-
phonolite and
tephritePages displaying wikidata descriptions as a
fallback – A
volcanic rock with a
composition between phonolite and
tephrite Picrite – Variety...
-
places basanite in the basanite/
tephrite field of the QAPF diagram.
Basanite is
further distinguished from
tephrite by
having a
normative olivine content...
- and
tephrites but less than
basaltic andesite.
Basalt has a
lower total content of
alkali oxides than
trachybasalt and most
basanites and
tephrites. Basalt...
- as extinct. The
volcanic rocks range from
ankaramitic basanite through tephrite to
phonolite and some have ultra-pot****ic compositions,
which is unusual...
-
rebuilt and open for
travelers now. Pico do Fogo
consists of basanite,
tephrite, phonotephrite, clinopyroxene, amphibole, magnetite, olivine, melilite...
- researches. They
succeeded in
producing such
rocks as porphyrite, leucite-
tephrite,
basalt and dolerite, and
obtained also
various structural modifications...
-
firstly erupted,
followed by a
tephritic phonolite and
finally a
phonolitic tephrite).
According to the
Smithsonian Institution's
Global Volcanism Program,...
-
Canary Islands. Ecuador:
Phenocrysts found in
alkaline extrusive rocks (
tephrite),
product of
effusive volcanism of the
Sumaco volcano, of
northeast Ecuador...
-
Hawaiian Islands, as well as the
foidite lavas of
Mount Nyiragongo and the
tephrite lavas of Nyamuragira. It is
possible that the lava
erupted from
Tseax Cone...
-
Gusev plains rocks lie near the
junction of basalt, picrobasalt, and
tephrite. The Irvine-Barager
classification calls them basalts. Plain's
rocks have...
