Cross Lake Project (1983-86)


Geologist    P.G. Lenton     Year    84     STATION    5631
EASTING   577621     NORTHING   6049757     ZONE   14     DATUM   NAD83
Date of mapping    07/21/1984

STRUCTURAL DATA

Layering:
Layering type Strike Dip top Direction
bedding 21 84 W

Planar Structures:
Structure type Strike Dip Separation
schistosity 86 82

-HB-DORT disappeared abruptly, probably folded back into bush
-PHOTO-cross beds

PETROLOGIC DATA

Rock Number: 1

Rock Type: sandstone
Descriptors:
crossbedded
lithic

Field Description:

-feldspar-quartz sand with lithic fragments (mainly granule but some small pebble) of dominantly grey siltstone (see sample)
-has trough deposits of granule size material and rare pebble troughs
-rare garnetiferous semi-pelite layers 10 to 30 cm thick
-numerous pseudatachylite seams, mainly parallel to foliation
-CLCC concretions common

Minerals of Note
Mineral Abundance (%)
muscovite
garnet


Manitoba Geological Survey, 2017