Cross Lake Project (1983-86)
Geologist P.G. Lenton
Year 86
STATION 6342
EASTING 570906
NORTHING 6050962
ZONE 14
DATUM NAD83
Date of mapping 07/10/1986
STRUCTURAL DATA
Structure type | Strike | Dip | Separation |
---|---|---|---|
schistosity | 34 | 74 |
Type | Plunge | Azimuth |
---|---|---|
ptygmatic axis | 67 | 28 |
-sudden transition across small bay to quartz rich sands
PETROLOGIC DATA
Rock Number: 1
-grey weathering sands-55 to 60 % quartz
-rare GR
-beds are 30 to 50 cm thick
-very little internal lamination, no grading visable
-no cross beds
-all MV knot layers ended
-CLCC layers still present but average 1 to 2 m thick and rare
-which point is one large antiform plunging to NE
-core of fold invaded by 6 m dike of pegmatite
Mineral | Abundance (%) |
---|
garnet |
Rock Number: 2
-pegs have also changed into BO>MV, rare TL and GR and large graphic MC
-wall foliated
Mineral | Abundance (%) |
---|
garnet |
tourmaline |
biotite |
muscovite |
Manitoba Geological Survey, 2017