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一、地下水形成的自然地理和地質构造特点本区位于内蒙高原的中部,为一飽经構造剝蝕,略呈波狀起伏的高原,海拔标高为900—1900公尺,地形由南向北逐渐降低,至高原北部中蒙边境,标高約在900公尺左右。境内南北兩面,皆为丘陵山地所分布,南面为高峻的阴山山脉和阴山北麓的丘陵地帶,多为古老的变質岩系及花崗岩所組成,标高为1300—2000公尺左右;北面为橫耳中蒙边境的低山丘陵,多系由
First, the formation of groundwater characteristics of natural geography and geological structure The area is located in the middle of the Inner Mongolia plateau, as a result of structural erosion, a little undulating plateau elevation of 900-1900 meters, the terrain gradually decreased from south to north , North of plateau to Mongolia border, elevation of about 900 meters. North and South sides of the territory are all distributed in the hilly mountains, south of the steep Yinshan Mountains and the northern foot of Yinshan hills, mostly of the ancient metamorphic rocks and granite composition, elevation of 1300-2000 meters; north of the horizontal The Mongolian border Mongolian hilly, more lines by