Cross Lake Project (1983-86)


Geologist    P.G. Lenton     Year    84     STATION    5520
EASTING   567939     NORTHING   6050509     ZONE   14     DATUM   NAD83
Date of mapping    07/01/1984

STRUCTURAL DATA

Layering:
Layering type Strike Dip top Direction
bedding 329 40

Planar Structures:
Structure type Strike Dip Separation
schistosity 329 40

PETROLOGIC DATA

Rock Number: 1

Rock Type: basalt
Descriptors:
pillowed

Field Description:

-lightly deformed hornblende-epidote layered amphibolite
-layering ptygmatically folded and boudinaged by a steeply dipping (?) 049 degree plane
-beds of pillowed basalts are .2 to 4 m thick separated by 1 to 2 metre massive layers

Rock Number: 2

Rock Type: ULMF
Descriptors:
massive
actinolite - chlorite rich

Field Description:

-bright blackish green featureless unit-definitly looks ULMF--resembles mafic CGLM-sed. at east end of Spod. Island but has no clasts or layering
-four layers present in basalt--2 at 3 to 4 m and 2 at .5 m

SAMPLE
A -massive unit
B -from deeply weathering layer that has rusty grey knots in it
C -same as B but has knts visable


Manitoba Geological Survey, 2017