-
richer in Na2O plus K2O
compared to SiO2.
Basanite appears early in the
alkaline magma series and
basanites are
found wherever alkaline magma is erupted...
- basaltes, a
misspelling of
Latin basanites "very hard stone",
which was
imported from
Ancient Gr**** βασανίτης (
basanites), from βάσανος (basanos, "touchstone")...
-
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...
- Pitrucha, Rac****; Sena,
Salvador (2011). "The late
Oligocene Cieneguilla basanites,
Santa Fe County:
Records of
early Rio
Grande rift magmatism" (PDF). New...
- is the most
common rock on
Mount Takahe,
phonolite being less common.
Basanite, hawaiite, and
mugearite are uncommon, but the
occurrence of benmoreite...
- 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...
- hotspots.
Their silica content can
range from
ultramafic (nephelinites,
basanites and tephrites) to
felsic (trachytes). They are more
likely to be generated...
- and is
classified as extinct. The
volcanic rocks range from
ankaramitic basanite through tephrite to
phonolite and some have ultra-pot****ic compositions...
-
calculated for the rock
based on its
chemical composition. For example,
basanite is
distinguished from
tephrite by
having a high
normative olivine content...
- the Tri****ic
rocks are
overlain and
intruded by
volcanic rock (basalts,
basanites,
phonolites and trachytes) of the Tertiary. The
eastern third of Franconia...
