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