大哈拉军山组最初由1976年新疆区调大队一分队命名,立名剖面位于新疆特克斯县东南大哈拉军山.其岩性为一套火山岩、火山碎屑岩夹正常碎屑岩,由于古生物化石较少,其时代依据多根据上下接触关系确定.近年来通过大面积区域工作,发现该套地层广泛分布于伊宁盆地和特克斯盆地周围及博罗科努山南北坡. The Dahalajun Mountain Formation was originally named as a detachment of the Xinjiang Regiment Brigade in 1976. Its name is located in the Dahala Army, southeast of Turks County, Xinjiang Province, and its lithology is a set of volcanic rocks with volcanic clastic normal clastic Due to the small number of paleontological fossils, its age is determined according to the contact relationship of up and down, and in recent years, it has been found that the strata are widely distributed around the Yining basin and the Turks basin and the south and north slopes of the Boluohelun Mountains .