Author Type

Graduate Student

Date of Award

1976

Document Type

Thesis

Publication Status

Version of Record

Submission Date

October 2026

Thesis/Dissertation Advisor [Chair]

Davidson, J. Blaine

Abstract

Ferromanganese nodules are small, irregular lumps of precipitated metal oxides composed primarily of manganese, iron, copper, cobalt, and nickel which accrete in deep ocean environments. The nodules have mining value and commercial recovery is expected in the near future. As present techniques for the detection and evaluation of ferromanganese nodule deposits are cumbersome and time consuming, an investigation of the specific acoustic impedance of the nodules is conducted in an effort to determine the feasibility of surveying ferromanganese nodule deposits via side-scan sonar techniques. An acoustic transmission line (impedance tube) is utilized to investigate the specific acoustic impedance of the ferromanganese nodule samples. The accuracy of the experimental technique is evaluated using a steel reference cylinder. Results of the tests (on the ferromanganese samples) indicate that the specific acoustic impedance of a typical ferromanganese nodule sample is 2.07 +- .15 x 106 Rayls. Suggestions for future investigations are also presented.

Extent

95 p.

Comments

College of Engineering and Computer Science|Thesis (M.S.E.)--Florida Atlantic University, 1976.|FAU Electronic Theses and Dissertations Collection|College of Engineering and Computer Science

Identifier

FADT13822

Format

pdf

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