Cross Lake Project (1983-86)
Geologist P.G. Lenton
Year 86
STATION 6227
EASTING 560858
NORTHING 6033771
ZONE 14
DATUM NAD83
Date of mapping 06/25/1986
STRUCTURAL DATA
Structure type | Strike | Dip | Separation |
---|---|---|---|
schistosity | 11 | 54 | |
fracture cleavage | 71 | 89 |
-foliation Z--tightly spaced shear fractures with minor pseudotachylite
-spacing varies from 5 m to 10 cm, zone is 1 m wide
PETROLOGIC DATA
Rock Number: 1
-late grey GRDR homogeneous, equigranular appears to be late outcrop, high level intrusion contains numerous sm. miarolitic patch pegmatites and discont. veins of granitic comp.
-contain rosettes of mag. up to 7 mm across
-generally unearly distributed down the centres of the seams
-unit is not same as any previous encountered, here or on Cross
Lake
Mineral | Abundance (%) |
---|
magnetite |
Rock Number: 2
-usual highly schlieric and highly deformed GRDR/TNLT
-scattered nebulus inclusions
-not clear whether these are rafts in rock type 1 or just intruded by it
Manitoba Geological Survey, 2017