Cross Lake Project (1983-86)


Geologist    P.G. Lenton     Year    86     STATION    6399
EASTING   563310     NORTHING   6047179     ZONE   14     DATUM   NAD83
Date of mapping    07/19/1986

STRUCTURAL DATA

Planar Structures:
Structure type Strike Dip Separation
cataclastic foliation 32 48

PETROLOGIC DATA

Rock Number: 1

Rock Type: tonalite
Descriptors:
cataclastic
biotite

Field Description:

-light grey weathering, med.-coarse grained, CATA-TNLT
-phenocrysts are the same as the MEGA-GRDR
-pinkish grey zoned MC, but here they represent <1% of the rock and range from .5 to 3 cm
-quartz 35%
-rock has layered appearance shown by injections of early sheared white GRDR-lee
-rock probably represents a variation of unit 9d
-both matrix and lee contain abundant yellow-green epidote


Manitoba Geological Survey, 2017