Cross Lake Project (1983-86)


Geologist    P.G. Lenton     Year    86     STATION    6424
EASTING   563120     NORTHING   6044750     ZONE   14     DATUM   NAD83
Date of mapping    07/21/1986

STRUCTURAL DATA

Planar Structures:
Structure type Strike Dip Separation
cataclastic foliation 34 59

PETROLOGIC DATA

Rock Number: 1

Rock Type: gneiss
Descriptors:
cataclastic
biotite

Field Description:

-quartz=20%
-grey weathering with considerable decrease in vol. of megacrysts
-much closer to a TNLT comp. than previous stations
-still heavily sheared outcrop is cut by numerous BO-bearing pegmatites with abundant magnetite
-these are only slightly affected by shearing
-MV is a significant feature of this intrusive and wasn't noted in previous megacrystic GRDR adn doesn't appear to be restricted to foliation plane and is primary, not alteration

Minerals of Note
Mineral Abundance (%)
muscovite


Manitoba Geological Survey, 2017