Cross Lake Project (1983-86)
Geologist P.G. Lenton
Year 83
STATION 5002
EASTING 571972
NORTHING 6046524
ZONE 14
DATUM NAD83
Date of mapping 06/17/1983
STRUCTURAL DATA
Structure type | Strike | Dip | Separation |
---|---|---|---|
cataclastic foliation | 296 | 59 |
PETROLOGIC DATA
Rock Number: 1
-Transition from sediments with aplite into injection gneiss zone.
-30 m wide then into grey leucocratic schlieric granodiorite with increasing cataclasis to south
-minor zones of intense granulation.
-Relationship to sediments is obviously intrusive with most cataclasis developed post intrusion.
Type | Mineral | Min. Size | Max. Size | Abundance (%) | Unit |
---|---|---|---|---|---|
mafic mineral | biotite | 0.0 | 0.0 | 10.0 | mm |
PHOTOS
Transition from greywacke to intensely sheared augen granodiorite. note the intense shearing, isoclinal folding and dextral rotation of augen.
Overview of entire exposure showing the development of schlieren and the partial assimilation of older (?) more leucocratic granodiorite.
Manitoba Geological Survey, 2017