Cross Lake Project (1983-86)
Geologist P.G. Lenton
Year 83
STATION 5008
EASTING 568282
NORTHING 6044947
ZONE 14
DATUM NAD83
Date of mapping 06/18/1983
STRUCTURAL DATA
Structure type | Strike | Dip | Separation |
---|---|---|---|
schistosity | 59 | 62 | |
cataclastic foliation | 40 | 75 |
Rock Number | Type | Width (m) | Strike | Dip |
---|---|---|---|---|
0 | GRDR | 0.25 | 274 | 71 |
-BO-KF-QZ-MV: late dike with minor deformation
-age relationships not as obvious but I'll still say GRDR is younger intrusive into an already gneissic TNLT
PETROLOGIC DATA
Rock Number: 1
-both units have feldspar phenocrysts but might be best to say megacrytic tonalite
Type | Mineral | Min. Size | Max. Size | Abundance (%) | Unit |
---|---|---|---|---|---|
mafic mineral | 0.0 | 0.0 | 3.0 | mm | |
phenocryst | plagioclase | 0.0 | 0.0 |
Rock Number: 2
-as before but much less abundant phenocrysts <1 % of rock
Type | Mineral | Min. Size | Max. Size | Abundance (%) | Unit |
---|---|---|---|---|---|
mafic mineral | 0.0 | 0.0 | 15.0 | mm | |
phenocryst | plagioclase | 0.0 | 0.0 | 1.0 |
Manitoba Geological Survey, 2017