Cross Lake Project (1983-86)

Geologist P.G. Lenton Year 86 STATION 6421
EASTING 563577 NORTHING 6045495 ZONE 14 DATUM NAD83
Date of mapping 07/21/1986

STRUCTURAL DATA

Planar Structures:
Structure type | Strike | Dip | Separation
cataclastic foliation | 33 | 60 |

PETROLOGIC DATA

Rock Number: 1

Rock Type: gneiss
Descriptors:
augened
MLNT
Field Description:

-layered sequence of sheared mega-crystic GRDR, sheared ampb. and 5 to 50 cm mylonite zones
-mylonites are porphyroclastic with a high degree of rolling and sygmoidal distortion of clasts, quartz and feldspar
-these zones appear to be a fault re-activation feature as the original cataclasis is cut by pink magnetiferous pegmatite which are inturned destroyed in mylonite zones
-there is no diff. in attitude of the 2 shearing directions

Manitoba Geological Survey, 2017