The metamorphic basement and/or Glenkeen Formation are everywhere separated from the Carboniferous conglomerate-dominated sedimentary successions by faults, marked by chloritic
breccia and microbreccia developed within both metamorphic basement and Glenkeen Formation.
A feature common to many samples of the MFU and less common in the LFU and UFU is the presence of a fine-grained chloritic
phase lining vesicles.
alteration of the subvolcanic dacitic intrusives.
Beginning at 67 meters depth, and continuing to 158 meters, the hole intersected mineralization with typical chloritic
quartz veining, the interval containing a visual estimate of 1.
PLS13-055 intersected three radioactive intervals within sheared, graphitic, chloritic
, sulfide-bearing metapelitic gneiss, including two discrete narrow intervals of off-scale radioactivity.
clay, a product of low-temperature retrograde metamorphism and possibly also of corrosive meteoric water, occurs in many pockets as milky green to dark green, fine-grained inclusions imparting a greenish color to quartz.
85 meter intercept with an average of 40% pyrite in a black chloritic
altered felsic tuff, thus explaining the geophysical anomaly.
The chemical composition corresponds to the distinction between dominantly talcose and dominantly chloritic
ore, and to the amount of barren inclusions (unaltered rock: residual dolomite, pegmatite and mica schist).
Another scepter quartz, this one from Winterstock, Furka, Switzerland, sits on a chloritic
matrix about 10 X 10 cm; the quartz crystal measures 3 X 10 cm and has a pale purple amethystine head.
The local series is composed of the metamorphic rocks, mostly sericite-phyllites, chloritic
and amphibolitic schists.
alteration is very strong from 300 to 325 m's.
The early "feldspar-quartz-mica phase" of Thoreau (1928) cropped out as a chloritic
breccia and enlarged the network of fissures in the Kakontwe.