-
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:...
- The
group contains volcanogenic conglomeratic sandstone, fine-grained
tuffite and
tuffaceous sediment. This
Precambrian volcano-sedimentary
group incorporates...
- 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...
- rock
bodies Sillar –
Variety of
rhyolite containing fragments of
andesite Tuffite – Tuff
containing both
pyroclastic and
detrital materials Ignimbrite –...
-
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...
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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...
- sandstones,
siltstones and
conglomerates with
coaly mudstone and
minor tuffite. It was
deposited in a
continental shelf setting. It is
noted for its fossil...
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Thickness 300–320 m (980–1,050 ft)
Lithology Primary Conglomerate, sandstone,
tuffite,
ignimbrite Location Coordinates 46°36′S 72°24′W / 46.6°S 72.4°W / -46...
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interbeds of
purple conglomerate,
felsitic porphyry,
quartz porphyry,
tuffite and
andesite intercalated with
rhyolitic porphyry. This
formation is dated...
