Cross Lake Project (1983-86)


Geologist    P.G. Lenton     Year    84     STATION    5458
EASTING   572098     NORTHING   6052779     ZONE   14     DATUM   NAD83
Date of mapping    06/23/1984

STRUCTURAL DATA

Planar Structures:
Structure type Strike Dip Separation
cataclastic foliation 21 90

PETROLOGIC DATA

Rock Number: 1

Rock Type: granite
Descriptors:
pegmatitic
leucocratic

Field Description:

-muscovite appears all secondary on shears
-whole large outcrop is coarse granite and pegmatite cut by pegmatite and contains large rafts of mafic wackes
-microcline mottled pink, white, and grey
-biotite aligned in a weak erratic foliation
-tourmaline random throughout body but is highly concentrated on the margins of dikes cutting the leuco-granite
-garnet contentrates in patches of pegmatites as crystals up to 1 cm
-secondary muscovite is lemon yellow, fibrous and restricted to shears

Minerals of Note
Mineral Abundance (%)
tourmaline
garnet
biotite


Manitoba Geological Survey, 2017