Cross Lake Project (1983-86)

Geologist P.G. Lenton Year 83 STATION 5104
EASTING 574391 NORTHING 6041282 ZONE 14 DATUM NAD83
Date of mapping 07/08/1983

STRUCTURAL DATA

Planar Structures:
Structure type | Strike | Dip | Separation
gneissosity | 47 | 64 |

Dikes and Sills:
Rock Number | Type | Width (m) | Strike | Dip
2 | Molson dike | 0.00 | 307 | 86

PETROLOGIC DATA

Rock Number: 1

Rock Type: granodiorite
Descriptors:
augened
biotite
Field Description:

-extremely complex, highly deformed agmatized complex gneissic granodiorite surrounding numerous inclusions of the old unit 5 gabbro complex

Rock Number: 2

Rock Type: gabbro
Field Description:

-continuation of the major Molson dike
-hangingwall contact fairly defined
-Footwall contact not exposed
-Estimated thickness 65 m. The dike appears to be narrowing sharply
-only central regions have cumulate layering
-there is no leuco-gabbro phase.
-chill margins on the hanging wall is aphanitic for 60 cm
-there is a 40 cm converging dike exposed 2 m above the main contact
-sample of hanging wall chill right at contact

Manitoba Geological Survey, 2017