Cross Lake Project (1983-86)


Geologist    P.G. Lenton     Year    86     STATION    6233
EASTING   559430     NORTHING   6032493     ZONE   14     DATUM   NAD83
Date of mapping    06/26/1986

STRUCTURAL DATA

Planar Structures:
Structure type Strike Dip Separation
cataclastic foliation 221 79

PETROLOGIC DATA

Rock Number: 1

Rock Type: gneiss
Descriptors:
augened
tonalitic

Field Description:

-waxy-grey, metamorphically layered, old grey TNLT (as previous station)
-metamorphic layering, highly deformed and folded, then extensivly sheared

Rock Number: 2

Rock Type: pegmatite
Descriptors:
massive
granodiorite

Field Description:

-bulk of outcrop is a snowy white weathering quartz, oligoclase, microcline pegmatite with just a trace of BO
-it post dates most of the shearing and lies within the shear plane, but does have a pronounced CT fabric
-it is unzoned with MEGA extending from margin to margin
-inclusions of TNLT show moderate solisification


Manitoba Geological Survey, 2017