Environmental Engineering Reference
In-Depth Information
FIGURE 6.18
Topographic expression of a batholith in a glaciated area (Elizabethtown quadrangle, Adirondack Mountains,
New York). (Courtesy of USGS.)
hills. Rounded depressions and sinkholes are common and there are few or no permanent
streams. Intermittent streams disappear suddenly into the ground. Drainage is termed
deranged or intermittent.
Terrain features developing in the relatively cool, moist climate of Kentucky are shown
in
Figure 6.25.
Numerous depressions, sinkholes, and suddenly terminating intermittent
streams are apparent. (This is the area where the photo in
Figure 6.22
was taken.)
Terrain features developing in the warm, moist climate of Puerto Rico are shown in
Figure 6.26.
Sinks, depressions, and the lack of surface drainage are evident, but the major
features are the numerous “dome-shaped” hills (“haystacks”). The landform is referred to
as tropical karst.
The numerous lakes of central Florida, illustrated in
Figure 6.27,
an ERTS image mosaic,
are formed in sinks that developed in an emerged land mass.
