Cross Lake Project (1983-86)


Geologist    P.G. Lenton     Year    84     STATION    5521
EASTING   567938     NORTHING   6050646     ZONE   14     DATUM   NAD83
Date of mapping    07/01/1984

STRUCTURAL DATA

Layering:
Layering type Strike Dip top Direction
metamorphic layering 261 64

Planar Structures:
Structure type Strike Dip Separation
schistosity 261 64

-PHOTOS
1. AND 3 -scenic
1 and 2 -show general texture and small mylonite truncating layer
-3 distribution of pegs and mob(?) lit

PETROLOGIC DATA

Rock Number: 1

Rock Type: greywacke
Descriptors:
matrix supported
psammitic

Field Description:

-interlayered psammite and dirty-psammite to semi-pelite
-psammite is moderatly quartz rich around 40 to 45%
-outcrop is 25 to 30 % granitic lit and pegmatite that is highly deformed
-this may be not - TL bearing mobile lit (around 5%) and TL-GR-MV rich pegmatite that is injection
-MV is greenish
-pegs have apple green apatite
-2 samples -- duplicates for analysis
-rare CLCC pods

Minerals of Note
Mineral Abundance (%)
garnet
muscovite
tourmaline

Rock Number: 2

Rock Type: pegmatite

Field Description:

-sample of peg. pod for bulk analysis

Minerals of Note
Mineral Abundance (%)
garnet
tourmaline
muscovite
apatite


Manitoba Geological Survey, 2017