Cross Lake Project (1983-86)

Geologist P.G. Lenton Year 83 STATION 5023
EASTING 568178 NORTHING 6043039 ZONE 14 DATUM NAD83
Date of mapping 06/20/1983

STRUCTURAL DATA

Layering:
Layering type | Strike | Dip | top Direction
bedding | 291 | 83 |

Linear Structures
Type | Plunge | Azimuth
microcrenulation | 82 | 52

-pitches 87 degrees E in layering

PETROLOGIC DATA

Rock Number: 1

Rock Type: sediments / sedimentary schist
Descriptors:
finely laminated
mafic
gossaned
volcaniclastic
Field Description:

-finely laminated hornblende-epidote amphibolite (at higher grade would be identical to Kissynew "marker" amphibolite)
-Volcanic derived-probable tuff/wacke volcaniclastic
-60 m zone of parallel narrow rusty gossans

Minerals of Note
Mineral | Abundance (%)
garnet
epidote
hornblende

Rock Number: 2

Rock Type: tonalite
Descriptors:
cataclastic
leucocratic
shears present or common
50 % pegmatitic lit
rafts or inclusions present
sericitized
augened
boudinaged
Field Description:

-around 50% pegmatite with discrete augen shear zones. Large rafts of mafic sediments
-Highly sericitized shears
-Extensive boudinage that also pinches and disrupts shear fabric

Minerals of Note
Mineral | Abundance (%)
garnet
biotite

Manitoba Geological Survey, 2017