Cross Lake Project (1983-86)

Geologist P.G. Lenton Year 86 STATION 6319
EASTING 566803 NORTHING 6048018 ZONE 14 DATUM NAD83
Date of mapping 07/09/1986

STRUCTURAL DATA

Planar Structures:
Structure type | Strike | Dip | Separation
schistosity | 291 | 28 |

PETROLOGIC DATA

Rock Number: 1

Rock Type: granodiorite
Descriptors:
schlieric or schlieren present
leucocratic
Field Description:

-White weathering, medium grained, quartz rich, peristerite GRDR
-very vague BO schlieren and numerous white pegmatitic lee give the outcrop a layered appearance
-has tiny red disseminated, HB patches 1 cm across, probably part of the peristerite complex, but this is not a unit I have encountered before
-a white quartz rich PGMT contain Gr
-BO is the only mafic
-in general, this rock is whiter and more leucocratic than any other unit in this complex
-it has a very slight tendancy towards porphyritic
-slight dissemination of white phenocrysts up to 6 mm

Manitoba Geological Survey, 2017