Cross Lake Project (1983-86)


Geologist    P.G. Lenton     Year    84     STATION    5527
EASTING   568582     NORTHING   6052260     ZONE   14     DATUM   NAD83
Date of mapping    07/01/1984

STRUCTURAL DATA

Planar Structures:
Structure type Strike Dip Separation
schistosity 255 81

PETROLOGIC DATA

Rock Number: 1

Rock Type: pyroxenite
Descriptors:
massive

Field Description:

-most of island on west side is coarse pyroxenite Molson phase
-eastern contact with GRNT not exposed
-around 55 m exposed
-coarse 2 pyroxene ultramafic, high MG altered to hornblendite

Minerals of Note
Mineral Abundance (%)
magnetite

Rock Number: 2

Rock Type: granite
Descriptors:
aplitic

Field Description:

-more 5525 style gr. granite
-has looks like layered granite, aplite, pegmatite
-sample saccharoidal leuco-granite
-I will return later and spend more time

Minerals of Note
Mineral Abundance (%)
garnet


Manitoba Geological Survey, 2017