Sediment Flux in a Fiord/Shelf Transect of an Ice-Dominated Continental Margin.

Abstract

Piston cores from fiords along the eastern margin of Baffin Island, N>W>T> are being studied in order to compute variations in sediment flux on time scales of decades to thousands of years. Radiocarbon dates indicate that the sedimentation rates in outer basins range, on average, between 20-50cm/THAT'S NUMBER: 1 (NOT ALPHA)ka. The cores extend back to ca. 10 ka, or earlier, and provide possible analogs for conditions around the present day Greenland Ice Sheet. Grain size, grain shape and mineralogical studies are being carried out in order to evaluate down fiord variations in sediment source and sedimentation processes.

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Document Details

Document Type
Technical Report
Publication Date
Sep 26, 1987
Accession Number
ADA186582

Entities

People

  • John T. Andrews

Organizations

  • University of Colorado Boulder

Tags

DTIC Thesaurus Topics

  • Baffin Island
  • Classification
  • Compilers
  • Earth Sciences
  • Fourier Analysis
  • Geological Phenomena
  • Geological Surveys
  • Glaciers
  • Grain Size
  • Greenland
  • Ice
  • Islands
  • Power Spectra
  • Security
  • Sedimentation
  • Sedimentology
  • Sediments

Readers

  • Geotechnical Engineering.
  • Polar and Arctic Studies