Cross Lake Project (1983-86)


Geologist    P.G. Lenton     Year    83     STATION    5138
EASTING   574957     NORTHING   6040944     ZONE   14     DATUM   NAD83
Date of mapping    07/15/1983

STRUCTURAL DATA

Planar Structures:
Structure type Strike Dip Separation
gneissosity 71 84

Dikes and Sills:
Rock Number Type Width (m) Strike Dip
0 pegmatite 0.15 171 45

Minor Folds
Type Symmetry Strike Dip Plunge Azimuth
similar fold Z 62 50 8 63

Linear Structures
Type Plunge Azimuth
mineral lineation 33 209

-pegmatite veins have trace of quartz-tourmaline intergrowth

PETROLOGIC DATA

Rock Number: 1

Rock Type: granodiorite
Descriptors:
schlieric or schlieren present

Field Description:

-slightly less of porphyritic (augen) character that normal
-very little grey granodiorite

Rock Number: 2

Rock Type: amphibolite
Descriptors:
layered
hornblende - diopside bearing

Field Description:

-looks like mafic wacke with some vuggy amphibolite layers and hornblendic layers
-dominantly mafic hornblende psammite.


Manitoba Geological Survey, 2017