-
accessory minerals. Feldspathoid-bearing
latite is
sometimes referred to as
tristanite.
Rhomb porphyries are an
unusual variety with gray-white
porphyritic rhomb...
-
evolves through trachybasalt or
leucite trachybasalt through tristanite or
leucite tristanite to pot****ic
trachyte or
leucite phonolite. The nephelinic,...
- of alkali-basalt
cinder cones and lava
flows with
minor trachyte and
tristanite; the
trachyte stratovolcano of Furnas; and the
Nordeste shield, which...
-
Volcanic rocks such as
alkali basalt, hawaiite, trachybasalt, benmoreite,
tristanite, mugearite, trachyte,
comendite and
pantellerite were
deposited by multiple...
-
rhyolite and
trachyte domes.
Basalt flows and
smaller amounts of trachyte,
tristanite, trachybasalt,
benmoreite and
mugearite produced during the
second stage...
- Ice Peak Formation. They
consist of trachyte, benmoreite, mugearite,
tristanite,
trachybasalt and
alkali basalt that are in the form of lava flows, lava...
- Ice Peak Formation. They
consist of trachyte, benmoreite, mugearite,
tristanite,
trachybasalt and
alkali basalt that are in the form of lava flows, lava...
-
called latite. Feldspathoid-bearing
latite is
sometimes referred to as
tristanite.
Basaltic trachyandesite is
transitional to
basalt and
likewise comes...
-
intermediate composition such as benmoreite, trachybasalt,
mugearite and
tristanite are
present in
relatively small volumes and are the
result of
alkali basaltic...
-
slightest intention of
going back to
Tristan da Cunha. The
intellect of the
Tristanites is now so
dwarfed by
reason of
their utter isolation that I do not think...
