Cross Lake Project (1983-86)
Geologist P.G. Lenton
Year 86
STATION 6341
EASTING 570855
NORTHING 6051063
ZONE 14
DATUM NAD83
Date of mapping 07/10/1986
STRUCTURAL DATA
Structure type | Strike | Dip | Separation |
---|---|---|---|
schistosity | 38 | 76 | |
joint | 132 | 81 |
-bedding and foliation parallel
-shear--strong joint set with sporadic shearing
PETROLOGIC DATA
Rock Number: 1
-as last station
-decrease in abundance of Al rich MV knot beds and reduction in average bed thickness to 15 cm to 20 cm
-GR disseminated, especially in MV rich beds-TL restricted to vicinity of pegs that follow the foliation
-main units are now massive or possibly graded sands with coarse sands to quartz granule sand horizons 1-2 cm thick
-cross bedding rare
-tops uncertain
-pegs extensivly baudinaged - flattening and extrusion severe
-SAMPLE A massive sand
-SAMPLE B CLCC layer 25 cm thick
-CLCC layers are more abundant and thicker with QZ-EP cores and EP-ampb-BO veins
-they occur as horizons and are baudinaged
Mineral | Abundance (%) |
---|
muscovite |
tourmaline |
garnet |
Manitoba Geological Survey, 2017