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Lamprophyres (from
Ancient Gr**** λαμπρός (lamprós) 'bright' and φύρω (phúrō) 'to mix') are uncommon, small-volume ultrapot****ic
igneous rocks primarily...
- ****s or
sills consist either of phonolite, tinguaite,
lamprophyre micromalignite,
lamprophyre micromelteigite, or carbonatite. The
Beemerville Alkaline...
- rock Lamproite –
Mantle rock
expulsed to the
surface in
volcanic pipes Lamprophyre – Type of ultrapot****ic
igneous rock – An ultramafic, ultrapot****ic intrusive...
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northern apophysis, the
lamprophyres and the dark inclusions. The clear-cut
distinction of the
microgranites and the
lamprophyres from the
other facies...
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volcanic rocks ****ociated with this rise are
tholeiitic lavas and
intrusive lamprophyre sheets,
which form a
volcanic ba****t, on average, 50 m (160 ft) below...
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considered "ultramafic". Ultrapot****ic,
ultramafic igneous rocks such as
lamprophyre,
lamproite and
kimberlite are
known to have
reached the
surface of the...
-
otherwise inaccessible mantle. Basalts, kimberlites,
lamproites and
lamprophyres,
which have
their source in the
upper mantle,
often contain fragments...
- orthogneisses. On the west face of
Broad Peak and the
south spur of K2,
lamprophyre ****s,
which consist of
clinopyroxene and biotite-porphyritic vogesites...
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microdiamonds in the
island arc of ****an are
found in a type of rock
called lamprophyre.
Kimberlites can be
found in
narrow (1 to 4 meters) ****s and sills,...
-
occurrences are as m****es
adjacent to
ultramafic intrusives, ****ociated with
lamprophyre ****s and as
large crystals in pegmatites. It
commonly occurs as a detrital...
