GSC Open File Release Notices

188

Airborne Radioactivity Maps and Profiles, District of Keewatin, N.W.T.

Maps and profiles of radioactivity data obtained with the Geological Survey of Canada airborne gamma-ray spectrometer system relating to the District of Mackenzie, Northwest Territories, covering map sheets Marian River (85N), Wecho River (85 O), Carp lakes (85P) and MacKay lake (75M).

The profile comprises seven contour maps showing total count, uranium, thorium, potassium, U/Th, U/K and Th/K ratios reproduced at a scale of 1:250,000 and profiles showing the radioactivity parameters along the 24 east-west flight lines that were flown at 5 kilometre line spacing, reproduced at a scale of 1:250,000.

The report will be available for inspection from 1:00 p.m. E.S.T. April 8, 1974 (and equivalent local times) at the libraries of the Geological Suvey of Canada and also at the office of the Resident Geologist, Indian and Northern Affairs Department, Box 1500, Yellowknife, N.W.T.

Copies may be obtained at the user’s expense by application to Campbell Quickprint, 85 Sparks Street, Ottawa K1P 5A7, Ontario.

{#805, February 1974 circular}