本文叙述象牙海岸及几内亚的潮湿热带地区及干燥热带地区边界上的花岗岩穹地。在潮湿热带地区内,这些穹地被松散的风化产物所掩盖,这里风化的速度与风化产物的排除速度相等,或者超过了风化产物的排除速度。因此,在潮湿地区内,很明显地表现在地形上的花岗岩穹地分布不广。在气候干燥的地区内, This article describes the granite domes in the humid tropics of the Ivory Coast and Guinea, and in the dry and tropical regions. In the humid tropics, these domes are overshadowed by loosely weathered products where weathering rates are equal to or less than the rate of weathering products. Therefore, it is obvious that in wet areas, the distribution of granite domes on the terrain is not extensive. In a dry climate,