Cross Lake Project (1983-86)
Geologist P.G. Lenton
Year 83
STATION 5135
EASTING 575338
NORTHING 6041235
ZONE 14
DATUM NAD83
Date of mapping 07/13/1983
STRUCTURAL DATA
Structure type | Strike | Dip | Separation |
---|---|---|---|
cataclastic foliation | 41 | 71 |
-original layering direction trends 134 degrees
PETROLOGIC DATA
Rock Number: 1
-sheared locally to mylanitic augen gneiss
-traces only of muscovite, tourmaline, garnet
-thin radial sprays of biotite major mafic
-contains many highly deformed inclusions of sediments.
-on east of pegmatite area large semi-continuous amphibolite rafts (layers) that look like massive flows but are medium grained (too coarse?) and may be diorite sills
Mineral | Abundance (%) |
---|
garnet |
muscovite |
tourmaline |
Rock Number: 2
-finely laminated mafic to almost amphibolitic greywacke of almost certain proximal volcanic source
Mineral | Abundance (%) |
---|
hornblende |
Manitoba Geological Survey, 2017