Cross Lake Project (1983-86)

Geologist P.G. Lenton Year 84 STATION 5638
EASTING 570147 NORTHING 6048824 ZONE 14 DATUM NAD83
Date of mapping 07/23/1984

STRUCTURAL DATA

Planar Structures:
Structure type | Strike | Dip | Separation
schistosity | 73 | 66 |

Linear Structures
Type | Plunge | Azimuth
mineral lineation | 0 | 0

-LINEATION: pitch 57 degrees east in the foliation, HB elongation

PETROLOGIC DATA

Rock Number: 1

Rock Type: volcaniclastic
Descriptors:
schistose
mafic
Field Description:

-highly foliated patchy HB bearing seds. probably derived from volcanics
-discontinuous layering, numerous small epidote pods, and sheared quartz CO3 veins

Rock Number: 2

Rock Type: greywacke
Descriptors:
schistose
mafic
Field Description:

-massive units up to 2 and 1/2 m thick of grey, HB bearing, poorly laminated psammite
-homogenous, equigranular, and numerous sheared out quartz veins

Minerals of Note
Mineral | Abundance (%)
hornblende

Rock Number: 3

Rock Type: tonalite
Descriptors:
schistose
leucocratic
Field Description:

-colour index = 3
-small sheared dikes intruding sediments, highly discontinuous, chopped up in foliation
-they seem to increase in abundance towards the south

Manitoba Geological Survey, 2017