Cross Lake Project (1983-86)

Geologist P.G. Lenton Year 84 STATION 5480
EASTING 578333 NORTHING 6062092 ZONE 14 DATUM NAD83
Date of mapping 06/27/1984

STRUCTURAL DATA

Planar Structures:
Structure type | Strike | Dip | Separation
schistosity | 228 | 87 |

-photos of IRFM

PETROLOGIC DATA

Rock Number: 1

Rock Type: gabbro
Field Description:

-majority of outcrop is fine grained mafic rock--little textural variation, could be massive basalt but I think it is a fine grained phase of the gabbro with alteration veins

Rock Number: 2

Rock Type: iron formation
Descriptors:
banded
silicate facies
Field Description:

-NW edge of outcrop is banded silicate facies iron formation with siliceous layers and layers of massive magnetite
-probably an inclusion sliver on edge of gabbro
-there appear to be inclusion of iron formation in gabbro upto 2 or 3 m from contact

Manitoba Geological Survey, 2017