Cross Lake Project (1983-86)


Geologist    P.G. Lenton     Year    86     STATION    6474
EASTING   545645     NORTHING   6022556     ZONE   14     DATUM   NAD83
Date of mapping    07/26/1986

STRUCTURAL DATA

Planar Structures:
Structure type Strike Dip Separation
schistosity 47 75

-McRitchie must have stopped here--fresh sample spots all over outcrop

PETROLOGIC DATA

Rock Number: 1

Rock Type: granodiorite
Descriptors:
schlieric or schlieren present
biotite

Field Description:

-main rock is the WJC style GRDR
-this seems to past date of grey-beige fine grained GRDR (sample b) which intruded gabbro and is included in coarse GRDR
-the gabbro is mainly included in peg. + pegmatitic leuco GRDR

Rock Number: 2

Rock Type: gabbro
Descriptors:
megacrystic
leucocratic
anorthositic

Field Description:

-agmatite of leuco gabbro and anorthesite in largely pegmatitic rocks
-60% of exposure gabbro


Manitoba Geological Survey, 2017