Cross Lake Project (1983-86)


Geologist    P.G. Lenton     Year    86     STATION    6252
EASTING   556828     NORTHING   6033887     ZONE   14     DATUM   NAD83
Date of mapping    06/27/1986

STRUCTURAL DATA

Planar Structures:
Structure type Strike Dip Separation
cataclastic foliation 62 51

PETROLOGIC DATA

Rock Number: 1

Rock Type: granodiorite
Descriptors:
seriate porphyritic
biotite

Field Description:

-unit 9d
-quartz 30%
-upto 25% phenos
-up to 6 cm
-zoning abundant but it is apparent here that zoning is growth rims of fluid inclusions and inclusions in K-spar
-all are perthitic, grey brown to mottled pink with QZ-PG-BO inclusions marking growth rings, not chem., zones
-plag. is snow white, albite twinned, inclusion free and ranges from 2 to 5 mm size but never the cm size megacrysts
-this is a GRDR near GRNT, not a TNLT


Manitoba Geological Survey, 2017