The Structure and Formation Conditions of the Upper JurassicSuccession in the Area of Mount Pakhkal-Kaya (Crimea)

摘要

It has been found that the section in Mount Pakhkal-Kaya consists of three structural units sepa-rated by almost bedding-plane faults presumably arranged in a normal stratigraphic succession: conglomerate succession (I, ?J_3ox (Oxfordian)), carbonate succession (II, ?J_3km(Kimmeridgian)—tt(Tithonian)), and a conglomerate-breccia unit) (III, J_3km-tt). Each of these successions corresponds to a certain stage of basin evolution, viz., formation of a Gilbert-type delta and the accumulation of a carbonate platform rimmed with a shoal and destruction of the platform margin during its periodic exposures.