Cross Lake Project (1983-86)


Geologist    P.G. Lenton     Year    86     STATION    6111
EASTING   563310     NORTHING   6044156     ZONE   14     DATUM   NAD83
Date of mapping    06/13/1986

STRUCTURAL DATA

Planar Structures:
Structure type Strike Dip Separation
schistosity 351 68

-3 PHOTOS general outcrop appearance, 1 Jenpeg GS, 1 ATC, 2 augen texture

PETROLOGIC DATA

Rock Number: 1

Rock Type: tonalite
Descriptors:
augened
biotite

Field Description:

-less obvious now whether these augen are sheared pegs. or porphyroblasts---now I think it may be a combination of both
-many have obvious affinities to peg. stringers but others are .5 to 1cm MC crystals randomly scattered in a fine to mud grained grey TNLT matrix
-slightly schlieric

Rock Number: 2

Rock Type: amphibolite

Field Description:

-waxey grey BO amphibole
-heavily assimilated--may have had HB
-no obvious genesis-could be red, volcanic or leuc. DORT
-5 cm x >2 m


Manitoba Geological Survey, 2017