Cross Lake Project (1983-86)


Geologist    P.G. Lenton     Year    86     STATION    6549
EASTING   571115     NORTHING   6039528     ZONE   14     DATUM   NAD83
Date of mapping    08/07/1986

STRUCTURAL DATA

Planar Structures:
Structure type Strike Dip Separation
schistosity 61 87
fracture cleavage 337 80
fault 314 82

PETROLOGIC DATA

Rock Number: 1

Rock Type: multi-component schlieric gneiss

Field Description:

-MCSG to MCCG
-zones of cataclasis to NCAR mylonite up to 3 m wide
-dominantly augen TNLT and pegs. but with some camp GRDR(?) sills up to 1 m
-highly flattened inclusions of mass gabbroic ampb (CI=60)

Rock Number: 2

Rock Type: diabase
Descriptors:
schistose
NORT

Field Description:

-40 m Molson--both contacts exposed
-good developement of schistocity, especially in coarser core of dike
-margins show good chills
-hanging wall contact on SE 246 degrees

Minerals of Note
Mineral Abundance (%)
magnetite


Manitoba Geological Survey, 2017