Karst topography is a landscape shaped primarily by the dissolving action of water on soluble bedrock, such as limestone, dolomite, and gypsum. This dissolution process creates unique surface and subsurface features.
Glacial topography is formed by the erosional and depositional forces of glaciers. As glaciers move, they carve out valleys, transport sediment, and leave behind distinctive landforms.
| Feature | Karst Topography | Glacial Topography |
|---|---|---|
| Dominant Process | Chemical weathering (dissolution) | Physical weathering (erosion and deposition by ice) |
| Bedrock Type | Soluble rocks (limestone, dolomite, gypsum) | Any rock type, but particularly evident in areas with resistant rocks |
| Typical Landforms | Sinkholes, caves, disappearing streams, karst springs, solution valleys | U-shaped valleys, cirques, aretes, moraines, eskers, glacial erratics |
| Water's Role | Water acts as a solvent, dissolving the bedrock. | Water (as ice) acts as an agent of erosion and transportation. |
| Drainage Patterns | Often characterized by underground drainage systems. | Well-defined surface drainage patterns in formerly glaciated areas. |
| Soil Type | Often thin and rocky due to rapid drainage. | Can vary widely, including till (unsorted glacial sediment) and outwash plains. |
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