Cross Lake Project (1983-86)
Geologist P.G. Lenton
Year 84
STATION 5461
EASTING 574682
NORTHING 6060286
ZONE 14
DATUM NAD83
Date of mapping 06/24/1984
STRUCTURAL DATA
Layering type | Strike | Dip | top Direction |
---|---|---|---|
bedding | 171 | 84 |
Structure type | Strike | Dip | Separation |
---|---|---|---|
schistosity | 221 | 80 | |
fault | 359 | 90 | sinistral |
-photos 1 and 2 trough conglomerate and crossbedded sands
-photos 3 is festooned sands
-starting at north end of Island walking the shoreline south on the east side
PETROLOGIC DATA
Rock Number: 1
-entire shoreline for north .5 of island is a uniform section of cross bedded sandstones and trough conglomerate deposits
-units alternate regularly at about 50 cm sands and 30 cm conglomerate
-schistocity is at a high angle to bedding
-clast elongation is at the S surface intersection
-no reliable topping direction
-the change in stratigraphy occurs abruptly at a fault bringing the sand and conglomerate unit into juxtaposition with white quartz rich festooned sand beds
-festooned sands have rare pebble lags and scattered calc-silicate horizons
-there appears to be a slight angular relationship at the fault between bedding directions in the two units
Mineral | Abundance (%) |
---|
garnet |
Manitoba Geological Survey, 2017