北部为新生界黄土及沙砾沉积为主,南部以古生界灰岩为主,岩层呈向北倾斜
的单斜构造,三组断裂切成块状。
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北部为新生界黄土及沙砾沉积为主,南部以古生界灰岩为主,岩层呈向北倾斜
的单斜构造,三组断裂切成块状。