GEOLOGICAL FEATURES OF THE INDER SALT DOME BASIN OF THE INDER DISTRICT OF THE REPUBLIC OF KAZAKHSTAN

Abstract

Annotation. This article describes the Jurassic and Cretaceous deposits of the Inder salt dome basin of the Inder district of Atyrau region of the Republic of Kazakhstan. The material for the work was observations and samples found in the spring of 2023. The materials were studied using experiments and methods used in classical paleontology and geology.

An important feature of the structure of the salt dome is Mesozoic deposits. Jurassic and Cretaceous marine deposits are characterized by abundant marls and limestones. On the slopes of the Koktau ridge, rocks of the Triassic period are represented on the surface by red clays, transverse sandstones and conglomerates. The following remains of invertebrates have been found in the fauna: bass clams Belemnitella mucronata, dioecious shellfish Gryphea dilatata, Sea urchin shell Echinocorys sp., the only scleractin coral Caryophyllum similotrochus.