Аннотация
Deeply buried Devonian sediments of the eastern edge of Precaspian Basin are widely extended; Upper Devonian reef-like deposits can be identified according to seismic surveys and poorly characterized by core material. In the present study depositional environment, predominant biota and diagenetic characteristics of the KT-III carbonate formation are described in order to evaluate reservoir potential. The paper presents the results of determining the mineral composition, geochemical features, sedimentological (identification and description of microfacies) and diagenetic characteristics of the Upper Devonian carbonate sediments of the Urikhtau area (KT-III).