Cross Lake Project (1983-86)

Geologist P.G. Lenton Year 83 STATION 5197
EASTING 573597 NORTHING 6057488 ZONE 14 DATUM NAD83
Date of mapping 08/07/1983

STRUCTURAL DATA

Planar Structures:
Structure type | Strike | Dip | Separation
schistosity | 183 | 83 |

PETROLOGIC DATA

Rock Number: 1

Rock Type: granite
Descriptors:
porphyritic
biotite - muscovite bearing
Field Description:

-bright red weathering, significantly less magnetite than previously
- porphyritic texture is not as obvious but still exists with feldspar and muscovite phenocrysts
-numerous quartz veins containing massive black microcrystalline tourmaline
-vein boundaries show a marked degree of pinking, probably due to oxidation of the magnetite in the granite

Minerals of Note
Mineral | Abundance (%)
magnetite

Manitoba Geological Survey, 2017