Cross Lake Project (1983-86)
Geologist P.G. Lenton
Year 84
STATION 5524
EASTING 568462
NORTHING 6051564
ZONE 14
DATUM NAD83
Date of mapping 07/01/1984
STRUCTURAL DATA
Layering type | Strike | Dip | top Direction |
---|---|---|---|
bedding | 281 | 80 |
-photos
- 1 to 3 contact of Molson dike
- 4 cumulate layered zone of Molson
- 5 to 7 faserkeisel beds with ST in CORE and GR in core
PETROLOGIC DATA
Rock Number: 1
-feldspathic sandstones with MV, GR
-very large knots of SM and/or PG and/or MV containing MV or ST or GR or TL m centres
-some may be large PG-QZ knots
-not same unit as across channel
-numerous pegmatitic stringers and quartz stringers parallel to foliation and layering
-numerous minor S folds with very shallow around 10 degree, plunge around 267 degrees
Mineral | Abundance (%) |
---|
staurolite |
sillimanite |
muscovite |
Rock Number: 2
-18 m of HB blastic amphibolitic sed. similar to #5522
-vague lamination for 20 cm near contact, otherwise massive
Rock Number: 3
-large Molson dike running parallel to shore at 205/54
-approximately 10 m exposed to water line
-unusual in that this body is highly magnetic
SAMPLE
A -chilled contact
B -magnetite gabbro around 5 metres up
C -cumulate layered with DP, OPX, Mag. and poss. olivine pseudomorphs
Mineral | Abundance (%) |
---|
enstatite |
magnetite |
diopside |
Manitoba Geological Survey, 2017