英语翻译
The South Hentey and Adaatsag zones are composed of metamorphosed volcanoclastic rocks and ophiolite melanges of 325 Ma,which marks the suture of the Mongol-Okhotsk palaeo-ocean.Many parts of this region are intruded by a variey of collisional granitoids,Silurian in age in the north to Upper Permian to Lower Triassic in the south.