Cross Lake Project (1983-86)


Geologist    P.G. Lenton     Year    86     STATION    6355
EASTING   569009     NORTHING   6050435     ZONE   14     DATUM   NAD83
Date of mapping    07/12/1986

STRUCTURAL DATA

Planar Structures:
Structure type Strike Dip Separation
schistosity 282 68

PETROLOGIC DATA

Rock Number: 1

Rock Type: sandstone
Descriptors:
crossbedded
feldspathic

Field Description:

-as previous station, thick beds a metre or more of light grey feldspar rich sand with thin interbeds averaging 15 cm...coarse feldspathic sand and MV knot sand
-bedding is highly disturbed, so crossbeds are recognized only as a series of disjointed fine grained lamination that met at odd angles

Rock Number: 2

Rock Type: pegmatite

Field Description:

-white weathering, foliated, quartz poor peg.
-BO and abundance of cm MV's and numerous TL
-traces of aquamarine apatite
-apatites are unusually blue for such a primative dike
-red GR is a common accessory, closely associated with BO and TL
-GR is rare around MV, where apatite is abundant


Manitoba Geological Survey, 2017