-
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...
- of tablelands. Flat-lying
duricrusts and
volcanic rocks also form the
caprock of
various tablelands. In case of
duricrusts, e.g.
laterite or silcrete...
- as
sandstone and limestone;
dissected lava flows; or a
deeply eroded duricrust.
Unlike plateau,
whose usage does not
imply horizontal layers of bedrock...
-
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...
- 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....
- ash and lava
flows that are
interbedded with
unconsolidated material duricrust,
formed by
cementation of soils,
saprolith and
transported material like...
-
adapted to the soils.
Often thick, magnesite-calcrete caprock,
laterite and
duricrust forms over
ultramafic rocks in
tropical and
subtropical environments....
- 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....
-
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...
