Cross Lake Project (1983-86)
Geologist P.G. Lenton
Year 84
STATION 5452
EASTING 572414
NORTHING 6055164
ZONE 14
DATUM NAD83
Date of mapping 06/23/1984
STRUCTURAL DATA
Layering type | Strike | Dip | top Direction |
---|---|---|---|
bedding | 194 | 85 |
Type | Symmetry | Strike | Dip | Plunge | Azimuth |
---|---|---|---|---|---|
similar fold | S | 209 | 0 | 45 | 22 |
-several general photos to end roll (one photo 2nd or 3rd from end will be black)
-three photos an new roll of Bouma beds
-first sequence has several calc-silicate layers and boudins
PETROLOGIC DATA
Rock Number: 1
-sample a--calcsilicate layer B should be then sectioned-either a Bouma E shale or mylonite (it is in 2nd photo sequence and looks like shale)
-good Burnt wood style turbidites
-Bouma ABE sequences, calcsilicate horizons, psammite and muscovite blastic pelite layers
-large scale folding with disharmonic parasites and abundant ptygmatic folding of injected lit
Rock Number: 2
-variable 5 to 25 % granodiorite and pegmatitic grandiorite injection
-tourmaline rich especially pegmatite material
-tourmaline metasomatism of greywacke on contacts
Mineral | Abundance (%) |
---|
tourmaline |
garnet |
biotite |
Manitoba Geological Survey, 2017