| The mineral resources set out below have been grouped together by main geomorphologic unit. |
| Later geomorphologic studies include those conducted by Italians, notably Ardito Desio and Giotto Dainelli. |
| Arid and semi-arid landscapes often contain unique geomorphologic features. |
| No information is currently available on geomorphologic feature types in protected areas or by ecozone. |
| The nature of the danger from different kinds of disaster varies enormously depending on geographical, climate and geomorphologic circumstances. |
| Through such methods, especially when combined with geomorphologic techniques, it is possible to demonstrate that at no time in the past were all areas irrigated. |
