Cross Lake Project (1983-86)
Geologist P.G. Lenton
Year 83
STATION 5186
EASTING 573624
NORTHING 6057004
ZONE 14
DATUM NAD83
Date of mapping 08/05/1983
STRUCTURAL DATA
Structure type | Strike | Dip | Separation |
---|---|---|---|
schistosity | 236 | 89 | |
fault | 225 | 87 |
PETROLOGIC DATA
Rock Number: 1
-phenocryst size increasing to 8 to 10 mm
-megacrysts are equant to subtabular microcline, generally Karlsbad twinning
-the zone of faulting is accompanied by epitotization and chlorotization for around 1.5 m
-in general the rock weathers a darker beige with a blue-grey fresh surface
-there are numerous 5 mm mylonitic zones paralleling the major fault
Mineral | Abundance (%) |
---|
magnetite |
epidote |
Manitoba Geological Survey, 2017