Cross Lake Project (1983-86)


Geologist    P.G. Lenton     Year    84     STATION    5491
EASTING   576593     NORTHING   6041943     ZONE   14     DATUM   NAD83
Date of mapping    06/28/1984

STRUCTURAL DATA

Planar Structures:
Structure type Strike Dip Separation
schistosity 61 79

-chose since last station augen GRDR with varying proportions of volcanic and gabbroic rock
-photos of agmatite of ultramafics in GRDR

PETROLOGIC DATA

Rock Number: 1

Rock Type: granodiorite
Descriptors:
augened
biotite

Field Description:

-at this location there is 20+ m exposure of ultramafic agmatitized in augen GRDR

Rock Number: 2

Rock Type: picrite

Field Description:

-agmatized inclusions vary from leuco gabbro of peridotite and possible picrite
-sample of most mafic possible picrite
-most agmatite is dilational explosion type

Minerals of Note
Mineral Abundance (%)
chlorite
hornblende
pyroxene


Manitoba Geological Survey, 2017