Cross Lake Project (1983-86)

Geologist P.G. Lenton Year 86 STATION 6300
EASTING 570214 NORTHING 6048099 ZONE 14 DATUM NAD83
Date of mapping 07/07/1986

STRUCTURAL DATA

Planar Structures:
Structure type | Strike | Dip | Separation
cataclastic foliation | 276 | 74 |

PETROLOGIC DATA

Rock Number: 1

Rock Type: sandstone
Descriptors:
cataclastic
mafic
Field Description:

-grey weathering with dark grey fresh surface
-highly deformed mafic greywacke with some ill defined layers of lithic wacke
-rare coarse sand horizons a few cm's thick
-bedding may have been in a general WS direction but is so chapped up in the fol. it is impossible to be sure
-outcrop 70% homo-equi wacke, QZ rich coarse sand layers
-Sample A wacke
-Sample B lithic wacke

Minerals of Note
Mineral | Abundance (%)
hornblende
biotite

Rock Number: 2

Rock Type: diabase
Descriptors:
schistose
hornblende - biotite bearing
Field Description:

-3 dikes in the fol. plane of old deformed and metamorphosed fine grained mafic intrusive
-cuts the early deformation in the wackes but is deforme
-not Molson--part of Pipestone Group

Manitoba Geological Survey, 2017