Cross Lake Project (1983-86)
Geologist P.G. Lenton
Year 86
STATION 6189
EASTING 558768
NORTHING 6023364
ZONE 14
DATUM NAD83
Date of mapping 06/21/1986
STRUCTURAL DATA
Structure type | Strike | Dip | Separation |
---|---|---|---|
cataclastic foliation | 50 | 54 |
PETROLOGIC DATA
Rock Number: 1
-highly deformed, moderatly sheared, coarse grained augen gneiss
-mafics appear to be all BO, but with a clotted texture suggesting retrograded HB
-rock weathers grey white but there has been an extensive HM pinking often associated with an anastomosing of early pink pegmatites
-these dikes cut the foliation in the GRDR but are foliated and deformed later
-this appears to be the standard old GRDR; quartz is low (around 20%)
-it has some of the textural features of WJC, but the quartz content is too low and the feldspar are elongate and blue-grey
-there are also amphibolite and gabbro inclusions
Mineral | Abundance (%) |
---|
magnetite |
hematite |
Manitoba Geological Survey, 2017