Cross Lake Project (1983-86)


Geologist    P.G. Lenton     Year    85     STATION    6034
EASTING   576849     NORTHING   6044951     ZONE   14     DATUM   NAD83
Date of mapping    06/13/1985

STRUCTURAL DATA

Planar Structures:
Structure type Strike Dip Separation
schistosity 272 37

Dikes and Sills:
Rock Number Type Width (m) Strike Dip
0 pegmatite 0.00 82 51

-peg. intrudes amphibolite sequence that appears to be derived from mafic volc. and volcanogenic sediments
-Peg parallel fabric in amphibolite
-unit dips opposite way; it is planar and largely undeformed

PETROLOGIC DATA

Rock Number: 1

Rock Type:

Field Description:

-25 cm dike of brick red to orange feldspar, KF>> PG, QZ, TL
-no MV visable
-no unusual minerals
-check Anderson for chemistry, looks fairly primative and may belong to Periterite Bay group
-if PB dikes follow the same eastward differentiation, then this would be the most developed of the barren peristerite zone dikes
-samples contain KF that could be separated for analysis if necessary


Manitoba Geological Survey, 2017