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RECORD NUMBER: 19 OF 44

OLS Field Name OLS Field Data
Main Title Downcore Variation in Sediment Organic Nitrogen (Journal Version).
Author Fisher, John Berton ; Matisoff, Gerald ; Lick, W. J. ;
CORP Author Case Western Reserve Univ., Cleveland, OH.;Environmental Research Lab., Duluth, MN.
Year Published 1982
Report Number EPA-R-8057160; EPA-600/J-82-361;
Stock Number PB83-243576
Additional Subjects Nutrients ; Sediments ; Metals ; Water pollution ; Nitrogen organic compounds ; Decomposition ; Microorganisms ; Concentration(Composition) ; Chemical reactions ; Mathematical models ; Lake Erie ; Reprints ; Organic loading ; Particulates ; Sediment water interfaces
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NTIS  PB83-243576 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 4p
Abstract An historical record of natural (pre-cultural) and anthropogenic (influenced by man's activities) chemical inputs to the environment is contained in accumulating sediment deposits and is commonly expressed as a depositional flux. This flux is traditionally calculated as the product of the sediment accumulation rate and the concentration of a substance in the sediment. Previous work has quantified depositional fluxes of metals and nutrients by assuming that the vertical distribution of these substances in sediments is unaffected by post-depositional migration, chemical reaction or porosity variations. The authors present here a procedure for calculating the historical depositional flux (loading record) of a substance which undergoes post-depositional chemical reaction in a compacting sediment column. The method is demonstrated by calculating the loading record of organic nitrogen at one locality in Lake Erie. (Copyright (c) Macmillan Journals Ltd., 1982.)
Availability Notes Pub. in Nature 296(5855) p345-347 1982.
NTIS Title Notes Journal article.
Title Annotations Reprint: Downcore Variation in Sediment Organic Nitrogen (Journal Version).
PUB Date Free Form c1982
Category Codes 8H; 68D; 48G
NTIS Prices Not available NTIS
Primary Description 600/03
Document Type NT
Cataloging Source NTIS/MT
Control Number 332921771
Origin NTIS
Type CAT