- Dunedin, New
Zealand Teide, a
stratovolcano on the
island of
Tenerife The
phonolitic lava lake in
Mount Erebus, Ross Island,
Antarctica The 'Bellstone' in...
-
basaltic oceanic island volcanoes, with
explosive polygenetic phonolitic calderas, and
phonolitic-basaltic stratovolcanoes". Earth-Science Reviews. 230 103990...
-
present within the rock. The
volcanic equivalents are
termed foidite and
phonolitic or
tephritic foidites. Some
foidolites are a
potential source of aluminium...
- was
firstly erupted,
followed by a
tephritic phonolite and
finally a
phonolitic tephrite).
According to the
Smithsonian Institution's
Global Volcanism...
- no large-scale
explosive activity. Two
cones formed subsequently, the
phonolitic one at the
northwest end of the
ridge and the
doleritic Platzkegel in...
-
piercing the m****if, its
surface exposes numerous outcroppings of both
phonolitic and
trachytic origin. A
large number of steep-walled
gorges are present...
- with
McDonald Island) and
Meyer Rock. The
islands are
mostly composed of
phonolitic low-silica pumice, ****s and lava domes, and sit atop a
submarine plateau...
-
volcanic processes that took
place around 50 BC, in
three phases. Initially,
phonolitic lava with a
volume of
about 0.022 km3
emerged from a west-northwest-east-southeast...
- basalts, but
ended with
violent eruptions of
pyroclastic flows. Some
phonolitic features, like the
Risco Blanco, were also
formed in its last stages....
- East
African Rift system's
eastern branch. It is made up of
interlayered phonolitic tuffs, tuff
breccias (containing
nephelinite blocks), and nephelinitic...
