Cross Lake Project (1983-86)


Geologist    P.G. Lenton     Year    84     STATION    5482
EASTING   575561     NORTHING   6041026     ZONE   14     DATUM   NAD83
Date of mapping    06/28/1984

STRUCTURAL DATA

Planar Structures:
Structure type Strike Dip Separation
cataclastic foliation 251 80

PETROLOGIC DATA

Rock Number: 1

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

Field Description:

-cataclastic gneiss composed of equal proportions of augen porphyritic granodiorite and massive grey granodiorite
-extensive injection of thin pegmatitic lit now comminuted to leuco-feldspar augen gneiss

Rock Number: 2

Rock Type: amphibolite
Descriptors:
massive
melanocratic

Field Description:

-massive black amphibolite that looks too featureless and coarse to have been volcanic--possibly part of gabbro suite

Minerals of Note
Mineral Abundance (%)
pyrite
hornblende


Manitoba Geological Survey, 2017