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Acoustic reflectors in the surface layers of deep sea sediments (1972)

McCann, D. M. ; Dewes, F. C. D.

Springer

Marine geophysical researches 1 (1972), S. 362-380

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Details

ISSN: 1573-0581

Quelle: Springer Online Journal Archives 1860-2000

Thema: Geologie und Paläontologie , Physik

Notizen: Abstract Using ultrasonic scanning it is possible to display the position of an acoustic discontinuity within a sediment core and the amplitude of the reflected signal which results from it. From these results it has been possible to examine the effect of variations in the geotechnical properties on the reflection of compressional waves at normal incidence within the core at a frequency of 100 kHz. The occurrence of acoustic reflectors in the surface layers of North Atlantic sediments has also been examined. Two ultrasonic scanning systems for the non-destructive testing of marine sediment cores have been developed. The performance of the two systems has been evaluated using the results from measurements made on a suite of marine sediment cores from the North Atlantic in conjunction with X-ray scanning and geological analysis of the same cores.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF00286739

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