Cross Lake Project (1983-86)
Geologist P.G. Lenton
Year 85
STATION 6035
EASTING 576766
NORTHING 6044838
ZONE 14
DATUM NAD83
Date of mapping 06/14/1985
STRUCTURAL DATA
Structure type | Strike | Dip | Separation |
---|---|---|---|
cataclastic foliation | 323 | 54 | |
cataclastic foliation | 49 | 45 |
Type | Plunge | Azimuth |
---|---|---|
mineral lineation | 31 | 65 |
-3 photos of pseudotachylite
-1 photo of general texture of rock
-pseudotachylites follow general 150 degree trend but are very irregular
PETROLOGIC DATA
Rock Number: 1
-coarse homo equi. pink GRDR with "flaser" like augen texture.
-not a porphyry, augen form from discrete aggregates with carved shear planes around them.
-has black BO with chlorite streaks stretched in the fol. plane
-mafics seem to aggregate somewhat which suggests this may originally have been a HB-GRDR
-has a grey white weathering and pink and green streaked fresh surface.
-where outcrop was underwater, feldspars are all stained a matte brick red with white quartz
-no distinction between KF and PG
-this is not the same as pink rock across channel
-no fluorite, different texture and appearance
-probably WJC GRDR
Manitoba Geological Survey, 2017