Cross Lake Project (1983-86)


Geologist    P.G. Lenton     Year    83     STATION    5190
EASTING   573336     NORTHING   6057665     ZONE   14     DATUM   NAD83
Date of mapping    08/07/1983

STRUCTURAL DATA

Planar Structures:
Structure type Strike Dip Separation
schistosity 241 68
schistosity 315 84
fracture cleavage 171 68

-foliations 1&2 form a north trending S intersection plunging about 60 degree, that corresponds to an alignment of microcline phenocrysts
-foliation 3 is the late brittle fabric

PETROLOGIC DATA

Rock Number: 1

Rock Type: granite
Descriptors:
porphyritic
biotite - muscovite bearing

Field Description:

-contains approximately 20 % equant pink feldspar phenocrysts
-also contains rare quartz eye phenocrysts
-there are numerous zones of alteration along fractures marked by planar 1 to 5 cm regions of coarser granitic matierial

Minerals of Note
Mineral Abundance (%)
magnetite


Manitoba Geological Survey, 2017