Cross Lake Project (1983-86)

Geologist P.G. Lenton Year 84 STATION 5507
EASTING 576575 NORTHING 6043011 ZONE 14 DATUM NAD83
Date of mapping 06/29/1984

STRUCTURAL DATA

PETROLOGIC DATA

Rock Number: 1

Rock Type: multi-component schlieric gneiss
Field Description:

-very complex series of orthogneisses
-rock was probably a layered mylonite of WJ GRDR , various mafic inclusions, abundant pegmatites, and possibly some Clearwater Bay TNLT
-it has since been recrystallized into a mylonitic gneiss
-the whole outcrop is a large Z-fold, of around .3 m amplitude, plunging around 42 degrees at 051
-the short limb on the fold has failed with << movement and was injected by numerous pegmatites that were subsequently sheared
-this zone of the lake is probably a major compressive zone separating the eastern and western plutonic blocks
-SAMPLE A -is of what was probably WJ GRDR

Minerals of Note
Mineral | Abundance (%)
garnet

Manitoba Geological Survey, 2017