Cross Lake Project (1983-86)

Geologist P.G. Lenton Year 84 STATION 5686
EASTING 573121 NORTHING 6049129 ZONE 14 DATUM NAD83
Date of mapping 07/29/1984

STRUCTURAL DATA

-DIKE A-9
-revisited the Spod. dike to look at structure of main dike and beryl-Spod dike in back of bay
-white beryl dike in back of bay is a series fold keels
-fold axis is 11/281
-border-wall adn intermediate zones (lower) once exposed in synformal keels.
-axial surface is near vertical (probably parallel to foliation at 267/84
-beryl concentrated near base
-most MC has been albitized and spod alteration to yellow lithian?? MV

PETROLOGIC DATA

Rock Number: 1

Rock Type: pegmatite
Field Description:

SD - SPODUMENE
Dike A-9
Re-visited the spodumene dike to look at the structure of the main dike and the beryl-spodumene dike in the back of the bay.
The white beryl dike in the back of the bay is a series of fold keels. Fold axis is 11/281.
Border - wall and intermediate zones (lower) are exposed in synformal keels. Axial surface is near vertical (probably parallel to foliation at 267/84).
Beryl is concentrated near the base. Most microcline has been albitized and spodumene altered to yellow lithian muscovite.

Minerals of Note
Mineral | Abundance (%)
beryl
spodumene

Manitoba Geological Survey, 2017