Cross Lake Project (1983-86)
Geologist P.G. Lenton
Year 86
STATION 6394
EASTING 563695
NORTHING 6047576
ZONE 14
DATUM NAD83
Date of mapping 07/19/1986
STRUCTURAL DATA
Structure type | Strike | Dip | Separation |
---|---|---|---|
schistosity | 39 | 38 |
PETROLOGIC DATA
Rock Number: 1
-very unusual rock, comprising of interlayered psammitic textured GR-BO gneiss and white garnet - quartz- plagioclase gneiss
-no indication of original rock although exposure is very poor
-SC is very pronounced with a platy cleavage
-locally red GR represents 20 to 25% of the rock
-it appears that this has gone thru extensive alkali stripping
-BO GNSS also contains trace of fibrous amphibole (this should be checked in TS to see if there is an anthophyllite assemble)
-in general, in appearance the rock has a higher meta. grade than anticipated for this area, probably upper amphibolite
Manitoba Geological Survey, 2017