Cross Lake Project (1983-86)

Geologist P.G. Lenton Year 84 STATION 5402
EASTING 575529 NORTHING 6060279 ZONE 14 DATUM NAD83
Date of mapping 06/11/1984

STRUCTURAL DATA

Planar Structures:
Structure type | Strike | Dip | Separation
schistosity | 56 | 90 |

-multiple mylonite seams
-garnet blasts growing in the mylonite but rolled only, not crushed seem to indicate cataclasis was largely pre-thermal climax-see photos

PETROLOGIC DATA

Rock Number: 1

Rock Type: wacke
Descriptors:
lithic
Field Description:

-same type of interbedded wacke-CGLM sequence as 5400 with higher deformation-losing track of bedding directions because of extreme cataclasis
-quartz content seems to have decreased to 40%

Minerals of Note
Mineral | Abundance (%)
garnet
muscovite
sillimanite

Rock Number: 2

Rock Type: conglomerate
Descriptors:
polymictic
Field Description:

-same as previous stations-extreme flattening and rodding
-no troughs or cross beds recognizable
-all matrix supported

Minerals of Note
Mineral | Abundance (%)
garnet
muscovite

Manitoba Geological Survey, 2017