-
loosely to a wide
range of
intrusive rocks, many of
which are
merely "
gabbroic". By
rough analogy,
gabbro is to
basalt as
granite is to rhyolite. The...
- rhyolite-dominated lava of
Niijima volcano (****an)
contains two
types of
gabbroic xenoliths which are of
different origin - they were
formed in different...
- Nonetheless, the area has
received regular attention.
Bacteria in the
gabbroic layer of the ocean's
crust can
degrade hydrocarbons; but the
extreme environment...
- maars.
According to
field mapping, aeromagnetic, and
gravimetric data, the
gabbroic rocks form two
concentric ring ****s. The
inner ring **** is
about 30 metres...
-
McGinty Mountain is a
gabbroic mountain located in San
Diego County,
California near Jamul.
Because of the
gabbroic soil, the
mountain supports numerous...
- the
Cambrian Period produced the
granites and
rhyolites (the red rocks),
gabbroic rocks, anorthosites, and
diabases (the
black rocks).
Subsidence resulted...
- anthophyllite.
Cordierite also
occurs in some granites, pegmatites, and
norites in
gabbroic magmas.
Alteration products include mica, chlorite, and talc. Cordierite...
-
megamullion lithology yielded mostly peridotite,
gabbroic rocks,
leucocratic rocks, and basalt. The
gabbroic rocks and
peridotite are
present throughout the...
- from the same
gabbroic clay from St. Keverne. Most of the
paleolithic pottery from
around Cornwall has been
found to be made of
gabbroic clay, such as...
-
typically contain zirconium, titanium, and rare
earth element minerals.
Gabbroic pegmatites typically consist of
exceptionally co****
interlocking pyroxene...
