Investigation of unusual phenomena in cosmic rays with Tien Shan and Pamir experimental setups at energy higher than 1-PeV. II

Numerous unusual phenomena observed in cosmic ray experiments at energy > 1 PeV can be effectively studied with modern large-scale combined setups located at high mountain altitudes. Construction in the nearest future of the new setups at Chacaltaya, Tien Shan and Pamir Mountain Stations situated at different altitudes will provide physicists with important additional information on the nature of unusual phenomena. In this report, we discuss the main physics problems that should be investigated by means of the mountain-level setups.