Cross Lake Project (1983-86)
Geologist P.G. Lenton
Year 84
STATION 5458
EASTING 572098
NORTHING 6052779
ZONE 14
DATUM NAD83
Date of mapping 06/23/1984
STRUCTURAL DATA
Structure type | Strike | Dip | Separation |
---|---|---|---|
cataclastic foliation | 21 | 90 |
PETROLOGIC DATA
Rock Number: 1
-muscovite appears all secondary on shears
-whole large outcrop is coarse granite and pegmatite cut by pegmatite and contains large rafts of mafic wackes
-microcline mottled pink, white, and grey
-biotite aligned in a weak erratic foliation
-tourmaline random throughout body but is highly concentrated on the margins of dikes cutting the leuco-granite
-garnet contentrates in patches of pegmatites as crystals up to 1 cm
-secondary muscovite is lemon yellow, fibrous and restricted to shears
Mineral | Abundance (%) |
---|
tourmaline |
garnet |
biotite |
Manitoba Geological Survey, 2017