Cross Lake Project (1983-86)
Geologist P.G. Lenton
Year 85
STATION 6007
EASTING 575977
NORTHING 6045283
ZONE 14
DATUM NAD83
Date of mapping 06/07/1985
STRUCTURAL DATA
Structure type | Strike | Dip | Separation |
---|---|---|---|
schistosity | 285 | 36 |
Type | Plunge | Azimuth |
---|---|---|
rodding | 31 | 102 |
-contact zone between Metis Complex and CWB complex
-the two granitic series are separated by 110 M of "buggered" ampb.
PETROLOGIC DATA
Rock Number: 1
-Black, massive, HB-BO ampb.
-contains 30% injected tonalite and pegmatite
-was probably basaltic but all primary features obliterated
Rock Number: 2
-feldspar rich; probably sedimentary gneiss
-up to 50-60 % injected material
-weathers beige to grey with irregular fabric
-was probably a dirty sandstone with ampb layering
Rock Number: 3
-beige to pink weathering GRDR that occurs as extensive vein and sill networks.
-sills up to 2 m thick become randomly pegmatitic
-fairly typical of the late granite-pegmatite-aplite suite that occurs on the margins of CWB complex
Mineral | Abundance (%) |
---|
biotite |
muscovite |
magnetite |
Rock Number: 4
- 10 cm Molson, of the MG variety
-following the normal 050 degree trend
Manitoba Geological Survey, 2017