-
Boninite is an
extrusive rock high in both
magnesium and silica,
thought to be
usually formed in fore-arc environments,
typically during the
early stages...
- of
basaltic composition,
although pillows formed of komatiite, picrite,
boninite,
basaltic andesite, andesite,
dacite or even
rhyolite are known. In general...
- Basanite – Type of
volcanic rock Blairmorite – Rare
porphyritic volcanic rock
Boninite –
Ultramafic extrusive rock high in both
magnesium and
silica Carbonatite –...
- group, the main
composition of
eruptions in the
Matas consists of
mostly boninite,
which is a type of
extrusive rock
usually seen in the Izu-Bonin Island...
- such as
picritic basalt, komatiite, and
highly magnesian magmas that form
boninite, take the
composition and
temperatures to the extreme. All have a silica...
-
series and are
characteristic of
volcanic arcs
above subduction zones.
Boninite is a high-magnesium form of
basalt that is
erupted generally in back-arc...
-
Ultramafic lavas, such as
komatiite and
highly magnesian magmas that form
boninite, take the
composition and
temperatures of
eruptions to the extreme. All...
-
boninite-like
amphibolites have been
interpreted to
represent metamorphosed boninites. However,
subsequent studies have
pointed out that the
boninite-like...
- in titanium, with more than 8% MgO and less than 0.5% TiO2, is
termed a
boninite.
Basaltic andesite is
found in
volcanic arcs, such as
those of Central...
-
adakites are
distinct from
another variety of high-Mg
andesite called boninite;
boninites have
major element concentrations similar to sanukitoids, but they...
