-
Tuffite is a tuff
containing both
pyroclastic and
detrital materials, but
predominantly pyroclasts.
According to the IUGS definition,
tuffite contains...
- foraminifera, pteropods,
siliceous fossils Volcanogenic constituents:
Tuffites,
volcanic ash, montmorillonite, cristobalite,
zeolites Terrigenous constituents:...
- rock
bodies Sillar –
Variety of
rhyolite containing fragments of
andesite Tuffite – Tuff
containing both
pyroclastic and
detrital materials Ignimbrite –...
- The
group contains volcanogenic conglomeratic sandstone, fine-grained
tuffite and
tuffaceous sediment. This
Precambrian volcano-sedimentary
group incorporates...
- sandstones,
siltstones and
conglomerates with
coaly mudstone and
minor tuffite. It was
deposited in a
continental shelf setting. It is
noted for its fossil...
-
million years ago. The
siltstone beds were
interbedded with
volcanic tuffite.
Tuffite is a
sedimentary rock with a
volcanic origin. It
formed by fine volcanic...
- made up
mainly of
Upper Cretaceous sandstones, marl, limestone, tuff,
tuffite and
thick andesite beds.
Along part of its
ridge p****es the main watershed...
-
Volcanic Group.
These are
overlain by the sandstones, siltstones,
tuffs and
tuffites of the Cwm
Eigiau Formation.
Within the Nant
Ffrancon sequence are a variety...
- (12 mi) northwest-southeast
Width 5 km (3.1 mi) northeast-southwest
Geography Medni Rid/Bakarlak
Country Bulgaria Geology Rock type(s) andesite,
tuffite...
-
Thickness Several hundred metres Lithology Primary Sandstone, siltstone,
tuffite Other Mudstone Location Coordinates 52°30′N 116°42′E / 52.5°N 116.7°E...
