Cross Lake Project (1983-86)


Geologist    P.G. Lenton     Year    84     STATION    5669
EASTING   568147     NORTHING   6048852     ZONE   14     DATUM   NAD83
Date of mapping    07/26/1984

STRUCTURAL DATA

Layering:
Layering type Strike Dip top Direction
bedding 51 83

Planar Structures:
Structure type Strike Dip Separation
schistosity 291 65

Linear Structures
Type Plunge Azimuth
rodding 62 55

PETROLOGIC DATA

Rock Number: 1

Rock Type:
Descriptors:
mafic

Field Description:

-highly altered mafic wackes and mafic mudstones
-alteraton is feld-quartz-carbonate
(see sample C)
-alteration veining accompanied by formation of HB selvages
-there are some units that may have been volcanic flows of basaltic andesite composition but they are screwed by th alteration to a brown weathering veined rock with 1 to 4 mm subhedral block HB crystals evenly distributed through them


Manitoba Geological Survey, 2017