Cross Lake Project (1983-86)


Geologist    P.G. Lenton     Year    85     STATION    6005
EASTING   576257     NORTHING   6045356     ZONE   14     DATUM   NAD83
Date of mapping    06/07/1985

STRUCTURAL DATA

Planar Structures:
Structure type Strike Dip Separation
cataclastic foliation 302 60

-conceivable that grey porphyry and pink GRNT are both FL bearing and sourced from the same body but the grey porphyry is an early high level phase intruded en mass by the pink GRNT

PETROLOGIC DATA

Rock Number: 1

Rock Type: granite
Descriptors:
augened
biotite-feldspar rich

Field Description:

-has much of previous stations characteristics.
-abundant FL, Feld. augens, and higher mafic content but at same time the groundmass is coarser quartz increased to 30 %
-colour, distinct pinkish red
-main visual difference from pink granite is higher mafic content


Manitoba Geological Survey, 2017