Cross Lake Project (1983-86)

Geologist P.G. Lenton Year 84 STATION 5591
EASTING 580337 NORTHING 6062849 ZONE 14 DATUM NAD83
Date of mapping 07/15/1984

STRUCTURAL DATA

Layering:
Layering type | Strike | Dip | top Direction
bedding | 271 | 72 | N

Planar Structures:
Structure type | Strike | Dip | Separation
schistosity | 76 | 79 |
cataclastic foliation | 21 | 75 |

-discrete offsets
-2 photos soft sed. deformation
-1 photo delicate cross beds

PETROLOGIC DATA

Rock Number: 1

Rock Type: siltstone
Descriptors:
laminated
felsic
Field Description:

-laminated siltstones in 1 to 10 cm with mm-scale internal laminations
-quite silicious
-no quartz eyes
-1 to 2 mm MV blasts
-lots of soft sediment deformation
-very delicate sed. structures perfectly preserved

Minerals of Note
Mineral | Abundance (%)
muscovite

Rock Number: 2

Rock Type: amphibolite
Descriptors:
massive
hornblende bearing
Field Description:

-mafic layers along shore line
-very irregular and discontinuous
-seems to love absorbed much of stress in system and is chopped up badly
-discordant-probably mafic dike

Manitoba Geological Survey, 2017