Cross Lake Project (1983-86)


Geologist    P.G. Lenton     Year    83     STATION    5081
EASTING   572422     NORTHING   6039510     ZONE   14     DATUM   NAD83
Date of mapping    06/30/1983

STRUCTURAL DATA

PETROLOGIC DATA

Rock Number: 1

Rock Type: gabbro

Field Description:

Footwall contact with chill margin. Transition upward through pyroxenite into anorthositic gabbro. Between pyroxenite and anorthositic gabbro is a zone of screens (?) of older grantitoids. Looks like some 30-50cm pegmatites may be younger and intrude gabbro but all is sheared and unclear.
Plagiocalse glomerocrysts cluster around inclusions. Anorthositic gabbro contains several cognate inclusions of chill margin.


Manitoba Geological Survey, 2017