-
Silcrete is an
indurated (resists
crumbling or powdering) soil
duricrust formed when
surface soil, sand, and
gravel are
cemented by
dissolved silica. The...
- used
regularly and
systematically by
early modern humans to heat
treat silcrete stone to
increase its flake-ability for the
purpose of
toolmaking approximately...
-
during the
final shaping of
Still Bay
bifacial points made on heat‐treated
silcrete." Both
pressure flaking and heat
treatment of
materials were previously...
- hard,
brittle stones, rich in silica, such as quartzite, chert, flint,
silcrete and
quartz (the
latter particularly in the
Kimberleys of
Western Australia)...
- Hampshire. S****n
stones are the post-glacial
remains of a cap of
Cenozoic silcrete that once
covered much of
southern England. This is
thought to have formed...
-
combination of
carbonized roots and rootlets, rhizoliths,
illuvial clay cutans,
silcrete-like
silica cements, and the
leaching and
alteration of the
sandy sediments...
-
dominant raw
material used for
Still Bay
point production in
Blombos Cave is
silcrete (72%),
followed by
quartzite (15%) and
quartz (13%).
Whereas the quartzite...
-
caprock of
various tablelands. In case of duricrusts, e.g.
laterite or
silcrete, the
formation of
tablelands involves a three-stage process. First, the...
- of groundwater,
precipitated as the
ambient conditions changed,
forming silcrete (a type of duricrust), with the
silica forming a
secondary cement binding...
- of
these sediments.
Although it is
hypothesized that it is
groundwater silcrete, its
origin remains unresolved. The
Schunemunk puddingstone is a conglomerate...
