Cross Lake Project (1983-86)


Geologist    P.G. Lenton     Year    85     STATION    6014
EASTING   575325     NORTHING   6044629     ZONE   14     DATUM   NAD83
Date of mapping    06/07/1985

STRUCTURAL DATA

Layering:
Layering type Strike Dip top Direction
bedding 355 35

Planar Structures:
Structure type Strike Dip Separation
schistosity 355 35

PETROLOGIC DATA

Rock Number: 1

Rock Type: greywacke
Descriptors:
layered
mafic

Field Description:

-grey weathering feldspathic wacke seems to have both HB and BO
-beds are up to one metre thick with internal cm lamination
-fibrous amphibole, chlorite rosettes, form on cleavage planes
-appears to be quartz poor possibly 15 %
-injected granitically lit contain HB and have HB and BP salvages
-the whole sequence appears to be flattening and swinging into channel direction
-this is probably drapped over the domal edge of CWB complex
-based on composition; part of lower cycle


Manitoba Geological Survey, 2017