Cross Lake Project (1983-86)


Geologist    P.G. Lenton     Year    85     STATION    6067
EASTING   575665     NORTHING   6044691     ZONE   14     DATUM   NAD83
Date of mapping    06/20/1985

STRUCTURAL DATA

Planar Structures:
Structure type Strike Dip Separation
cataclastic foliation 312 36

Linear Structures
Type Plunge Azimuth
boudin axis 19 120

PETROLOGIC DATA

Rock Number: 1

Rock Type: gneiss
Descriptors:
cataclastic

Field Description:

-mixed sequence of intrusive and sedimentary gneisses
- hard to tell if this is a sed. sequence with extensive intrusion or staged?? sheared
-sed. is a grey quartz rich augen gneiss with 5-8% BO
-probably a greywacke
-intrusive is a beige to light grey leuco-TNLT (CI=2)
-a few white quartz veins cut the foliation
-Greywacke doens't resemble other seds seen, but it is heavily augened and all primary character destroyed


Manitoba Geological Survey, 2017