Single master gravity and aeromagnetic data for Ontario

Gravity and aeromagnetic contains ground field reading of gravity strengths and airborne surveys of magnetic strengths from across the province of Ontario.

Beginning in 1947, systematic aeromagnetic surveys were conducted over the whole of Ontario. The surveys were performed for the Geological Surveys of Canada and the Ontario Department of Mines and completed in 1987. Also beginning in 1947, ground gravity data were collected across Ontario by Federal-Provincial programs and external initiatives.

Digital gravity data were provided by Geodetic Survey Division, Geomatics Canada, Natural Resources Canada and Ontario Geological Survey.

Survey Parameters:
Line spacing: 800 m (half-mile)
Magnetic survey type: total field
Magnetometer height: 300 m (1000 ft)
Gravity survey: yes
No. of gravity stations: 55639

This data is best viewed using Google Earth or similar Keyhole Markup Language (KML) compatible software. For instructions on how to use Google Earth, read the Google Earth tutorial.

[ft]: feet [KML]: Keyhole Markup Language *[m]: metre

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Data Available

The data described here is available for you to use. [Learn more]
[See the licence for how you're allowed to use this data.]

1947-10-10 - 1987-12-31

Supporting Files

This dataset has no supporting files

Additional Info

Field Value
Geographic coverage Ontario
Geography Breakdown None
Source URL/Address
Author Email
Maintainer branch
Last Validated Date 2012-10-10
Update frequency Never
Access instructions