Cross Lake Project (1983-86)

Geologist P.G. Lenton Year 84 STATION 5637
EASTING 570385 NORTHING 6048940 ZONE 14 DATUM NAD83
Date of mapping 07/23/1984

STRUCTURAL DATA

Planar Structures:
Structure type | Strike | Dip | Separation
cataclastic foliation | 271 | 70 |

Dikes and Sills:
Rock Number | Type | Width (m) | Strike | Dip
0 | Molson dike | 0.00 | 207 | 77

Linear Structures
Type | Plunge | Azimuth
rodding | 61 | 51

-variable thickness of dike to 1 m, non magnetic Molson

PETROLOGIC DATA

Rock Number: 1

Rock Type: volcaniclastic
Descriptors:
cataclastic
mafic
Field Description:

-moderately sheared volcanic derived seds comprising mixed basalt andesite material
-thin remnants of felsic silts and a lite grey weathering plag quartz HB matrix material
-epidote pods are common
-shearing probably took place at high angle to layering so all beds disrupted and rotated into foliation
-the original rock was probably an interlayered series of mafic mudstones and siltstones, poss. with some thin mafic conglom. horizons
-there may have been basaltic flows within sed. section as there are relativly well preserved massive amphibolite layers

Minerals of Note
Mineral | Abundance (%)
garnet

Manitoba Geological Survey, 2017