Cross Lake Project (1983-86)


Geologist    P.G. Lenton     Year    86     STATION    6463
EASTING   547514     NORTHING   6023651     ZONE   14     DATUM   NAD83
Date of mapping    07/26/1986

STRUCTURAL DATA

Planar Structures:
Structure type Strike Dip Separation
schistosity 65 83

PETROLOGIC DATA

Rock Number: 1

Rock Type: gabbro
Descriptors:
megacrystic
leucocratic

Field Description:

-slight increase in HB matrix
-fewer of large megas--extensive areas of packed 1 cm PH?? in black HB matrix
-fabric very weak
-no layering apparent

Rock Number: 2

Rock Type: gabbro
Descriptors:
massive
mesocratic

Field Description:

-20 cm dike (?)
-wanders along outcrop
-appears to be synmagmatic-possibly a feeder dike in the chamber


Manitoba Geological Survey, 2017