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original volcanic rock to recrystallize.
Metavolcanic rocks are
sometimes described informally as
metavolcanics. When it is
possible to
determine the original...
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Metavolcanic Mountain (86°13′S 126°15′W / 86.217°S 126.250°W / -86.217; -126.250) is a
large flat-topped mountain, 2,480
metres (8,140 ft) high, located...
- Brazil. The
rocks of the
Guiana Shield consist of
metasediments and
metavolcanics (greenstones)
overlain by sub-horizontal
layers of sandstones, quartzites...
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Blueschist ( /ˈbluːʃɪst/), also
called glaucophane schist, is a
metavolcanic rock that
forms by the
metamorphism of
basalt and
rocks with
similar composition...
- of
Archean and
Proterozoic age. Granites, gneiss,
metasediments and
metavolcanics are
common rocks while greenstone belts are
recurring features. More...
- Shimoga-Goa
Greenstone Belt in the
Western Ghats (an area
composed of
metavolcanics, iron
formations and
ferruginous quartzite),
yields evidence for Acheulean...
-
largely limited to
metavolcanic (including
porphyritic metavolcanic) and
metasedimentary (mainly quartzite) rock. The
metavolcanics are
found in the form...
- and
occur as
composite plutons intruding the
metasediments and the
metavolcanics,
while the
younger granites intrude them. Petrographically, the rocks...
- The
Temagami Greenstone Belt (TGB) is a
small 2.7 billion year old
greenstone belt in the
Temagami region of
Northeastern Ontario, Canada. It represents...
-
shield geology, the term "volcanic" is
often applied to what are
strictly metavolcanic rocks.
Volcanic rocks and
sediment that form from
magma erupted into...
