Cross Lake Project (1983-86)

Geologist    P.G. Lenton     Year    84     STATION    5423
EASTING   568573     NORTHING   6043593     ZONE   14     DATUM   NAD83
Date of mapping    06/17/1984

STRUCTURAL DATA

Planar Structures:
Structure type Strike Dip Separation
schistosity 293 82
fault 232 71

-cataclastic direction; also direction of 1 m Molson Dike

PETROLOGIC DATA

Rock Number: 1

Rock Type: gneiss
Descriptors:
mafic

Field Description:

-most of island is a mass of volcanic amph. with dikes of intrusive
-most is a laminated but 2 layers around 2 m thick look like they were pillowed

Minerals of Note
Mineral Abundance (%)
garnet

Rock Number: 2

Rock Type: granodiorite
Descriptors:
pegmatitic

Field Description:

-pegmatitic patch grey white leuco-granodiorite
- muscovite in late secondary
-largely sheared anastomosing stringer system
-probably syn-intrusive derived pegmatites

Minerals of Note
Mineral Abundance (%)
garnet
muscovite

Manitoba Geological Survey, 2017