Accession Number:

ADA300851

Title:

Augmentation of Studies into the Development and Evolution of Sedimentary Structures.

Descriptive Note:

Annual progress rept.,

Corporate Author:

STATE UNIV OF NEW YORK AT STONY BROOK MARINE SCIENCES RESEARCH CENTER

Report Date:

1995-01-01

Pagination or Media Count:

12.0

Abstract:

Sedimentological studies were conducted in central Eckernfoerde Bay. Sediment is characterized by beds of clay-sized material, with slightly coarser laminations approx. 10 silt and sand. Excess 234Th activity indicates that mixing is limited to the upper 5 mm of the seabed. Accumulation rates, measured by 210Pb geochronology, range from 5 to over 10 mmyr. The relatively high accumulation rates and absence of a significant mixed layer in the central bay allow fluctuations of sedimentological processes to be recorded in fine detail. Sediment-transport studies indicate that the laminated bedding is caused by alternating deposition of storm-suspended sediments from adjacent shallow-water areas and fair-weather supply of fine suspended material advected from the open Baltic.

Subject Categories:

  • Physical and Dynamic Oceanography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE