-
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...
-
silica during early diagenesis. Elsewhere, b****ite has been
compared to
silcrete,
indicating a
break in sedimentation,
where it
occurs as encrustations...
- 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...
-
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)...
-
sesquioxides of iron;
alcrete (bauxite) is
dominated by
sesquioxides of aluminum;
silcrete by silica;
calcrete (caliche) by
calcium carbonate, and
gypcrete (gypcrust)...
- Renosterveld –
Vegetation type
endemic to the
Western Cape,
South Africa Swartland Silcrete Renosterveld The
World Wide Fund for
Nature divides the Cape floristic...
-
caprock of
various tablelands. In case of duricrusts, e.g.
laterite or
silcrete, the
formation of
tablelands involves a
three stage process. First, the...
