摘要
丹霞地貌发育的基本条件,一是粒度较粗的红层碎屑岩碳酸盐含量不很高(在湿热气候条件下),二是新构造运动以来地壳抬升幅度达数百米以上,如今多成为红层高丘陵或低山的地区。丹崖赤壁群是丹霞地貌形态的基本特征,因此,丹霞地貌是由沉积岩构成的丹崖赤壁群地貌。新宁丹霞地貌的最大特征是丹霞天生桥多,仙人桥跨度64m,全国第一。
The basic conditions for development of Danxia Landform are. (1) There are coarse clastic rocks with not very high carbonate content in conditions of damp and hot climate; (2) The earth crust there has lifted for hundreds metres since Neotectonic Movement and the area is mostly of high hills or low mountains today. Danxia Landform is characterized by the red precipices. In xinning County there are many Danxia natural bridges, of which the span of Celestial Bridge is 64 m, ranking the first in China.
出处
《热带地理》
北大核心
1993年第2期168-175,共8页
Tropical Geography
