Cross Lake Project (1983-86)


Geologist    P.G. Lenton     Year    86     STATION    6337
EASTING   574247     NORTHING   6049685     ZONE   14     DATUM   NAD83
Date of mapping    07/10/1986

STRUCTURAL DATA

Planar Structures:
Structure type Strike Dip Separation
schistosity 87 59
fracture cleavage 201 63

-stump joint/shear slt.

PETROLOGIC DATA

Rock Number: 1

Rock Type: granite
Descriptors:
massive
leucocratic

Field Description:

-good sample of adamellite for analysis including REE
-very leucocratic with 1/10% BO + .5% MV
-dissemination of pinkish re 1 to 2 mm GR
-TL particularly abundant in pegs. that cut outcrop but is also dissemination in granite
-One strong joint altered?? but otherwise outcrop is massive
-pegs not common in NS plane
-granite is quartz rich - 35 to 40 % but pegs are feldspathic with 5 to 15 % free quartz

Minerals of Note
Mineral Abundance (%)
muscovite
tourmaline
garnet
biotite


Manitoba Geological Survey, 2017