GEOLOGICAL STRUCTURE OF THE CHANGYZ-KHADYN COAL DEPOSIT OF TUVA
This article discusses the geological features of the Changys-Khadyn coal deposit including its genesis, structure and qualitative and quantitative indicators, as well as mineral reserves. The Paleozoic reserves of the Ordovician (Shemushdag series), Silurian (Chergak series), Lower and Middle Devonian (respectively, the Kendean and Sangilen formations) and the Mesozoic coal formations of the Middle Jurassic make the geological structure of the Changyz-Khadyn coal eld.Middle Jurassic rocks at the Changyz-Khadyn eld with angular uncomformity lie on the Paleozoic deposits and have a geological structural plan that diers from the basement rocks, forming their own Jurassic structural level. The underlying coal sediments are sediments of the Chergak, Kendean and Saglin formations. Deposits of the Shemushdag series adjoin the territory of the deposit from the north.Jurassic system, middle section, Aalen tier, Erbek level (J2 er1). Deposits of the level with angular uncomformity lie on the eroded surface of the Paleozoic rocks, performing a hollow defiection to the east.