Cross Lake Project (1983-86)
Geologist P.G. Lenton
Year 86
STATION 6352
EASTING 570062
NORTHING 6049963
ZONE 14
DATUM NAD83
Date of mapping 07/12/1986
STRUCTURAL DATA
Structure type | Strike | Dip | Separation |
---|---|---|---|
schistosity | 96 | 89 |
PETROLOGIC DATA
Rock Number: 1
-light grey, finely bedded on a 1 to 10 cm scale
-many beds are graded from coarse sand and granular size lithic fragments at base to fine sized at top
-mm scale
-parallel lamination is common in non-graded units
-in general, the unit is quite feldspathic, with quartz around 35%
-deformation makes topping direction variable
-appears to be tight isoclinal folding
Rock Number: 2
-1.5 metre dike of more normal composition comprised of coarse graphic MC and grey-white quartz
-abundant very coarse MV in primary assemblege as well as finer grained yellowish-green MV abundantly introduced as a secondary mineral during late migmatite shearing
-shear planes tend to reflect augen like structures
Manitoba Geological Survey, 2017