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  The information on pricing and availability is out of date.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


Airborne Radioactivity Maps and Profiles

Ground and airborne gamma-ray spectrometry, stream sediment and soil geochemistry investigations of Paleozoic uranium-copper mineralization in the Ottawa-Arnprior area, Ontario (NTS 31 F/8, E/½; 31 G/5, W/½) by B.W. Charbonneau, I.R. Jonasson, P.B. Holman and K.L. Ford. The file consists of:

Seven contour maps (scale 1:250 000) showing total count, uranium, potassium and thorium and U/Th, U/K and Th/K ratios determined by airborne gamma-ray spectrometry.

Profiles of airborne spectrometry data at a scale of 1: 250 000.

A geochemical uranium map (1:50 000) derived from stream sediment analysis.

A geological compilation map showing locations of known mineralization (1: 50 000).

Contour maps of ground gamma-ray spectrometric data (total count K, U, Th, U/Th, Th/K) and geochemical data (U, Cu, Mo, Zn) at a scale of 1 inch to 800 feet covering an exposure of U-Cu mineralization west of South March, Ontario.

This file will be available for inspection in Ottawa from 1:00 p.m. D.S.T. on May 20, 1975 (and equivalent local times at other G.S.C. libraries), and also Mines Library, Ontario Ministry of Natural Resources, Parliament Buildings, Toronto.

Prints may be obtained for $55.00 Express Collect on application to K.G. Campbell Corporation, 880 Wellington Street, Ottawa, Ontario K1R 6K7. Prepayment required.


{#820, April 1975 circular}


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