Cross Lake Project (1983-86)

Geologist P.G. Lenton Year 83 STATION 5087
EASTING 568171 NORTHING 6043996 ZONE 14 DATUM NAD83
Date of mapping 07/04/1983

STRUCTURAL DATA

Layering:
Layering type | Strike | Dip | top Direction
bedding | 101 | 67 | N

Dikes and Sills:
Rock Number | Type | Width (m) | Strike | Dip
0 | GRDR | 0.00 | 61 | 61

PETROLOGIC DATA

Rock Number: 1

Rock Type: greywacke
Descriptors:
schistose
psammite
Field Description:

-sandy textured, moderately mafic, probably associated with the volcanics section.
-numerous small garnet - hornblends amphibolite clots
- 80 cm rusty gossan zone within foliation (parallel to layering).
-garnets fractured, highly included with biotite rims.
-layering is quite delicate with "suggestion" of tops overturned, based on grading.
-gossen appears to be associated with a more massive coarse amphibolite. There are several fairly continuous medium grained to pegmatitic granodiorite lit, parallel to bedding.
-pinch and swell and boudinage are common but extensional separation is quite limited.
-there is no evidence of a mobilisate developing in the greywacke

Minerals of Note
Mineral | Abundance (%)
hornblende
biotite
garnet

Manitoba Geological Survey, 2017