-
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...
-
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...
- Anthracite – Hard,
compact variety of coal Amphibolite –
Metamorphic rock type
Blueschist – Type of
metavolcanic rock Cataclasite – Rock
found at
geological faults...
- The
blueschist metamorphic facies gets its name from
abundant blue
minerals glaucophane and lawsonite.
Glaucophane generally forms in
blueschist metamorphic...
-
crust was
prone to
metamorphose into
greenschist instead of
blueschist at
ordinary blueschist facies.
Oceanic crust is
continuously being created at mid-ocean...
- with
albite in
metamorphic rock of the low-temperature, high-pressure
blueschist facies at
destructive plate margins.
Although it is
intermediate in silica...
- the
absence of arc volcanism. They are
typified by the
occurrence of
blueschist to
eclogite facies metamorphic zones,
indicating high-P/low-T metamorphism...
