Cross Lake Project (1983-86)

Geologist P.G. Lenton Year 83 STATION 5003
EASTING 572239 NORTHING 6046560 ZONE 14 DATUM NAD83
Date of mapping 06/17/1983

STRUCTURAL DATA

Layering:
Layering type | Strike | Dip | top Direction
bedding | 293 | 66 |

PETROLOGIC DATA

Rock Number: 1

Rock Type: wacke
Descriptors:
layered
mafic
finely laminated
calc-silicate mineral/concretion
Field Description:

-Good para-amphibolite material. Thought at first could be highly stretched basalt as at Pipestone Lake but it is continuous in layering on outcrop scale (>100m)
-Layered at 0.5 to 5 cm with fine internal laminations
-Extensive boudinage of mafic layers and quartz veins
-Rare calcsilicate diopside-plagioclase layers.

Minerals of Note
Mineral | Abundance (%)
diopside
plagioclase

Rock Number: 2

Rock Type: granite
Weathered colour: light beige to buff brown
Fresh colour: grey
Descriptors:
aplitic
leucocratic
grey to buff
Field Description:

-1 m. dike of grey (buff weathering) aplitic granite parallel to layering
-possibly not dike but sand layer, but not likely

Textural Features
Type | Mineral | Min. Size | Max. Size | Abundance (%) | Unit
mafic mineral |  | 0.0 | 0.0 | 1.0 | mm

Manitoba Geological Survey, 2017