-
original volcanic rock to recrystallize.
Metavolcanic rocks are
sometimes described informally as
metavolcanics. When it is
possible to
determine the original...
- Brazil. The
rocks of the
Guiana Shield consist of
metasediments and
metavolcanics (greenstones)
overlain by sub-horizontal
layers of sandstones, quartzites...
-
shield geology, the term "volcanic" is
often applied to what are
strictly metavolcanic rocks.
Volcanic rocks and
sediment that form from
magma erupted into...
- 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...
- of
Archean and
Proterozoic age. Granites, gneiss,
metasediments and
metavolcanics are
common rocks while greenstone belts are
recurring features. More...
- The
soils of the Sa'isi Tsa'ida Imba
woreda (district) in
Tigray (Ethiopia)
reflect its
longstanding agricultural history,
highly seasonal rainfall regime...
- Shimoga-Goa
Greenstone Belt in the
Western Ghats (an area
composed of
metavolcanics, iron
formations and
ferruginous quartzite),
yields evidence for Acheulean...
- and very old materials.
Common rock
types are orthogneiss, granite,
metavolcanics and
metasedimentary rocks. On top of
these lies a
widespread thin layer...
-
Blueschist ( /ˈbluːʃɪst/), also
called glaucophane schist, is a
metavolcanic rock that
forms by the
metamorphism of
basalt and
rocks with
similar composition...
- rock that is
mostly reddish metamorphic rock,
which was
composed by
metavolcanics of
surfacing magma from the
Mesozoic Era.
Mount Dana's
northern face...
