Cross Lake Project (1983-86)

Geologist P.G. Lenton Year 83 STATION 5141
EASTING 574773 NORTHING 6040502 ZONE 14 DATUM NAD83
Date of mapping 07/15/1983

STRUCTURAL DATA

Planar Structures:
Structure type | Strike | Dip | Separation
gneissosity | 235 | 82 |

-small rusty pyrite pyrrhotite bearing gossen from 30 to 100 cm wide in the plane of the foliation

PETROLOGIC DATA

Rock Number: 1

Rock Type: two component schlieric gneiss - intimate mixture of 2 major units
Field Description:

-20% young porphyritic grey granodiorite, abundant schollen inclusions and biotite schlieren

Rock Number: 2

Rock Type: greywacke
Descriptors:
layered
hornblende - garnet bearing
Field Description:

-delicately laminated mafic volcanic derived wacke, has thin amphibolitic horizons with epidote pods

Rock Number: 3

Rock Type: basalt
Descriptors:
massive
hornblende - diopside bearing
Field Description:

-mafic greenish black weathering, looks like a massive flow
-no layering visable

Textural Features
Type | Mineral | Min. Size | Max. Size | Abundance (%) | Unit
mafic mineral | hornblende | 0.0 | 0.0 | 65.0 | %

Manitoba Geological Survey, 2017