Report on Late Paleozoic bimodal volcanic associations discovered in Northern Mongolian Rift zone

1. Objectives Within the Northern-Mongolian –Transbaikalian Rift system, bimodal volcanic associations with felsic agpaitic rocks are widespread, often accompanied by alkaline granites plutons. There are two segments in the Rift system structure –Northern-Mongolian with length of 600 km and Western-Transbaikalian with length of 800 km on latitude.