Cross Lake Project (1983-86)


Geologist    P.G. Lenton     Year    86     STATION    6462
EASTING   547986     NORTHING   6023985     ZONE   14     DATUM   NAD83
Date of mapping    07/26/1986

STRUCTURAL DATA

Planar Structures:
Structure type Strike Dip Separation
schistosity 242 90

PETROLOGIC DATA

Rock Number: 1

Rock Type: gabbro
Descriptors:
megacrystic
leucocratic

Field Description:

-same bimodal HB matrix anorthosite gabbro as at 6411+6412
-whole outcrop gabbro except for 1 m dike of schlieric GRDR that looks like WJC (CI=5, Quartz 25
-buff equant plag. in quartz
-rare crosscutting white quartz-rich pegs.
with BO only
-major in bimoidal size distribution 1-2 cm and 6-20 cm

Minerals of Note
Mineral Abundance (%)
hornblende


Manitoba Geological Survey, 2017