Cross Lake Project (1983-86)
Geologist P.G. Lenton
Year 86
STATION 6347
EASTING 571019
NORTHING 6050078
ZONE 14
DATUM NAD83
Date of mapping 07/12/1986
STRUCTURAL DATA
Structure type | Strike | Dip | Separation |
---|---|---|---|
schistosity | 76 | 88 |
PETROLOGIC DATA
Rock Number: 1
-ultra coarse, BO-PGMT
-MV minor phase
-no GR or TL visable
-large pods of blocky non-graphic microcline up to 50 cm across
-blocky pods are floating in ultra-coarse BO-GRNT containing 15 to 40 cm graphic mega
-rare patches of med. grained GRNT probably analygous to the apatite phase
-very coarse BO is aligned on the SC probably indicating crystallization in the stressed field
Rock Number: 2
-inclusions representing 25 % of exposure of quartz rich BO greywacke
50 to 55 % quartz
-no MV in units
-minor BO selvages 2 mm thick on contacts with PGMT
-SC in inclusions parallels the pegmatite SC
-bedding 30 to 50 cm with some internal layering on cm scale
-generally parallel laminae variety
Manitoba Geological Survey, 2017