-
Komatiite /koʊˈmɑːtiˌaɪt/ is a type of
ultramafic mantle-derived
volcanic rock
defined as
having crystallised from a lava of at
least 18 wt% magnesium...
-
Widgiemooltha Komatiite is a
formation of
komatiite in the
Yilgarn Craton of
Western Australia. The
stratigraphy of the
Widgiemooltha Komatiite is well known...
-
komatiite magma and a
solid residue very
close in
composition to
Archean lithospheric mantle, but
continental shields do not
contain enough komatiite...
- entrail-type
pahoehoe lavas on land.
Ultramafic magmas, such as
picritic basalt,
komatiite, and
highly magnesian magmas that form boninite, take the composition...
- tectonics, and
allowing the
production of
uncommon igneous rocks such as
komatiites that are
rarely formed today. The mean heat loss from
Earth is 87 mW m−2...
-
similar to entrail-type
pahoehoe lavas on land.
Ultramafic lavas, such as
komatiite and
highly magnesian magmas that form boninite, take the
composition and...
-
rocks elsewhere in the
solar system.
Examples include komatiite and
picritic basalt.
Komatiites can be host to ore
deposits of nickel.
Ultramafic tuff...
- The
Winnipegosis komatiite belt is a 150 km (93 mi) long and 30 km (19 mi) wide
greenstone belt
located in the Lake
Winnipegosis area of
central Manitoba...
- as
spinifexes Spinifex, a
texture in
certain ultramafic lavas such as
komatiite Spinifex people, an
Aboriginal Australian people,
inhabitants of the Spinifex...
- + K2O (up to 3% by weight). They
include picrite,
komatiite and meimechite.
Picrites and
komatiites are
somewhat similar chemically (defined as >18% MgO)...
