Cross Lake Project (1983-86)
Geologist P.G. Lenton
Year 85
STATION 6004
EASTING 576315
NORTHING 6045420
ZONE 14
DATUM NAD83
Date of mapping 06/07/1985
STRUCTURAL DATA
Structure type | Strike | Dip | Separation |
---|---|---|---|
schistosity | 295 | 47 |
-distinguishing characteristics have been reduced to FL, lower QZ, and higher mafic content for the grey porphyry
PETROLOGIC DATA
Rock Number: 1
-General appearance-has much of textural characteristics of pink granite but is more mafic with a uniform grey color.
-quartz has decreased to around 25 % with an increase in size and abundance of microcline augens.
-Fl content highest noted to date
-probably represents grey porphyry even though groundmass is coarser than previously noticed. There are numerous small highly flattened, fine grained inclusions probably of supracrustals
-metasomatism is evident as the commonly contain feldspar phenocrysts.
Manitoba Geological Survey, 2017