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
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
-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%
Mineral | Abundance (%) |
---|
garnet |
muscovite |
sillimanite |
Rock Number: 2
-same as previous stations-extreme flattening and rodding
-no troughs or cross beds recognizable
-all matrix supported
Mineral | Abundance (%) |
---|
garnet |
muscovite |
Manitoba Geological Survey, 2017