- The
chlorites are the
group of
phyllosilicate minerals common in low-grade
metamorphic rocks and in
altered igneous rocks. Greenschist,
formed by metamorphism...
- to 2.3 cm set atop
matrix from the West Bor Pit at Dalnegorsk,
Russia Chloritized bladed crystals of
axinite forming on
adularia from the
Swiss Alps Tinzenite...
-
mafic rocks. In uralitization,
secondary hornblende replaces augite;
chloritization is the
alteration of
augite (biotite or hornblende) to chlorite, and...
-
group minerals.
Chloritization is the
alteration of
pyroxene or
amphibole minerals into the
chlorite group minerals.
Chloritization is a
common process...
-
marine 275 m (900 ft)
Purcell Lava dark
green and
reddish green to
purple chloritized mafic lava flows,
pillow basalts,
gabbroic sills and ****s; amygdules...
-
polymetallic ores are
often altered or
formed by
hydrothermal processes —
chloritization,
sericitization and silicification.
These deposits are
often iron hydroxides...
- are found.
Plant stems are
similarly rare, and most
commonly occur as
chloritized fragments floating in the pink lower, more m****ive
mudstone succession...
- albite,
granular clinozoisite and mica lamellae. The
biotite is
often chloritized. The
shear sense has not been determined, but most
likely is right-lateral...
-
millimeter grain size, br**** coloured, with
zircon inclusions and
often chloritized − 10
volume percent Accessories are
zoned allanite, apatite, epidote...
- 1.8
billion years ago.
Brittle deformation,
granite emplacement and
chloritization occurred in the
formation 900
million years ago.
Extremely ancient trace...
