Cross Lake Project (1983-86)
Geologist P.G. Lenton
Year 86
STATION 6209
EASTING 570224
NORTHING 6047363
ZONE 14
DATUM NAD83
Date of mapping 06/23/1986
STRUCTURAL DATA
Layering type | Strike | Dip | top Direction |
---|---|---|---|
bedding | 289 | 73 |
Structure type | Strike | Dip | Separation |
---|---|---|---|
schistosity | 289 | 73 |
Type | Plunge | Azimuth |
---|---|---|
boudin axis | 0 | 0 |
-pitch is 85 degrees to the east in Fl
-some layers show a granitic lit that appears to be an injection but also has some of the characteristics of mobilisate
PETROLOGIC DATA
Rock Number: 1
-greenish black chloritic highly deformed basalt
-very dense possibly verging on ultramafic
-exposure has a layered look of greenish-black hornblende rich and greenish-grey epidote rich material
-could be either a pillowed unit or a breccia
-all that remains is a layered cataclastic gneiss
-this structurally overlies the sedimentary rocks
-there are several rusty gossen zones a few cm wide and non-continuous
Mineral | Abundance (%) |
---|
garnet |
chlorite |
Rock Number: 2
-grey laminated feldspar rich sandstone-siltstone-mudstone sequence
-strongly deformed but retaining continuity of layering
-feldspathic sandstone layers are beige to light grey, rich in feldspar and pink garnet
-this is interbedded and possibly graded with grey fine grained more siliceous siltstone and thin black garnetiferous muds
-there are some layers up to 10 cm thick of black garnetiferous mafic siltstone or mudstone (see sample B)
Mineral | Abundance (%) |
---|
garnet |
Manitoba Geological Survey, 2017