Cross Lake Project (1983-86)
Geologist P.G. Lenton
Year 86
STATION 6488
EASTING 561282
NORTHING 6044866
ZONE 14
DATUM NAD83
Date of mapping 07/27/1986
STRUCTURAL DATA
PETROLOGIC DATA
Rock Number: 1
-quartz =25%, as previous station
Mineral | Abundance (%) |
---|
epidote |
Rock Number: 2
-black and white salt and pepper gabbro homo. equi.
-extensivly intruded by pegmatite which also occupies the contact with the GRDR
-appears to have undergone high degree of recrystalization
Rock Number: 3
-alternating HB-rich DI-EP-Rich layers
-layering is on a cm scale
-the layering maybe strictly tectonic and it is impossible to saywhether the rock is mafic sed. or a sheared volcanic
-both gabbro and ampb are largely included in the pegmatite
Rock Number: 4
-ultracoarse-pegmatitic granite
-BO is the only mafic well-foliated locally sheared
-occupies most of the point with large inclusions of amphibolite
-appears to be a simple low differeniate type probably of the minago series, no zoning
Manitoba Geological Survey, 2017