Cross Lake Project (1983-86)

Geologist P.G. Lenton Year 86 STATION 6243
EASTING 558906 NORTHING 6035831 ZONE 14 DATUM NAD83
Date of mapping 06/26/1986

STRUCTURAL DATA

Planar Structures:
Structure type | Strike | Dip | Separation
cataclastic foliation | 47 | 63 |

PETROLOGIC DATA

Rock Number: 1

Rock Type: granodiorite
Descriptors:
seriate porphyritic
biotite
Field Description:

-much more sheared and intruded by pegmatites and blue quartz veins
-phenocryst content down to 3 to 4%

Rock Number: 2

Rock Type: diorite
Descriptors:
gneiss / gneissic
hornblende - biotite bearing
Field Description:

-salt and pepper meso-diorite
-black HB altering to BO
-occurs as series of very large rafts
-highly contorted and injected with old GRDR, pegmatite, apalite and quartz veins
-no indication of a primary layering or compostitional variation
-rafts generally aligned in the foliation plane

Manitoba Geological Survey, 2017