Cross Lake Project (1983-86)


Geologist    P.G. Lenton     Year    86     STATION    6237
EASTING   558702     NORTHING   6032769     ZONE   14     DATUM   NAD83
Date of mapping    06/26/1986

STRUCTURAL DATA

PETROLOGIC DATA

Rock Number: 1

Rock Type: granodiorite
Descriptors:
seriate porphyritic
biotite

Field Description:

-slightly less sheared, excellent preservation of the zoning in plagioclase phenocrysts up to 5 cm across
-interestingly enough, the rock is also microcline megacrystic, although the population of microcline MEGA is smaller in number and in size
-plag. zonation often indicated by quartz and BO


Manitoba Geological Survey, 2017