-
Ultramafic rocks (also
referred to as
ultrabasic rocks,
although the
terms are not
wholly equivalent) are
igneous and meta-igneous
rocks with a very low...
- Lherzolite – an
ultramafic and
ultrabasic rock that is
composed of
olivine and
pyroxenePages displaying wikidata descriptions as a
fallback – An
ultramafic rock...
- analcite, prehnite, natrolite, scolecite, chabazite, heulandite, etc.
Ultramafic tuffs are
extremely rare;
their characteristic is the
abundance of olivine...
- ****ociations are noted: high-alumina basalts, ultrapot****ic
igneous rocks, and
ultramafic rocks. The
basaltic occurrence of
phlogopite is in ****ociation with picrite...
- melt. Ideally, the
stratigraphic sequence of an
ultramafic-mafic
intrusive complex consists of
ultramafic peridotites and
pyroxenites with ****ociated chromitite...
-
metamorphic mineral derived from
ultramafic rocks along with serpentinite.
Anthophyllite is
formed by the
breakdown of talc in
ultramafic rocks in the
presence of...
-
chemical types based on
silica content: felsic, intermediate, mafic, and
ultramafic.
Felsic or
silicic lavas have a
silica content greater than 63%. They...
-
compositions found in
metamorphosed ultramafic rocks. The term
refers to the two most
common end-member
minerals found within ultramafic rocks which have undergone...
- and
small intrusions. They are
alkaline silica-undersaturated
mafic or
ultramafic rocks with high
magnesium oxide, >3% pot****ium oxide, high
sodium oxide...
- Geraniaceae,
native to the
South Island of New Zealand,
where it is
found on
ultramafic rock outcrops. It was
first described in 2017 by
Peter Heenan and Shannel...
