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