Cross Lake Project (1983-86)
Geologist P.G. Lenton
Year 84
STATION 5413
EASTING 574947
NORTHING 6059577
ZONE 14
DATUM NAD83
Date of mapping 06/15/1984
STRUCTURAL DATA
Layering type | Strike | Dip | top Direction |
---|---|---|---|
bedding | 215 | 83 | S |
Structure type | Strike | Dip | Separation |
---|---|---|---|
schistosity | 315 | 83 |
-photos of cross beds and conglomerate
PETROLOGIC DATA
Rock Number: 1
-normal looking sequence of trough crossbedded sands and channel conglomerates that occurs along this north shore
-nothing unusual; bedding well defined and parallel schistocity
-a few small faults generally parallel bedding/foliation but occasionally wander off at low angles
Rock Number: 2
-2 parallel dikes, one 2.5 m decreasing to 35 cm at NW end of outcrop
-no beryl visible, just muscovite, 2 feldspar, quartz, garnet, tourmaline
-second dike has albitic aplite core-varies from 30 to 80 cm, tourmalinized margins, blue apatite, pale green beryl
-in one spot in transected by low angle fault
-in general is constrained to the foliation plane
Mineral | Abundance (%) |
---|
beryl |
tourmaline |
muscovite |
Manitoba Geological Survey, 2017