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