Cross Lake Project (1983-86)


Geologist    P.G. Lenton     Year    84     STATION    5404
EASTING   575763     NORTHING   6060382     ZONE   14     DATUM   NAD83
Date of mapping    06/13/1984

STRUCTURAL DATA

Layering:
Layering type Strike Dip top Direction
bedding 237 90 N

Planar Structures:
Structure type Strike Dip Separation
schistosity 237 90
fault 253 82 dextral

Linear Structures
Type Plunge Azimuth
clast elongation 0 0

-highly attenuated section-probably 10:1 flattening MINOR TACHYLITE

PETROLOGIC DATA

Rock Number: 1

Rock Type: sandstone
Descriptors:
trough cross-bedding
lithic

Field Description:

-same sequence of trough cross bedded yellow brown wackes-quartz rich (55%) with dominant lithic fragment matrix 1 to 3% quartz granules
-cross beds average 30 cm thick with aberage 195 cm length at 2 to 5 degree angles (after attenuation)
-trough pebble fill is dominantly sediment clasts with <5% granitoid-probably unit (1) 15 to 20% mafic clasts and mudstones
-no iron formation clast noted

Minerals of Note
Mineral Abundance (%)
muscovite
garnet
magnetite


Manitoba Geological Survey, 2017