According to the characteristics of strata , tectonization and magmatism within the research area in the southwest margin of north china paleocontinent , and under the ideological guidance of mobilism and systematology , the geotectonic framework of the area could be divided as follows : ( 1 ) the longshoushan mountains continental margin ; ( 2 ) the hexi corridor back - arc basin ; ( 3 ) the northern qilianshan mountains suture zone ; ( 4 ) the central qilianshan mountains dispersion type island arc terrane ; ( 5 ) the southern qilianshan mountains back - arc basin ; ( 6 ) the qaidam massif 根據(jù)本區(qū)地層、構(gòu)造、巖漿作用特點(diǎn),在“系統(tǒng)論” 、 “活動(dòng)論”思想指導(dǎo)下,厘定華北古大陸西南邊緣的構(gòu)造格局如下:龍首山陸緣帶、河西走廊弧后盆地、北祁連縫合帶、中祁連離散型島弧地體、南祁連弧后盆地、柴達(dá)木地塊。