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