Accession Number : AD0631146

Title :   CHARACTERIZATION OF PARTICULATE MATTER IN THE OCEAN.

Descriptive Note : Final rept.,

Corporate Author : NAVAL RESEARCH LAB WASHINGTON D C

Personal Author(s) : Birks,L. S. ; Grosso,J. S. ; Labrie,R. J. ; Sandelin,J. W. ; Nagel,D. J.

Report Date : 18 MAR 1966

Pagination or Media Count : 21

Abstract : Electron micrographs of ocean filtrates collected near the surface at Key West, Block Island, and Chesapeake Bay show three common constituents: diatoms, plant fibers, and amorphous organic matter. In addition, material collected from layers giving strong sonar reflection at Key West and Block Island show numerous smaller iron-rich particles, probably a hydrated iron oxide, in the size range 0.01 to 0.1 micron. The iron particles are too small for x-ray diffraction but can be examined by x-ray fluorescence and electron probe analysis. In addition to iron, the particles show no other elements above atomic number 22, at least not above 1 percent composition. (Author)

Descriptors :   (*SONAR SIGNALS, REFLECTION), (*SEA, PARTICLES), ELECTRON MICROSCOPY, X-RAY, ELECTRON BEAMS, FLUORESCENCE, PLANKTON, PLANTS(BOTANY), ORGANIC MATERIALS, IRON

Subject Categories : Physical and Dynamic Oceanography
      Acoustic Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE