Cross Lake Project (1983-86)


Geologist    P.G. Lenton     Year    86     STATION    6309
EASTING   566086     NORTHING   6048582     ZONE   14     DATUM   NAD83
Date of mapping    07/08/1986

STRUCTURAL DATA

Planar Structures:
Structure type Strike Dip Separation
cataclastic foliation 50 83

PETROLOGIC DATA

Rock Number: 1

Rock Type: amphibolite
Descriptors:
layered
hornblende - biotite bearing

Field Description:

-grey weathering with dark grey fresh surface sandy texture
-layering present is imposed by shearing
-probably derived from lower cycle mafic seds.
-probably contained minor amount of PY?? but all remains are small hematitic vugs and coatings on cleavage surfaces

Rock Number: 2

Rock Type: pegmatite

Field Description:

-rusty weathering pinkish pegmatites sheared and folded by movement
-quartz poor with large white slightly opalescent microclines
-maybe very nearly moonstone
-garnets are restricted to the core and are 1 to 2 cm

Minerals of Note
Mineral Abundance (%)
garnet


Manitoba Geological Survey, 2017