Cross Lake Project (1983-86)
Geologist P.G. Lenton
Year 83
STATION 5040
EASTING 570825
NORTHING 6041801
ZONE 14
DATUM NAD83
Date of mapping 06/23/1983
STRUCTURAL DATA
Layering type | Strike | Dip | top Direction |
---|---|---|---|
bedding | 346 | 50 |
Structure type | Strike | Dip | Separation |
---|---|---|---|
schistosity | 346 | 50 |
PETROLOGIC DATA
Rock Number: 1
-finely laminated mafic gneiss with abundant boudinaged injection sills
-very large rafts up to 100 m or more in granitic rock
-much of amphibolite is well layered sedimentary amphibolite with
mafic and leucocratic layers that are continuous for extensive distances on outcrop.
-other layers are more massive salt & pepper amphibolite that may have been extrusive
Rock Number: 2
-mainly old tonalite with wisps of biotite and rare vague inclusions of granodiorite
Type | Mineral | Min. Size | Max. Size | Abundance (%) | Unit |
---|---|---|---|---|---|
mafic mineral | biotite | 0.0 | 0.0 | mm |
Manitoba Geological Survey, 2017