8-21-06

Any archaeological fieldwork in Ontario (including sidescan survey) requires a licence issued under the Ontario Heritage Act. (for the proposed survey near Caribou Island).

Marine Archaeologist
Ministry of Culture
400 University Avenue, 4th Floor
Toronto, Ontario M7A 2R9
Tel. 416.314.7154
Fax 416.314.7175

Side Scan Sonar:
Side scan sonar is a method of underwater imaging using narrow beams of acoustic energy (sound) transmitted out to the side of the towfish and across the bottom. Sound is reflected back from the bottom and from objects to the towfish. The data is then sent via a cable to a topside computer where it is processed and turned into a image. This system is useful in mapping the sea floor.

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