Cross Lake Project (1983-86)

Geologist    P.G. Lenton     Year    83     STATION    5063
EASTING   570351     NORTHING   6038110     ZONE   14     DATUM   NAD83
Date of mapping    06/25/1983

STRUCTURAL DATA

Planar Structures:
Structure type Strike Dip Separation
schistosity 79 49
fault 246 75

Dikes and Sills:
Rock Number Type Width (m) Strike Dip
0 pegmatite 0.25 201 49

Linear Structures
Type Plunge Azimuth
microcrenulation 71 306
rodding 0 0

Rodding is stretching and rolling of augen.
Pegmatites are quartz-plagioclase-microcline with minor biotite - some are sheared out almost completely.

PETROLOGIC DATA

Rock Number: 1

Rock Type: granodiorite
Descriptors:
beige to grey
dark grey
cataclastic
medium grained
strongly deformed
20% intrusive lit
inclusions present

Field Description:

-same medium grained beige-grey granodiorite with amphibolite and sediment xenoliths
-deformation extreme
-20% injected tonalitic aplitie lit

Textural Features
Type Mineral Min. Size Max. Size Abundance (%) Unit
mafic mineral amphibole 0.0 0.0 15.0 %
groundmass grainsize 0.0 1.0 mm

Manitoba Geological Survey, 2017