Cross Lake Project (1983-86)


Geologist    P.G. Lenton     Year    86     STATION    6249
EASTING   557753     NORTHING   6035109     ZONE   14     DATUM   NAD83
Date of mapping    06/27/1986

STRUCTURAL DATA

Layering:
Layering type Strike Dip top Direction
mylonitic layering 62 0

Planar Structures:
Structure type Strike Dip Separation
cataclastic foliation 59 78

PETROLOGIC DATA

Rock Number: 1

Rock Type: granodiorite
Descriptors:
augened
biotite

Field Description:

-looks like the seriate GRDR
-in places it weathers grey-white and looks to be TNLT, but in general it is mottled pink and grey
-fabric variable from augen cataclasite to fol. GRDR

Rock Number: 2

Rock Type: gabbro
Descriptors:
schistose
hornblende-chlorite

Field Description:

-10% of exposure variable textures of gabbro from leucogabbro as next step to metagabbro (sample)
-inclusions (definitly) are highly deformed on margins but cores are just fol. (although severly in some metagabbro)
-metamorphic layering (GRNT lit) abundant in GRDR but generally don't penetrate gabbro


Manitoba Geological Survey, 2017