Cross Lake Project (1983-86)

Geologist P.G. Lenton Year 86 STATION 6392
EASTING 569860 NORTHING 6042321 ZONE 14 DATUM NAD83
Date of mapping 07/31/1986

STRUCTURAL DATA

Planar Structures:
Structure type | Strike | Dip | Separation
schistosity | 344 | 53 |

Linear Structures
Type | Plunge | Azimuth
boudin axis | 58 | 86

-this outcrop adn north flanked TNLT seem to be a slightly younger outcrop
-north flank was peristerite and called unit 9c by rousell

PETROLOGIC DATA

Rock Number: 1

Rock Type: tonalite
Descriptors:
porphyritic
biotite
Field Description:

-light grey white weathering med. grained TNLT --> GRDR
-variable 1 to 2% white MC megacrysts
-GR maybe assoc. with margins or near the margins of the in situ developed pegmatites
-fabric is shown by weak BO-foliation and quartz aggregate alignment
-appears to be the same unit as on north flank in SW Spod. Bay--young 'club' TNLT

Minerals of Note
Mineral | Abundance (%)
garnet

Rock Number: 2

Rock Type: amphibolite
Descriptors:
layered
basaltic composition
Field Description:

-mass. black HB-BO ampb with numerous deformed 'lit' of TNLT and old pegmatite
-minor epitotized layering
-probably a deformed basalt
-doesn't look particularly sedimentary

Manitoba Geological Survey, 2017