Cross Lake Project (1983-86)

Geologist P.G. Lenton Year 85 STATION 6033
EASTING 573414 NORTHING 6057814 ZONE 14 DATUM NAD83
Date of mapping 06/12/1985

STRUCTURAL DATA

PETROLOGIC DATA

Rock Number: 1

Rock Type:
Field Description:

-peg. 40---map and description (see field notes for map)
PHOTOS
1. Western termination of dike
2. Coarse Tourmalization of sandstone at contact
3. Coarse Columnar TL at 90 degree contact
4. Isolated quartz pods at 34 west
-Slightly undulator near vertical
-average 1.5 m thick, highly KF rich dike
-no primary muscovite at all
-beryls clear and colourless to pale milky greenish white
-laellingite as seams 1 to 2 mm thick and up to 10 cm long
-intruded into grey quartz rich laminated sandstones
-several gossans (discontinuous) on south side
ZONING:
-highly irregular
-thin border (3 to 5 mm) of grey plag. + TL
-rest is KF, QZ, BE, TL, GR, sulpbasalt, intermediate zone with irregular cores of blocky pink MC with rare quartz pods (see map in field notes)
-extensive exomorphic tourmalinization halo up to 75 cm (15 ave)
-beryl in minor intermediate at edge of blocky zone with a preference for being near massive quartz

Manitoba Geological Survey, 2017