Cross Lake Project (1983-86)

Geologist P.G. Lenton Year 85 STATION 6003
EASTING 576310 NORTHING 6045516 ZONE 14 DATUM NAD83
Date of mapping 06/07/1985

STRUCTURAL DATA

Planar Structures:
Structure type | Strike | Dip | Separation
cataclastic foliation | 303 | 62 |

-one feature that remains inconsistant with the apparent age relation is that the fabric is generally more obvious in younger GRNT than grey porphyry
-this may just be reflection of coarser grain size and uniform grain size distribution

PETROLOGIC DATA

Rock Number: 1

Rock Type: granite
Descriptors:
augened
biotite-microcline bearing
Field Description:

-mottled pink and white younger granite
-30 % quartz variable 3 to 5 % microcline phenocrysts
-MG significantly higher than grey porphyry
-the only real difference between grey porphyry and this unit is a more uniform grain size distribution, coarser groundmass, higher quartz, and MG and fewer phenocrysts.

Minerals of Note
Mineral | Abundance (%)
magnetite

Manitoba Geological Survey, 2017