Cross Lake Project (1983-86)


Geologist    P.G. Lenton     Year    84     STATION    5616
EASTING   578995     NORTHING   6065625     ZONE   14     DATUM   NAD83
Date of mapping    07/19/1984

STRUCTURAL DATA

Planar Structures:
Structure type Strike Dip Separation
gneissosity 61 79

PETROLOGIC DATA

Rock Number: 1

Rock Type: granodiorite
Descriptors:
porphyritic
biotite - magnetite bearing

Field Description:

-grey buff weathering slightly richer in quartz
approx. 40%
-probably contained HB retrograded to B
-as there are numerous small 1 to 2 mm BO clots
-shear fabri more intense

Rock Number: 2

Rock Type: amphibolite
Descriptors:
massive
hornblende bearing

Field Description:

-probably a VOLV MASS flow or some such(?)
-fine grained sugary texture with POIK HB's


Manitoba Geological Survey, 2017