-
Norite is a
mafic intrusive igneous rock
composed largely of the calcium-rich
plagioclase labradorite, orthopyroxene, and olivine. The name
norite is derived...
- with a
metallic luster. The
mineral occurs with
mafic igneous rocks like
norites, and may form from
pyrite during metamorphic processes.
Pyrrhotite is ****ociated...
-
orthopyroxene gabbro,
while a rock
similar to
norite but
containing more
clinopyroxene is
called a
clinopyroxene norite.
Gabbros are also
sometimes classified...
- soon
after they were intruded. The
norites were
metamorphosed twice more at ~2.7 Ga and ~2.5 Ga. A wide
variety of
norite types are
found within the belt...
- are also
intermediate varieties corresponding mineralogically to
norites, quartz-
norites and diorites. A
special feature,
recurring in many
members of the...
-
impact melt
sheet composed from the base up of sub
layer norite,
mafic norite,
felsic norite,
quartz gabbro, and granophyre.[citation needed] The Whitewater...
- anthophyllite.
Cordierite also
occurs in some granites, pegmatites, and
norites in
gabbroic magmas.
Alteration products include mica, chlorite, and talc...
- forming,
different types of
magmas that
would give rise to the Mg-suite
norites and
troctolites began to form,
although the
exact depths at
which this...
-
examples of
these formations include serpentines of
Barberton Mountains,
norites of Sekhukhuneland,
quartzites of
Blyde River Canyon, and the dolomites...
-
clinopyroxene – A silica-undersaturated
plutonic rock with >90%
nepheline Norite –
igneous rockPages displaying wikidata descriptions as a
fallback – A hypersthene-bearing...
