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Basanite (/ˈbæs.əˌnaɪt/) is an igneous,
volcanic (extrusive) rock with
aphanitic to
porphyritic texture. It is
composed mostly of feldspathoids, pyroxenes...
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border with Kazakhstan, is
noted for its colossal, open-cast
copper mine.)
Basanite is a deep velvety-black
variety of
amorphous quartz, of a
slightly tougher...
- The
absence of
olivine distinguishes them from the
otherwise similar basanite. It's
parameters are
defined in the QAPF diagram.
Occurrences include leucite...
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increasingly alkaline in composition, and
include the 25-26 Ma
Cieneguilla basanite. This is a small-volume
extrusive unit
exposed around the
village of La...
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Small volcanic bomb of (black)
basanite with (green) dunite...
- 000
years ago and
erupted picrobasalts, trachybasalts, ankaramites, and
basanites. They
reach as far as Lake
Chala and
Taveta in the
southeast and the Lengurumani...
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clinopyroxene (augite) and
calcic plagioclase. Basalt,
alkali basalt,
basanite,
tephritic nephelinite, and
nephelinite differ partly in the
relative proportions...
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undifferentiated and
nonviscous basanite lavas that form the low
broad platform shield of Erebus.
Slightly younger basanite and
phonotephrite lavas crop...
- and may
contain also biotite, quartz, and orthoclase.
Andesite Basalt Basanite Dacite Felsite Phonolite Rhyolite Trachyte Le Maitre, R. W., ed. (1989)...
- and is
classified as extinct. The
volcanic rocks range from
ankaramitic basanite through tephrite to
phonolite and some have ultra-pot****ic compositions...
