Maikopian Series includes the following microfaunal zones: the zone of small Globigerina; Caucasina schishkinskajae oligocenica, Nonion dendriticus; the zone of pauperated fauna; Bolivina ex gr. plicatella; Virgulinella poiliensis, the zone of uncharacteristic fauna; Neobulimina elongata leninabadensis and beds with Saccammina zuramakensis.

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