Accession Number : ADA186582

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

Descriptive Note : Annual rept. Oct 86-Sep 87,

Corporate Author : COLORADO UNIV AT BOULDER

Personal Author(s) : Andrews, John T

PDF Url : ADA186582

Report Date : 26 Sep 1987

Pagination or Media Count : 8

Abstract : Piston cores from fiords along the eastern margin of Baffin Island, NWT 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.

Descriptors :   *SEDIMENTATION, *SEDIMENTS, BAFFIN ISLAND, CORES, EAST(DIRECTION), FJORDS, FLUX(RATE), GRAIN SIZE, GREENLAND, ICE, MINERALOGY, PISTONS, RADIOCARBON DATING, RATES, SCALE, SHEETS, SOURCES, TIME, CONTINENTAL SHELVES, OCEAN BOTTOM, CORE SAMPLING

Subject Categories : Physical and Dynamic Oceanography

Distribution Statement : APPROVED FOR PUBLIC RELEASE