Cross Lake Project (1983-86)


Geologist    P.G. Lenton     Year    83     STATION    5049
EASTING   571355     NORTHING   6040281     ZONE   14     DATUM   NAD83
Date of mapping    06/23/1983

STRUCTURAL DATA

Planar Structures:
Structure type Strike Dip Separation
gneissosity 71 78

-MCSG-multicomponent schlieric gneiss

PETROLOGIC DATA

Rock Number: 1

Rock Type: multi-component schlieric gneiss
Descriptors:
tonalitic
complex

Field Description:

Multi-component schlieric gneiss
Extremely complex gneiss assemblage. Seems to have several components:
1. Base rock is old grey tonalite
2. Pods of younger grey porphritic granodiorite
3. Numerous ages of simple pegmatites lit
4. Amphibolite rafts - massive
5. Rafts and schlieric zones of fine grained grey psammitic textured rock - unknown rock type. Resembles greywacke metatexite - could be inclusion of early sediment or leucocratic fine early intrusive


Manitoba Geological Survey, 2017