Cross Lake Project (1983-86)


Geologist    P.G. Lenton     Year    86     STATION    6286
EASTING   568223     NORTHING   6047674     ZONE   14     DATUM   NAD83
Date of mapping    07/04/1986

STRUCTURAL DATA

Planar Structures:
Structure type Strike Dip Separation
schistosity 297 58

PETROLOGIC DATA

Rock Number: 1

Rock Type: amphibolite
Descriptors:
layered
hornblende - biotite bearing

Field Description:

-layered greenish grey and black ampb.
-not volcanic-probably volcanic derived mafic wackes
-cut by late red pegs following a general 050 degree trend but deformed and folded by the 297 fabric
-small mafic dike(?)-not Molson-probably old diabase association with old mafic intrusive complex
-bedding is thin to laminated and at a low angle to shearing as then 5 mm buds are continuous for 2 to 3 m before being disrupted by fabric


Manitoba Geological Survey, 2017