Cross Lake Project (1983-86)


Geologist    P.G. Lenton     Year    84     STATION    5408
EASTING   576292     NORTHING   6060835     ZONE   14     DATUM   NAD83
Date of mapping    06/13/1984

STRUCTURAL DATA

Planar Structures:
Structure type Strike Dip Separation
schistosity 48 86

PETROLOGIC DATA

Rock Number: 1

Rock Type: conglomerate
Descriptors:
polymictic

Field Description:

-markedly more heterolithic congl. breccia
-significant % of the clast are mafic and many ultramafic
-is definately a clast supported unit, containing interstices between large clasts filled by largely sed. derived lithic fragments
-clast types include unit 1 tonalite, grey feldspar porphyry, gray siltstone, beige quartzite; hornblendite, laminated greywacke;but quartz pegmatite, to name just a few
-deformation is extreme, with stretching and rotating
-no sedimentary structures, like bedding present
-there are minor interbeds of quartz poor feldspathic wacke

Minerals of Note
Mineral Abundance (%)
garnet


Manitoba Geological Survey, 2017