Cross Lake Project (1983-86)


Geologist    P.G. Lenton     Year    86     STATION    6341
EASTING   570855     NORTHING   6051063     ZONE   14     DATUM   NAD83
Date of mapping    07/10/1986

STRUCTURAL DATA

Planar Structures:
Structure type Strike Dip Separation
schistosity 38 76
joint 132 81

-bedding and foliation parallel
-shear--strong joint set with sporadic shearing

PETROLOGIC DATA

Rock Number: 1

Rock Type: sandstone
Descriptors:
bedded
feldspathic

Field Description:

-as last station
-decrease in abundance of Al rich MV knot beds and reduction in average bed thickness to 15 cm to 20 cm
-GR disseminated, especially in MV rich beds-TL restricted to vicinity of pegs that follow the foliation
-main units are now massive or possibly graded sands with coarse sands to quartz granule sand horizons 1-2 cm thick
-cross bedding rare
-tops uncertain
-pegs extensivly baudinaged - flattening and extrusion severe
-SAMPLE A massive sand
-SAMPLE B CLCC layer 25 cm thick
-CLCC layers are more abundant and thicker with QZ-EP cores and EP-ampb-BO veins
-they occur as horizons and are baudinaged

Minerals of Note
Mineral Abundance (%)
muscovite
tourmaline
garnet


Manitoba Geological Survey, 2017