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

Planar Structures:
Structure type | Strike | Dip | Separation
cataclastic foliation | 296 | 59 |

PETROLOGIC DATA

Rock Number: 1

Rock Type: granodiorite
Descriptors:
augened
biotite
Field Description:

-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.

Textural Features
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