Cross Lake Project (1983-86)


Geologist    P.G. Lenton     Year    86     STATION    6217
EASTING   564397     NORTHING   6030440     ZONE   14     DATUM   NAD83
Date of mapping    06/25/1986

STRUCTURAL DATA

Planar Structures:
Structure type Strike Dip Separation
cataclastic foliation 40 73

PETROLOGIC DATA

Rock Number: 1

Rock Type: granodiorite
Descriptors:
cataclastic
gneiss / gneissic

Field Description:

-cata. GRDR gneiss
-complex shear that seems to be dominantly the augen GRDR as previous outcrop but contain several other components as both inclusions and later intrusions of CWB GRDR
-inclusions comprise a variety of old mafic rock including gabbro porphyroclastic anorthosite (see sample 2A) and coarse HB TNLT
-this rock looks like old augen TNLT but is well preserved and weakly-foliated between two cataclastic mylonite horizons

Rock Number: 2

Rock Type: tonalite

Field Description:

-sample 2C HB TNLT incl.

Minerals of Note
Mineral Abundance (%)
hornblende


Manitoba Geological Survey, 2017