Cross Lake Project (1983-86)
Geologist P.G. Lenton
Year 86
STATION 6182
EASTING 575277
NORTHING 6045676
ZONE 14
DATUM NAD83
Date of mapping 06/20/1986
STRUCTURAL DATA
Structure type | Strike | Dip | Separation |
---|---|---|---|
schistosity | 297 | 34 |
PETROLOGIC DATA
Rock Number: 1
-dark greenish black weathering green to greenish grey on fresh surface
-comp. is probably UM
-rock is either sheared volcanic or vol. sed.
-some layers rich in MG with a nubbly weathering pattern caused by carb. weathering out
-rock is essentially mafic to UM rock with breccia fragments sitting in carb. other layers around massive, around layered have epidotite horizons
SAMPLE A -massive layered
SAMPLE B -breccia
-brecciated unit often has large cm size HB growing in carb. matrix in gen. unit looks like a sed. section rather than pillow breccia or primary volcanic breccia
Manitoba Geological Survey, 2017