Cross Lake Project (1983-86)

Geologist P.G. Lenton Year 86 STATION 6519
EASTING 582672 NORTHING 6064767 ZONE 14 DATUM NAD83
Date of mapping 08/02/1986

STRUCTURAL DATA

Planar Structures:
Structure type | Strike | Dip | Separation
cataclastic foliation | 61 | 83 |

-note this outcrop is highly sheared so I have no idea how much bed thickness attenuation has happened to bed thickness, it is relative for comparison only

PETROLOGIC DATA

Rock Number: 1

Rock Type: siltstone
Descriptors:
laminated
quartz-muscovite
Field Description:

-grey quartz rich phyllitic schist - probably a siltstone
-occurs as beds up to 1 m thick
-Dense layers of knotted MB - may have had aluminosilicate

Rock Number: 2

Rock Type: conglomerate
Descriptors:
cataclastic
polymictic
Field Description:

-sheared C.L.G. poly conglomerate in 1 to 3 m beds
-rusty grey weathering
-identifiable clasts: quartz pebbles, white tonalite, felsic volcanic, ampb (2mm x 20 cm) and pick clasts (dominant type?)
-largest clasts are grey to white TNLT
-some clasts may have been high level feld. porphyry

Minerals of Note
Mineral | Abundance (%)
garnet

Rock Number: 3

Rock Type: sandstone
Descriptors:
crossbedded
feldspathic
Field Description:

-light grey sandstone - massive beds 2 to 4 m thick
-traces of highly flattened cross beds.

Manitoba Geological Survey, 2017