Cross Lake Project (1983-86)

Geologist P.G. Lenton Year 84 STATION 5476
EASTING 577696 NORTHING 6061524 ZONE 14 DATUM NAD83
Date of mapping 06/27/1984

STRUCTURAL DATA

PETROLOGIC DATA

Rock Number: 1

Rock Type: gabbro
Descriptors:
massive
hornblende bearing
Field Description:

-whole island is massive featureless fine grained gabbro
-no discernable fabric but I think that the unit is not a Molson
-it is cut by veins of quartz and quartz feldspar
-has strong joint patterns
-may be Molson but should be thin sectioned to be sure

Textural Features
Type | Mineral | Min. Size | Max. Size | Abundance (%) | Unit
mafic mineral |  | 0.0 | 0.0 | 45.0 | %
groundmass grainsize |  | 0.0 | 0.5 |  | mm

Manitoba Geological Survey, 2017