Page 345 - Laboratory Manual in Physical Geology

A. EARLY STAGE OF
KARST DEVELOPMENT
Large lakes

Springs

Streams common

Small
caves
filled with
water
Water table near
land surface

Small lakes
Sinkholes

Few streams

Large caves A
filled with
water in basal
portions

B. MID-STAGE OF Thin cave roofs
KARST DEVELOPMENT

Disappearing streams
Solution valleys

Sinkholes

Very
large
caves only B
partly filled C
with water

C. LATE (ADVANCED) STAGE OF
KARST DEVELOPMENT
Water table well
below land surface
Thin cave roofs

FIGURE 12.2 Stages in the evolution of karst topography. Karst topography is the result of dissolution of soluble bedrock (usually

limestone).
Groundwater Processes, Resources, and Risks ■ 315