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