Cross Lake Project (1983-86)


Geologist    P.G. Lenton     Year    83     STATION    5060
EASTING   562942     NORTHING   6054622     ZONE   14     DATUM   NAD83
Date of mapping    06/24/1983

STRUCTURAL DATA

Planar Structures:
Structure type Strike Dip Separation
schistosity 58 35

Dikes and Sills:
Rock Number Type Width (m) Strike Dip
3 diabase 0.15 223 66

PETROLOGIC DATA

Rock Number: 1

Rock Type: tonalite
Descriptors:
megacrystic
HBPG

Field Description:

Runs all along this shore with complex multi-component schlieric gneis to the north in the bush.
Entire shore appears to be a strike unit.

Rock Number: 2

Rock Type: multi-component schlieric gneiss
Descriptors:
schlieric or schlieren present
tonalitic
granodioritic

Field Description:

-Sample is of a 4 x 2 m raft of hornblende-biotite amphibolite that is completely included within the schlieric gneiss

Rock Number: 3

Rock Type: diabase
Descriptors:
dark green
black
Molson dike
massive
fine grained

Field Description:

Sample bridges the entire width of the dyke


Manitoba Geological Survey, 2017