Cross Lake Project (1983-86)


Geologist    P.G. Lenton     Year    86     STATION    6137
EASTING   566971     NORTHING   6054703     ZONE   14     DATUM   NAD83
Date of mapping    06/16/1986

STRUCTURAL DATA

Planar Structures:
Structure type Strike Dip Separation
schistosity 44 80

PETROLOGIC DATA

Rock Number: 1

Rock Type: granite
Descriptors:
seriate porphyritic
leucocratic

Field Description:

-a much better exposure of core granite
-outcrop surface spotted with small hematitic pits, some may be residual magnetite but others may represent pits left by MV knots derived from the sandstone weathering out
-matrix grain size 1mm with phenocryst grain size ranging to 12 mm suggestion of layering or banding shown by variations in grain size and phenocryst population
-rock appears to be typical of primative 2-mica peraluminous late granite

Minerals of Note
Mineral Abundance (%)
muscovite
garnet
biotite


Manitoba Geological Survey, 2017