摘要
根据现场综合岩溶地质调查结果,分析了广花盆地西北部赤坭镇的自然地质环境条件、岩溶发育程度和地面塌陷分布特征,探讨了岩溶在水平面上及垂向上的分布特征及成因。结果表明:广花盆地西北部赤坭镇存在大面积的隐伏岩溶分布区,岩溶发育程度严重不均;区内岩溶发育往往受地形地貌、地层岩性、地质构造以及水文地质条件等多种因素控制;岩溶发育程度的差异是控制地面塌陷的主要因素。
According to field survey of karst geology,the authors analyze the natural geological environment conditions,karst development and surface collapse distribution feature of Chini Town in northwest Guang-Hua Basin,and study karst distribution feature both on horizontal and vertical direction.The results show that in Guang-Hua basin there is a large area of invisible karst,and the karst development differs in different areas,which is controlled by landform and physiognomy,lithological character of the strata,geologic structures,hydrogeological conditions and some other factors.The areal difference of karst development level is the main factor influencing the surface collapse.
出处
《热带地理》
北大核心
2011年第6期565-569,共5页
Tropical Geography
基金
广州市财政专项项目
关键词
广花盆地
岩溶发育
规律研究
Guang-Hua basin
Karst development
Study of the development rule
