-
Blueschist ( /ˈbluːʃɪst/), also
called glaucophane schist, is a
metavolcanic rock that
forms by the
metamorphism of
basalt and
rocks with
similar composition...
- than
blueschist,
which drives further subduction of the slab deep into the Earth's mantle.
Metabasalt and
blueschist may be
preserved in
blueschist metamorphic...
-
pressure metamorphic path
through the zeolite, prehnite-pumpellyite,
blueschist, and
eclogite facies stability zones of
subducted oceanic crust. Zeolite...
- Anthracite – Hard,
compact variety of coal Amphibolite –
Metamorphic rock type
Blueschist – Type of
metavolcanic rock Cataclasite – Rock
found at
geological faults...
-
orthopyroxene + K-feldspar +
quartz ±
osumilite (at very high temperature) The
blueschist facies is at
relatively low
temperature but high pressure, such as occurs...
-
supercontinents at
about 1.9–2.0 Ga.
Blueschist is a rock
typical for present-day
subduction settings. The
absence of
blueschist older than
Neoproterozoic reflects...
- dioxide3 CO2 Talc can also be
formed from
magnesium chlorite and
quartz in
blueschist and
eclogite metamorphism by the
following metamorphic reaction: chlorite...
- The
blueschist metamorphic facies gets its name from
abundant blue
minerals glaucophane and lawsonite.
Glaucophane generally forms in
blueschist metamorphic...
- 800
million years ago
based on the late
appearance of rock
types like
blueschist which require cold
subducted material.
Other authors have
suggested that...
- in
regionally metamorphosed schists, gneisses, and iron formations; in
blueschist facies rocks, and from
sodium metasomatism in granulites. It may occur...
