Accession Number:

ADA165308

Title:

Geological and Geochemical Analysis of Seabed Stability at the Norfolk Ocean Disposal Site. Part 1: Geological Analysis.

Descriptive Note:

Final rept. for period ending 30 Sep 82,

Corporate Author:

OLD DOMINION UNIV NORFOLK VA DEPT OF OCEANOGRAPHY

Personal Author(s):

Report Date:

1983-05-31

Pagination or Media Count:

84.0

Abstract:

The seabed at the Norfolk Disposal Site NDS was analyzed to characterize its present stability. Geochemical Sampling and Analytical Methods used included Bathemetric projection, box core retrieval and procressing, x-ray radiography, grain size analysis, textural analyses and composite analysis of seabed stability. General findings of this survey indicate that NDS does not have a spatially and temporarily homogeneous seabed with respect to stability. The surfaces of pinnacles on ridges may be unstable during the most quiescent summer periods. Fine grained material winnowed from these areas apparently migrates down slope and accumulates in the relatively deep and shielded areas between ridges. Therefore, as winnowed areas, ridges and pinnacles tend to become coarser and deep areas tend to become finer.

Subject Categories:

  • Physical and Dynamic Oceanography
  • Geology, Geochemistry and Mineralogy
  • Soil Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE