Cross Lake Project (1983-86)


Geologist    P.G. Lenton     Year    83     STATION    5085
EASTING   567856     NORTHING   6044132     ZONE   14     DATUM   NAD83
Date of mapping    07/04/1983

STRUCTURAL DATA

Planar Structures:
Structure type Strike Dip Separation
schistosity 72 78

-abundant late biotite-microcline-plagioclase-quartz pegmatite veins in S2 axial planar direction
-veinlets in long limbs of isoclinal folds refract into axial plane
in fold noses

PETROLOGIC DATA

Rock Number: 1

Rock Type: two component schlieric gneiss - intimate mixture of 2 major units

Field Description:

-equal proportions of old schlieric tonalite and grey porphyritic granodiorite.
-Compressive augening of early pegmatitic lit common.
-Rare Z folds with well developed axial planar schistosity parallel to S1


Manitoba Geological Survey, 2017