1. Karst Landforms Caves, sinkholes and other soluble rock features
Form in extensive, thick deposits of limestone
Limestone 80%+ calcium carbonate – dissolves easily through carbonation

2. Caves and Caverns
Caves – underground voids in rock big enough for people to enter
Cavern – large cave system
Form just below water table in limestone – when
water table falls, empty caverns are exposed

3. Karst Topography - Sinkholes
Most common surface feature of karst is sinkhole
Sinkhole – depression in regions of cavernous limestone – forms from collapse of cave
Often found with disappearing streams that enter underground channels
Some sinkholes fill with water, forming ponds
Sinkholes can be hazards, collapsing under homes or roads

4. Sinkhole Landscape