摘要
北京位于中国地貌第二级台阶与第三级台阶的过渡带,山地为太行山(西山)与燕山(北山)的交汇之地,平原为华北平原的西北隅,山地和平原两大地貌单元造就两大地质环境系统。山地地质环境系统分为:西山南部碳酸盐岩区、中部火山岩区、北部碳酸盐岩区,北山西部松散沉积物区、中部岩浆岩区、东部变质岩区、东南部碳酸盐岩区。平原地质环境系统分为:山前岛状残丘区、拒马河冲洪积扇区、大石河冲洪积扇区、永定河冲洪积扇区、北运河洪积扇群区、北运河洪积扇群溢出带区、潮白河冲洪积扇区、蓟运河冲洪积扇区。
Located in the transitional zone between second step and the third steps Chinese landform, Beijing was in the junction of Taihangshan Mountain and Yanshan Mountain. The thesis frstly studied geological environment system from mountainous region and plain area in Beijing. The geological environment system of mountainous region was divided into Beijing Western Hills and Northern Hills. We marked off Carbonate Rocks System in southern of Beijing Western Hills, Volcanic Rock System in middle of Beijing Western Hills, Carbonate Rocks System in northern of Beijing Western Hills, unconsolidated sediment System in western of Northern Hills, Magmatic Rocks System in Northern Hills, Metamorphic Rocks System in east of Northern Hills, and Carbonate Rocks System in southeast of Northern Hills. The geological environment system of plain area was divided into that Island Hills and Alluvial-Proluvial Fan of Juma River, Dashi River, Yongding River, Beiyun River, Chaobai River and Jiyun River.
出处
《城市地质》
2017年第3期19-25,共7页
Urban Geology
基金
中国区域地质志--北京志修编项目资助(12120113012900)
关键词
地质环境系统
山地
平原
冲洪积扇
北京
geological environment system
mountainous region
plain area
alluvial-proluvial fan
Beijing
