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RECORD NUMBER: 455 OF 631

OLS Field Name OLS Field Data
Main Title Recent Sulfur Enrichment in the Sediments of Little Rock Lake, Wisconsin.
Author Baker, L. A. ; Engestrom, D. R. ; Brezonik, P. L. ;
CORP Author Minnesota Univ., St. Paul. Water Resources Research Center. ;Minnesota Univ., Minneapolis.;Corvallis Environmental Research Lab., OR.
Publisher c1992
Year Published 1992
Report Number EPA/600/J-92/415;
Stock Number PB93-135721
Additional Subjects Acidification ; Little Rock Lake ; Sediments ; pH ; Sampling ; Fishes ; Aquatic plants ; Chemical properties ; Sulfur ; Sulfates ; Accumulation ; Zooplankton ; Diagenesis ;
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB93-135721 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/12/1993
Collation 16p
Abstract Multiple sediment cores collected from Little Rock Lake, Wisconsin, prior to experimental acidification show that total sulfur accumulation rates increased during the past century, with most of the increase occurring in the chromium-reducible (CRS) and organic fractions. The increased sulfur accumulation is a result of diagenetic processes within the sediments, rather than changes in seston deposition rates or terrestrial inputs. The enrichment has occurred because atmospheric sulfate deposition rates have increased over the past century, resulting in increased lakewater sulfate concentrations. This has increased the diffusional flux to the sediments and increased the extent of diagenetic immobilization. Individual cores had markedly different sulfur accumulation rates, demonstrating the importance of collecting multiple cores to determine lakewide sediment flux.
Supplementary Notes Pub. in Limnology and Oceanography, v37 n4 p689-702 1992. See also PB87-179966. Prepared in cooperation with Minnesota Univ., Minneapolis. Sponsored by Corvallis Environmental Research Lab., OR.
NTIS Title Notes Journal article.
Category Codes 68D; 48G
NTIS Prices PC A03/MF A01
Primary Description 600/02
Document Type NT
Cataloging Source NTIS/MT
Control Number 305028252
Origin NTIS
Type CAT