Cross Lake Project (1983-86)
Geologist P.G. Lenton
Year 86
STATION 6349
EASTING 570744
NORTHING 6049941
ZONE 14
DATUM NAD83
Date of mapping 07/12/1986
STRUCTURAL DATA
Structure type | Strike | Dip | Separation |
---|---|---|---|
schistosity | 75 | 90 |
PETROLOGIC DATA
Rock Number: 1
-much as previous station, although quartz-rich psammites + calc-silicate layers are not as common and dominate rock type is a light grey, feldspar rich... quartz 35% greywacke
-layers with feldspar blasticsis far more common and restricted to BO bearing layers
-baudinage and overtightened synclinal Z-asymetric folds have largely disrupted bedding
-the feldspathic sands are commonly graded
Mineral | Abundance (%) |
---|
muscovite |
Rock Number: 2
-25% exposure is dikes, thicknesses varying from cm's to > metre of highly deformed pegmatite
-bird's foot QZ-MV aggregates common
-BO abundant along margins and as internal foliated masses in dikes
-GR is a rare accessory
Mineral | Abundance (%) |
---|
muscovite |
biotite |
garnet |
Manitoba Geological Survey, 2017