-
sometimes present, is
never abundant, and
nepheline also is unusual. In some
limburgites large phenocrysts of dark
brown hornblende and
biotite are found, mostly...
-
rocks often contain a
small amount of gl****y ground-m****, and in the
limburgites this
becomes more
important and con****uous, but
vitreous types are far...
-
rocks at the
surface are leucite-tephrites, with
subordinate phonolites,
limburgites, and olivine-nephelinites (at the
Limberg Mountain near Sasbach), the...
-
often comes 3 to 5
million years after the main shield-building phase.
Limburgite – type of
volcanic rockPages displaying wikidata descriptions as a fallback...
- of Špičák
olivine alkaline basalts and basanites,
olivine foidites,
limburgites,
melitic olivine-bearing rocks,
subvolcanic basaltic breccias and altered...
-
southern coast,
Vilkitsky Island is
composed of
limburgite, a
dense dark gray
volcanic rock. The
limburgite is
represent by
varieties with both crystalline...
-
chemical replacement. Most
volcanic rocks are
basic and
include andesite and
limburgite. Trueman, N. A. (1965). "The phosphate,
volcanic and
carbonate rocks of...
- Augitite, pot****ic
limburgite,
pyroxene trachybasalts and trachyte-andesite are
found in the
Pliocene layers. Pot****ic
basanite and
limburgite are
found in...
- and sandstone. The
rocks are
classified as
either feldspar basalt or
limburgite (gl**** basalt),
containing augite, olivine, and
minor magnetite and ferrite...
- gabbro-norite ****s, tuff, sand and
gravel (sediments in the Zuru beds),
limburgite and
basaltic picrate are
particularly common. The
Valdai Group holds extensive...
