Cross Lake Project (1983-86)

Geologist P.G. Lenton Year 84 STATION 5553
EASTING 573458 NORTHING 6046815 ZONE 14 DATUM NAD83
Date of mapping 07/07/1984

STRUCTURAL DATA

Planar Structures:
Structure type | Strike | Dip | Separation
cataclastic foliation | 281 | 58 |

PETROLOGIC DATA

Rock Number: 1

Rock Type: granodiorite
Descriptors:
augened
biotite - chlorite bearing
Field Description:

-sample duplicates for analysis
-pervasive cataclastic fol. with scattered 1 cm mylonite seams
-quartz 30%
-may have been feld. porphyry
-not same unit as WJC or CWB intrusives
-clean, no inclusions or schlieren
-white quartz veins with blocky to smoky margins
-rare veinlets of pink feldpar and quartz (not really pegmatitic) upto 5 cm

Rock Number: 2

Rock Type: aplite
Descriptors:
cataclastic
granitic
Field Description:

-looks like pink leuco-aplite dike around 55 cm wide
-cross cuts foliation but is foliated in same direction-ie it intruded during cataclasis

Manitoba Geological Survey, 2017