北祁连造山带呈NW-SE向展布于阿拉善地块与祁连一柴达木地块之间,与秦岭、昆仑一起构成了中国大陆内部巨型中央造山带.近半个世纪以来,作为大陆板块构造研究摇篮的北祁连造山带备受国内外学者的关注,国内最早报道的蛇绿岩就发现于此.以往发现的北祁连蛇绿岩主要分 North Qilian orogenic belts NW-SE to spread between the Alxa Block and the Qilian-Qaidam block, together with the Qinling Mountains and the Kunlun Mountains constitute the giant internal central orogenic belt in mainland China .For nearly half a century, The North Qilian orogenic belt, the cradle of continental plate tectonics research, has attracted the attention of domestic and foreign scholars and the earliest reported ophiolite was discovered here. The North Qilian ophiolite previously found mainly contains