Cross Lake Project (1983-86)


Geologist    P.G. Lenton     Year    84     STATION    5569
EASTING   576703     NORTHING   6058566     ZONE   14     DATUM   NAD83
Date of mapping    07/11/1984

STRUCTURAL DATA

Planar Structures:
Structure type Strike Dip Separation
fault 244 88

PETROLOGIC DATA

Rock Number: 1

Rock Type: feldspar - quartz porphyry
Descriptors:
cataclastic

Field Description:

-small outcrop of a strange, greeny-grey weathering, homogeneous quartz, porphyry
-there is an extensive network of alteration veinlets resulting in a pink colour
-there is also a suggestion of internal plastic fabric suggesting this may be a dacite breccia
-this may just be an alteration feature, but the zones have a distinct oval shapes and are coarser grained than surrounding "matrix"


Manitoba Geological Survey, 2017