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(二)山字型构造东秦岭地区跨越了三个山字型构造,祁吕贺兰山字型构造前孤占据图幅北部,淮阳山字型西翼反射弧位于图幅东南缘,而武都山字型东翼反射弧的一部分则分布于图幅西部星红铺——两河口一带。
(Two) mountain font structure The East Qinling Mountains across the three mountain font structure, Qilu Helan mountain font structure of the former occupy the northern part of the map, Huaiyang Mountain font west wing reflex arc is located in the southeast edge of the map, and Wudu A part of the mountain wing’s eastern wing reflex arc is located in the western part of Hongdupu - Lianghekou.