Cross Lake Project (1983-86)

Geologist P.G. Lenton Year 86 STATION 6189
EASTING 558768 NORTHING 6023364 ZONE 14 DATUM NAD83
Date of mapping 06/21/1986

STRUCTURAL DATA

Planar Structures:
Structure type | Strike | Dip | Separation
cataclastic foliation | 50 | 54 |

PETROLOGIC DATA

Rock Number: 1

Rock Type: granodiorite
Descriptors:
augened
biotite
Field Description:

-highly deformed, moderatly sheared, coarse grained augen gneiss
-mafics appear to be all BO, but with a clotted texture suggesting retrograded HB
-rock weathers grey white but there has been an extensive HM pinking often associated with an anastomosing of early pink pegmatites
-these dikes cut the foliation in the GRDR but are foliated and deformed later
-this appears to be the standard old GRDR; quartz is low (around 20%)
-it has some of the textural features of WJC, but the quartz content is too low and the feldspar are elongate and blue-grey
-there are also amphibolite and gabbro inclusions

Minerals of Note
Mineral | Abundance (%)
magnetite
hematite

Manitoba Geological Survey, 2017