Stratigraphical Geoheritage of the North-West Caucasus

North-West Caucasus consists of Cretaceous and Paleogene deposits in predominantly. Isolated areas are formed of Jurassic deposits. Regional research of the Tithonian-Berriasian boundary is very important, but it is limited by different reasons. Firstly, it is a block structure of the North-West Caucasus, which developed in consequence of the Alpin folding. Secondly, it is a rich modern vegetation. Thirdly, few sections are intensive destroyed in result of mining activity. In particular, there is the Neveb mountain in the Tuapse River valley. That mountain is used by Krivenkovsk quarry for the extraction of building stone. Neveb mountain is stratotype for Neveb Formation (Oxfordian-Berriasian). It formed by mudstones and siltstones with interlayers of olistostromes and clastic limestones in the lower part. Tithonian foraminifers Lenticulinaaff. tadeushi Makarjeva, Trocholina giganta Gorbatchik et Mansurova, Trocholina alpina (Leupold et Bigler), Spirillina kuebleria Miatliuk,Hyperammina sp., Ammobaculites sp., Nodobacularia sp. (identification of Pinchuk T.N.) were found in mudstones. Upper part of the Neveb Formation is formed by limestones, mudstones and marls. Separate beds into all formation are characterize by ammonoides, belemnites, foraminifers, and sponges. Corals, bryozoans, and plant detritus are meet also. Abundance of pyrite (concretions, brushes, pyritized fossils) are indicated on the sulfide reducing environments. Within a 10 km radius from Neveb mountain are located Induk and Two Brothers mountains. Both mountains consist of volcanogenic-sedimentary deposits of the Induk Formation. There are two members of that formation. Lower member is formed by quartz porphyries with rare layers of tuffs, tuff breccias and siltstones. Upper member of the Induk Formation is represented by mudstones, sandstones, tuff sandstones, siltstones, and tuffs with small garnets. Deposits of the Induk Formation dated Aalenian, Middle Jurassic by stratigraphical position, rare ammonoides Leioceras opalinum Reinecke, L.acutum Qenstedt, and foraminifers. Cuts of the Induk and Neveb mountains are stratotypes for stratigraphical divisions of the local scheme of the North-West Caucasus. Study localities of the Neveb and Induk Formations are suggested as regional objects of stratigraphical geoheritage. Geosites from Tuapse River valley are complex with stratigraphical type in dominate. Sedimentational, palaeogeographical, and mineral types are presented also. The heritage aspects of the research area are related to the development of the late Jurassic-early Cretaceous marginal seas in northern part of Tethys. North-West Caucasus was a part of Large Caucasus trough with intensive carbonate sedimentation, abundance turbidities and mudslides. There is a shallow-water basin surround of trough. Clastics of reef buildings and products of local volcanism are accumulated into during late Jurassic. Stratigraphical geoheritage is very important for science and practice aims. However, it disappears in modern conditions. Actions by their preservation are necessary. The research was founded by the Russian Science Foundation (project № 25-27-00476).