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