Cross Lake Project (1983-86)

Geologist P.G. Lenton Year 86 STATION 6560
EASTING 573066 NORTHING 6041474 ZONE 14 DATUM NAD83
Date of mapping 08/08/1986

STRUCTURAL DATA

Planar Structures:
Structure type | Strike | Dip | Separation
cataclastic foliation | 49 | 75 |

Dikes and Sills:
Rock Number | Type | Width (m) | Strike | Dip
0 | Molson dike | 0.00 | 231 | 77

PETROLOGIC DATA

Rock Number: 1

Rock Type: multi-component schlieric gneiss
Field Description:

-highly variable dominantly old augen TNLT
-deformation extreme
-GRDR along contact of large Molson is leuco with equant feldspars in a quartz matrix
-this resembles WJC

Rock Number: 2

Rock Type: diabase
Field Description:

-Molson (major)
-probable width 20 to 25 m but only 20 to 22 m are exposed
-foliation is quite strong and also strong fracture set at 306 degree/87 degrees that has extensive alteration along it and it shows a consistent trend but highly variable dips.
-this dike is unusual in that it has included large xenoliths of CR, the largest 2 x 8 m and several small inclusions that show some thermal effect, predominantly bleaching and marginal assimilation

Minerals of Note
Mineral | Abundance (%)
magnetite

Manitoba Geological Survey, 2017