Cross Lake Project (1983-86)

Geologist P.G. Lenton Year 86 STATION 6480
EASTING 562968 NORTHING 6049145 ZONE 14 DATUM NAD83
Date of mapping 07/27/1986

STRUCTURAL DATA

Planar Structures:
Structure type | Strike | Dip | Separation
cataclastic foliation | 255 | 58 |

PETROLOGIC DATA

Rock Number: 1

Rock Type: granodiorite
Descriptors:
layered
schlieric or schlieren present
Field Description:

-same style of pink and grey orthogneiss as at prev. stations
-shows a fine banding of grey GRDR and pink granite, in places on a mm scale
-caused by extreme shearing of grey GRDR with 20 to 30 % Granite and pegmatite 'lit'
-leaving numerous small pegmatitic augen
-GRDR is slightly porphyritic (grey MC phenocrysts to 4 mm)
-numerous BO-schlieren that are smeared over congdbtances?? in the foliation
-on Whole Island, only one recognizable inclusion of grey BO-gneiss 4 cm wide and 5 m long
-GRDR is not too different than CWB camp exposure

Manitoba Geological Survey, 2017