Cross Lake Project (1983-86)

Geologist P.G. Lenton Year 84 STATION 5535
EASTING 569434 NORTHING 6054083 ZONE 14 DATUM NAD83
Date of mapping 07/05/1984

STRUCTURAL DATA

Planar Structures:
Structure type | Strike | Dip | Separation
schistosity | 239 | 77 |

Linear Structures
Type | Plunge | Azimuth
rodding | 69 | 333

-cataclasis much less pronounced, largely restricted to greywacke inclusions
-granitic still retains good euhedral phenocryst form

PETROLOGIC DATA

Rock Number: 1

Rock Type: granite
Descriptors:
schistose
muscovite microcline
Field Description:

-coarse white seriate GRNT containing phenocrysts ranging from 4 mm to 5 cm in size
-minor traces of molybolinite
-numerous schlieren probably derived from pelitic gneiss
-70% of outcrop is granite
-numerous 1 to 5 mm rusty patches, occasionally with white sulfide in core
-some minor patchy, almost miarobitic development of pegmatite

Minerals of Note
Mineral | Abundance (%)
molybdenite

Rock Number: 2

Rock Type: greywacke
Descriptors:
layered
psammitic
Field Description:

-30% highly deformed and boudinaged inclusions of Burntwood style greywacke
-summits containing CLCC inclusions are dominant
-pelitic layers largely reduced to schlieren
-thin biotite selvages form along contact of granites
-pelitic inclusions largely consist of felted muscovite and sillmanite

Manitoba Geological Survey, 2017