Cross Lake Project (1983-86)

Geologist    P.G. Lenton     Year    83     STATION    5017
EASTING   567793     NORTHING   6043963     ZONE   14     DATUM   NAD83
Date of mapping    06/19/1983

STRUCTURAL DATA

Layering:
Layering type Strike Dip top Direction
metamorphic layering 78 64

Dikes and Sills:
Rock Number Type Width (m) Strike Dip
2 pegmatite 1.00 340 45

PETROLOGIC DATA

Rock Number: 1

Rock Type: amphibolite
Descriptors:
layered
hornblende-plagioclase bearing
epidosite

Field Description:

-probably volcanic amphibolite with epidosite layers-may have been pillowed
-heavily oxidized gossan zone
-sample B from oxidized gossan

Minerals of Note
Mineral Abundance (%)
garnet

Rock Number: 2

Rock Type: pegmatite
Descriptors:
dike
granitic
1 metre wide

Field Description:

-simple biotite dike with margin-orientated growth of biotite and microcline
-feldspars 3-15 cm
-irregular deformed-approx. orientation 340/45
-has penetrative fabric parallel to foliation

Minerals of Note
Mineral Abundance (%)
biotite
potassium feldspar

Manitoba Geological Survey, 2017