- for silicification. Some
examples are
silicified limestones of
Miocene Astoria Formation in Washington,
silicified ignimbrite in El
Tatio Geyser Field in...
- such as
holes bored by
crustaceans or
molluscs and that this
becomes silicified. This
hypothesis would certainly explain the
complex shapes of
flint nodules...
-
Silica pseudomorph after gypsum crystals and
silicified serpulid polychaete tubes...
-
Silicified and
mineralized breccia.
Light gray is
mostly dolomite with a
little translucent quartz. Dark gray is
jasperoid and ore minerals.
Veinlet along...
- S2CID 233820331. Liljedahl,
Louis (January 1985). "Ecological
aspects of a
silicified bivalve fauna from the
Silurian of Gotland". Lethaia. 18 (1): 53–66. Bibcode:1985Letha...
- and
Equisetum laterale from the
Early to
Middle Jur****ic of Australia.
Silicified remains of
Equisetum thermale from the Late Jur****ic of
Argentina exhibit...
-
official state rock is
bituminous coal, and the
official state gemstone is
silicified Mississippian fossil Lithostrotionella coral. The
limestone also produced...
-
California Orbicular "ocean jasper" (not, strictly, a jasper, but a
highly silicified rhyolite or tuff)
Analalava District Madagascar,
polished slab Orbicular...
- 065.0101. Schwarzhans,
Werner W.; Jagt, John W. M. (1
November 2021). "
Silicified otoliths from the
Maastrichtian type area (Netherlands, Belgium) do****ent...
- S****n
stones are
silicified sandstone blocks found extensively across southern England on the
Salisbury Plain and the
Marlborough Downs in Wiltshire;...
