Cross Lake Project (1983-86)

Geologist P.G. Lenton Year 86 STATION 6125
EASTING 559615 NORTHING 6025954 ZONE 14 DATUM NAD83
Date of mapping 06/14/1986

STRUCTURAL DATA

Planar Structures:
Structure type | Strike | Dip | Separation
schistosity | 335 | 71 |
schistosity | 52 | 68 |
fault | 335 | 62 | dextral

-5 mm moderatly silicified psuedotachylite with epidote alteration, fault offset 1 m

PETROLOGIC DATA

Rock Number: 1

Rock Type: granodiorite
Descriptors:
augened
biotite
Field Description:

-(augen GRDR) seriate(?) trimcoal distribution or pinkish grey lath-shaped microclines and distributed in 5 mm, 10 m and 15 mm ranges
-matix is uniform mm. grain size megacryst augenment is in older F1 plane crossed by younger 050 direction producing dominantly similar folds
-maybe trace (z-assymetric) of HB, roughly retrograded to BO

Rock Number: 2

Rock Type: tonalite
Descriptors:
augened
biotite
Field Description:

-augen TNLT
-old base rock for MG complex largely reduced to nebulitic schlieren
-identifiable inclusions represent <5% of exposure
-sparsity of young peg. at location

Manitoba Geological Survey, 2017