GSC Open File Release Notices

Archived information

The text below is an exact reproduction of the original release notice, which was often unilingual.  It contains information that is not readily available elsewhere.  The information on pricing and availability is out of date.

Release Notice Text

OPEN FILES 269, 270, 271

Airborne Radioactivity Maps and Profiles

Contour maps and profiles of radioactivity data obtained with the GSC airborne gamma-ray spectrometer system, comprising seven contour maps at a scale of 1:250 000 showing total count, uranium, thorium and potassium concentrations and U/Th, U/K and Th/K ratios, and profiles of the seven radioactivity parameters for the areas.

These three files will be available for inspection in Ottawa from 1:00 p.m. D.S.T. on June 21, 1975 (and equivalent local times at other GSC Libraries). They will also be available for examination at the offices indicated.

O.F. 269

Prince Edward Island, NTS 11L and part of 21I. 25 flight lines flown in an east-west direction at 5 km spacing. Dept. of Industry & Commerce, 180 Kent Street, Charlottetown, Prince Edward Island.

O.F. 270

Burin Peninsula, south of 47º15’N; part of NTS 1M. 9 flight lines flown in an east-west direction at 5 km spacing. St. George Basin, part of NTS 12B. 16 fight lines flown in an east-west direction at 2 km spacing. 800 line kilometres of survey data collected on two flights across Newfoundland. Mineral Development Division, Dept. of Mines and Energy, 95 Bonaventure Avenue, St. John’s, Newfoundland.

O.F. 271

Havre-St-Pierre, Quebec NTS 12L. 18 flight lines flown in an east-west direction at 5 km spacing. Johan Beetz area, within Havre-St-Pierre sheet. 32 flight lines in an east-west direction at 1 km spacing. Direction de la géologie, ministère des Richesses naturelles, 1620 boul. de l’Entente, Québec 6, Québec.

Copies of these files are available at user’s expense by application to:

K.G. Campbell Corporation Limited

880 Wellington Street

City Centre

Ottawa, Ontario

K1R 6K7

O.F. 269 - $17.95

O.F. 270 - $21.50

O.F. 271 – Price not available. Express Collect. Payment required.


{#821, May 1975 circular}


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