-
Duricrust is a hard
layer on or near the
surface of soil.
Duricrusts can
range in
thickness from a few
millimeters or
centimeters to
several meters. It...
-
consisting of
around 95%
gypsum (calcium sulfate).
Gypcrust is an arid zone
duricrust. It can also
occur in a
semiarid climate in a
basin with
internal drainage...
- of tablelands. Flat-lying
duricrusts and
volcanic rocks also form the
caprock of
various tablelands. In case of
duricrusts, e.g.
laterite or silcrete...
- flat summit. The
caprock may also
include dissected lava
flows or
eroded duricrust.
Unlike a plateau,
which is a broader,
elevated region that may not have...
- rock,
usually conglomerate or breccia, that has been
cemented into a
duricrust by iron oxides. The iron
oxide cements are
derived from the oxidation...
-
Silcrete is an
indurated (resists
crumbling or powdering) soil
duricrust formed when
surface soil, sand, and
gravel are
cemented by
dissolved silica....
- Free State,
South Africa An
inselberg in the
rainforest of
Suriname A
duricrust inselberg near Dori,
Burkina Faso Uluru, an 863-metre (2,831 ft) sandstone...
-
adapted to the soils.
Often thick, magnesite-calcrete caprock,
laterite and
duricrust forms over
ultramafic rocks in
tropical and
subtropical environments....
-
duricrust A
general term for hard
crust existing as a
layer in or on the
surface of the
upper horizons of a soil in semi-arid climates.
Duricrust is...
- sulfate/silica
materials were
found in bright-toned rocks. The
minerals formed a "
duricrust." It was made
either by
groundwater rising or
subsurface ice melting....
