Errata — ERLIS Data Sets

ERLIS 1031 & 1032

Please note the following correction to the ERLIS announcement in the September 14, 1998, Release Notice regarding Ontario Airborne Magnetic and Electromagnetic Surveys, Processed Data and Derived Products: Archean and Proterozoic "Greenstone" Belts:

• In the table entitled "Greenstone Airborne MAG-EM Surveys and CD-ROMs", the ERLIS numbers listed for the Geraldton-Tashota survey area are incorrect. The correct ERLIS numbers are shown below.

Survey Area	System	Line-km	OGS Map Nos. (Published)	ERLIS CD Numbers
Geraldton-Tashota	AERODAT 4 FREQ.HEM	45,238	81259-81348	1031, 1032

ERLIS 1026

Please note the following correction to the ERLIS announcement in the November 10, 1997, Release Notice regarding Ontario Airborne Magnetic and Electromagnetic Surveys, Processed Data and Derived Products: Archean and Proterozoic "Greenstone" Belts:

• In the table entitled "Greenstone Airborne MAG-EMSurveys and CD-ROMs", some of the OGS map numbers listed for the Uchi-Bruce Lakes survey area are incorrect. The correct map numbers are shown below.

Survey Area	System	Line-km	OGS Map Nos. (Published)	ERLIS Numbers
Uchi-Bruce Lakes	DIGHEM 3 FREQ.HEM	10,409	81638, 81639, 81641, 81643, 81645, 81647, 81649-81669	1026

ERLIS 1017 - 1021

Please note the following corrections to the ERLIS Announcement (May 12, 1997, Release Notice) regarding Ontario Airborne Magnetic and Electromagnetic Surveys, Processed Data and Derived Products: Archean and Proterozoic "Greenstone" Belts:

• Reprocessed and recompiled digital data sets of 5, not 4, airborne magnetic and electromagnetic surveys were released on May 12, 1997. The Kaladar­Marmora survey area should have been included in the list of surveys.
• The Manitou­Stormy survey area system should have read SCINTREX TRIDEM, not KENTING TRIDEM.

For your convenience a correct version of the table is reprinted here:

*Greenstone Belts Airborne MAG-EM Surveys and CD-ROMs

Survey Area	System	Line-km	OGS Map Nos. (Published)	ERLIS Numbers
1. Benny	AERODAT 4 FREQ.	1,590	81538-81542	1017
2. Kaladar-Marmora	KENTING GRADIOMETER	17,327	80613-80712	1018
3. Manitou-Stormy Lakes/td>	SCINTREX TRIDEM	8,576	80458-80479	1019
4. Partridge River	AERODAT 4 FREQ.	4,082	81543-81550	1020
5. Shebandowan	AERODAT 4 FREQ.	22,401	81551-81594	1021

*This project is funded under the Northern Ontario Development Agreement (NODA), a subsidiary agreement of the Canada­Ontario Economic and Regional Development Agreement.