Cross Lake Project (1983-86)


Geologist    P.G. Lenton     Year    83     STATION    5102
EASTING   574001     NORTHING   6040868     ZONE   14     DATUM   NAD83
Date of mapping    07/08/1983

STRUCTURAL DATA

Planar Structures:
Structure type Strike Dip Separation
gneissosity 83 77

PETROLOGIC DATA

Rock Number: 1

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

Field Description:

-Granodiorite based 50 % injected lit

Rock Number: 2

Rock Type: pyroxenite
Descriptors:
massive

Field Description:

-boudined
-A 4 m boudin of agmatized gabbro complex comprised mainly of massive dark olive-green pyroxenite with lesser amounts leuco-gabbro-weather rusty brown
-fresh surface shows trace disseminations of pyrite and pyrrhotite

Minerals of Note
Mineral Abundance (%)
pyrite
pyrrhotite


Manitoba Geological Survey, 2017