Cross Lake Project (1983-86)
Geologist P.G. Lenton
Year 84
STATION 5597
EASTING 580511
NORTHING 6062880
ZONE 14
DATUM NAD83
Date of mapping 07/15/1984
STRUCTURAL DATA
Layering type | Strike | Dip | top Direction |
---|---|---|---|
bedding | 271 | 78 | N |
Structure type | Strike | Dip | Separation |
---|---|---|---|
schistosity | 271 | 78 |
-contact with gossan-volcanic to north, seds to south--volcanic overlies seds (tops unquestionable within 5 m of contact)
PETROLOGIC DATA
Rock Number: 1
-medium grained grey to brown weathering sandstone with light colour felsic fragments and quartz eyes
-forms beds upto 1 m thick and numerous graded trough deposits in siltstone
-most abundant at top near contact and disappears within 40 m down section into SLSN
-sample has siltstone rep-up in it
Rock Number: 2
-as previous
-excellent preservation of sed. structure and soft sed. deformation
Rock Number: 3
-above contact at this locality is interbedded felsic and mafic siltstones, mafic mudstones and mafic volcanoclastics (?) with an upward increase in the number of flows
-the first appearance of mafic rock appears to be a flow at edge of most intense gossan
-it is a massive greenish black layer 2 m thick (sample B)
Rock Number: 4
-Molson 25 cm
- 057/81
Manitoba Geological Survey, 2017