Cross Lake Project (1983-86)


Geologist    P.G. Lenton     Year    86     STATION    6178
EASTING   574679     NORTHING   6045333     ZONE   14     DATUM   NAD83
Date of mapping    06/20/1986

STRUCTURAL DATA

Planar Structures:
Structure type Strike Dip Separation
schistosity 332 29

PETROLOGIC DATA

Rock Number: 1

Rock Type: amphibolite
Descriptors:
layered
hornblende bearing

Field Description:

-same amphibolite wacke with foliation parallel to layering as at 6176

Rock Number: 2

Rock Type: gabbro
Descriptors:
massive
melanocratic

Field Description:

-contact with major Molson dike passive contact following joint lines
-no obvious contact metamorphism
-contact parallel to shore of South Bay
-rock has 5 to 8 cm chill zone
-remainder being fine grained metagabbro with 10% 8 mm HB megacrysts


Manitoba Geological Survey, 2017