New Zealand Journal of Marine and Freshwater Research abstracts

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DEVELOPMENT OF A SOUND REFLECTION SYSTEM FOR PROFILING SEDIMENTS IN SHELF AND SLOPE DEPTHS

E. J. Barnes

New Zealand Oceanographic Institute, Department of Scientific and Industrial Research, Wellington

Abstract A sound reflection system for obtaining profiles of sedimentary structures in shelf and slope depths to 500 m has been developed, based on an Edgerton 1 kj boomer as sound source. A logarithmic response receiver allows optimal recording of signals over a wide dynamic range. Penetrations of up to 500 m have been obtained from structures within both unconsolidated sediments and folded lower Tertiary structures. The equipment works reliably at speeds up to 9 knots.

N.Z. Jl mar. Freshwat. Res. 4: 70-86
(Received for publication 27 January 1969)

PDF file of entire paper: medium quality (2186K); (scanned from paper original: notes about this process)

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