-
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...
-
Canary Islands. Ecuador:
Phenocrysts found in
alkaline extrusive rocks (
tephrite),
product of
effusive volcanism of the
Sumaco volcano, of
northeast Ecuador...
- researches. They
succeeded in
producing such
rocks as porphyrite, leucite-
tephrite,
basalt and dolerite, and
obtained also
various structural modifications...
- as extinct. The
volcanic rocks range from
ankaramitic basanite through tephrite to
phonolite and some have ultra-pot****ic compositions,
which is unusual...
- (84 cu mi),
additional volcanic rocks are
basaltic andesite,
hawaiite and
tephrite.
Basaltic rocks range from
alkali basalt to tholeiite. Pot****ium-argon...
-
rebuilt and open for
travelers now. Pico do Fogo
consists of basanite,
tephrite, phonotephrite, clinopyroxene, amphibole, magnetite, olivine, melilite...
-
phase II (200-150 ka), more
volcanic craters and
fissures formed with
tephrites; in
phase III (150-100 ka), the
eastern crater Lesser Tendürek
began to...
-
Gusev plains rocks lie near the
junction of basalt, picrobasalt, and
tephrite. The Irvine-Barager
classification calls them basalts. Plain's
rocks have...
- basalts, basanites, phonolites, trachytes, nephelinites, trachyandesites,
tephrites and rhyolites.
There are lava
flows as well as
deposits of pyroclastic...
