Columbia subject headings:
Caves--England--Burbage Area (Derbyshire)
Erosion.
Hydrology, Karst--England--Burbage Area (Derbyshire)
Limestone.
Seepage.
Soil microbiology.
Harvard subject headings:
Calcium carbonate.
Groundwater--England--Pooles Cavern.
Karst.
Pooles Cavern.
Water--Composition
Princeton subject headings:
Calcium carbonate.
Groundwater--England--Pooles Cavern.
Karst.
Pooles Cavern.
Water--Composition.