Cross Lake Project (1983-86)


Geologist    P.G. Lenton     Year    86     STATION    6405
EASTING   550727     NORTHING   6025520     ZONE   14     DATUM   NAD83
Date of mapping    07/20/1986

STRUCTURAL DATA

Planar Structures:
Structure type Strike Dip Separation
schistosity 87 81

Dikes and Sills:
Rock Number Type Width (m) Strike Dip
0 quartz vein 0.05 165 74

PETROLOGIC DATA

Rock Number: 1

Rock Type: granite
Descriptors:
seriate porphyritic
biotite

Field Description:

-same coarse BO granite--mottled pink and white with 30% grey quartz
-rare pegmatite patches
-vague schlieren of BO and one of coarse black HB--probably an assimilated gabbro inclusion

Rock Number: 2

Rock Type: tonalite
Descriptors:
augened
hornblende - biotite bearing

Field Description:

-rectangular inclusions of old prophyritic TNLT
-blacks follow a disjointed line across the outcrop in fol. plane


Manitoba Geological Survey, 2017