-
Ankaramite is
volcanic rock type of
mafic composition. It is a dark
porphyritic variety of
basanite containing abundant pyroxene and
olivine phenocrysts...
-
Alkali feldspar granite – Type of
igneous rock rich in
alkali feldspar Ankaramite – Type of
volcanic rock -
Igneous rock
belonging to
basalt family Anorthosite –...
- volcano,
Rinjani is
composed of a
diverse range of lavas.
These include:
ankaramite, high-Al basalt, andesite, high-K
andesite and dacite. Sr-isotopic and...
- 150,000 and 200,000
years ago and
erupted picrobasalts, trachybasalts,
ankaramites, and basanites. They
reach as far as Lake
Chala and
Taveta in the southeast...
-
adjacent mainland parts of Mumbai,
which is
dated to 62.5
million years ago.
Ankaramite rock
found on the
island is
significantly younger (potentially as much...
- 000
alkali basalt with
minor amounts of
picritic basalt,
hawaiite and
ankaramite 15 185
mostly southern flank and
summit Spatter deposits, extensively...
-
namely ankaramites,
alkali basalts, trachybasalts, mugearites, hawaiites, phonolites,
trachytes and rhyolites.
Alkali basalts and
ankaramites are the...
-
primitive mafic alkaline magma,
either an
alkalic picrite basalt or an
ankaramite. This
evolves to an
alkali olivine basalt or basanite.
Thereafter the...
-
during the
initial eruptive phase. Most of the
volcano is
composed of
ankaramite basalt, a rare type of lava with
megacrysts of
clinopyroxene that is also...
-
deposit Manueline Dakar was
discovered in 1940.
Basalt rocks including ankaramite were used for
making microlithic tools such as axes or planes. Such tools...
