最近一年來,配合北京地震問題的研究,对北京附近的地質構造進行了片断的調查。由於北京及其附近的掩盖層很厚,在未進行物理探测和比較深的鑽探之前,对於北京附近地質構造是不易得到正確結論的。但根据西山及京东诸山的露头及前人的调查資料,却可以看出一个輪廓。北京西山地質構造系統是屬於以祁連山、吕梁山 In the recent year, in line with the study of Beijing’s earthquake problem, a series of surveys on the geological structure near Beijing have been conducted. Due to the thick cover in Beijing and its vicinity, it is not easy to get a correct conclusion about the geological structure near Beijing before physical exploration and deeper drilling are conducted. However, according to the outcrop of the Western Hills and Jingdong Mountains and the survey data of their predecessors, an outline can be seen. Beijing Xishan geological tectonic system belongs to Qilian Mountains and Luliang Mountains