Cross Lake Project (1983-86)


Geologist    P.G. Lenton     Year    83     STATION    5035
EASTING   570039     NORTHING   6041390     ZONE   14     DATUM   NAD83
Date of mapping    06/22/1983

STRUCTURAL DATA

Layering:
Layering type Strike Dip top Direction
bedding 7 76

-injection complex
-main rock type amphibolite. but highly injected and torn apart by TCSG (Two Componernt Schlieric Gneiss)
- up to 30 to 40% in places

PETROLOGIC DATA

Rock Number: 1

Rock Type: amphibolite
Descriptors:
layered
hornblende - diopside bearing
possible flow
possible volcaniclastic rock

Field Description:

-probable mix of extrusive basic volcanic and volcaniclastic sediments
-Layering too continuous in places to be all deformed pillows or such

Rock Number: 2

Rock Type: two component schlieric gneiss - intimate mixture of 2 major units
Descriptors:
gneissic
leucocratic
sill
1 to 1.5 metres wide
weakly cataclastic

Field Description:

-concordant sills averaging 1 to 1.5 m
-cataclasis minor feature


Manitoba Geological Survey, 2017