Cross Lake Project (1983-86)

Geologist P.G. Lenton Year 86 STATION 6167
EASTING 571208 NORTHING 6047083 ZONE 14 DATUM NAD83
Date of mapping 06/19/1986

STRUCTURAL DATA

Planar Structures:
Structure type | Strike | Dip | Separation
cataclastic foliation | 285 | 59 |

PETROLOGIC DATA

Rock Number: 1

Rock Type: gneiss
Descriptors:
CCLS
leucocratic
Field Description:

-layered grey and white slightly augened gneiss
-local zones of more intense crushing 10 to 20 cm wide form layers of mylonite gneiss
-some vague biotite schlieren, highly flattened in the foliation, may have been amphibolite inclusions
-layered appearance largely comes from sheared pegmatite lee
-the rock is probably granitic in origin, but whether it was affiliated with CWB or teh grey porphyry is impossible to determine
-if necessary chemical analysis could probably tell

Manitoba Geological Survey, 2017