Cross Lake Project (1983-86)

Geologist    P.G. Lenton     Year    86     STATION    6336
EASTING   574932     NORTHING   6049906     ZONE   14     DATUM   NAD83
Date of mapping    07/10/1986

STRUCTURAL DATA

Layering:
Layering type Strike Dip top Direction
bedding 320 26

Minor Folds
Type Symmetry Strike Dip Plunge Azimuth
similar fold M 88 86 34 88

PETROLOGIC DATA

Rock Number: 1

Rock Type: sandstone
Descriptors:
laminated
quartz-biotite

Field Description:

-grey weathering quartz rich (45-50%) sandstones
-generally massive 30 to 50 cm beds but with local beds with 3 to 5 mm internal lamination of more mafic horizons, scattered 20 cm more pelitic horizons of MV phyllite
-extensive development of TL in MV rich horizons
-grading indicates tops right

Minerals of Note
Mineral Abundance (%)
tourmaline
muscovite

Rock Number: 2

Rock Type: pegmatite

Field Description:

-3 m dike of white MV-TL pegmatite
-quartz poor with layers of MV granite--essentially a body of the adamellite granite
-primary igneous layering at 052/steep dip

Minerals of Note
Mineral Abundance (%)
muscovite
tourmaline

Manitoba Geological Survey, 2017