Cross Lake Project (1983-86)


Geologist    P.G. Lenton     Year    84     STATION    5610
EASTING   577850     NORTHING   6062705     ZONE   14     DATUM   NAD83
Date of mapping    07/19/1984

STRUCTURAL DATA

Planar Structures:
Structure type Strike Dip Separation
cataclastic foliation 232 85

PETROLOGIC DATA

Rock Number: 1

Rock Type: tonalite
Descriptors:
augened
leucocratic

Field Description:

-grey white schlieric gneiss showing a recrystallized cataclastic texture
-the rock looks PORT but the 'phenocrysts' are actually microcline augen that are remnants of sheared PGMT veinlets
-there are numerous highly flattened and recrystallizated mafic inclusions
-some reduced to mafic schlieren
-there appears to be only one dominant phase intruded by numerous small pegmatite reduced to felsic schollen

Minerals of Note
Mineral Abundance (%)
biotite
magnetite


Manitoba Geological Survey, 2017