MINERALOGICAL RESEARCHES AT SNEZHNAYA - MEZHENNOGO - ILLUZIYA CAVE SYSTEM AT SECTION OF SACHALINSKAYA GALLERY (BZYBSKIY RIDGE, WESTERN CAUCASUS)
In present paper the mineral composition of secondary mineral formation and clastic deposits of Snezhnaya - Mezhennogo - Illusia cave system is examined at the interval of Sakhalinskaya Gallery on the depth of nearly 500 m from the entrance of the cave named after S. Mezhenniy. The secondary mineral formations are formed by calcite, aragonite, gypsum and hydromagnesite, the clastic formations are formed mainly by dolomite, quartz and calcite. The secondary mineral formations of Mezhennogo cave are similar with secondary mineral formations of Snezhnaya Cave.