Chemical diagenesis in Narragansett Bay sediments

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Authors:Elderfield, H.; McCaffrey, R. J.; Luedtke, N.; Bender, M.; Truesdale, V. W.
Author Affiliations:Primary:
Univ. R.I., Grad. Sch. Oceanogr., Kingston, RI, United States
Volume Title:American Journal of Science
Source:American Journal of Science, 281(8), p.1021-1055. Publisher: Kline Geology Laboratory, Yale University, New Haven, CT, United States. ISSN: 0002-9599
Publication Date:1981
Note:In English. 60 refs.; illus. incl. 44 anals., 3 tables, sketch map
Summary:The chemistry of interstitial waters and their spatial and temporal variability are described on the basis of measurement of the concentration of nutrients, sulphur species, iodine, organic materials, sea-salt cations, and metals and the benthic fluxes of nutrients and metals at five sites in the bay area. Oxidation rates of organic matter in the buried sediment vary over about one or two orders of magnitude, and this is directly reflected by spatial variation in interstitial-water profiles over the sediment column as a whole. The spatial variations within the upper zone of the sediment, however, reflect the variability of bioturbation. The diagenetic reactions within the zone control the benthic flux of chemicals into and out of the sediments. [M.S.]
Subjects:Alteration; Anaerobic environment; Biochemical sedimentation; Biogenic structures; Bioturbation; Data; Diagenesis; Estuarine environment; Estuarine sedimentation; Geochemistry; Halogens; Iodine; Marine sediments; Metals; Organic compounds; Pore water; Rates; Sedimentary structures; Sedimentation; Sediments; Sulfur; Trace elements; Trace metals; Narragansett Bay; Rhode Island; United States; North American Atlantic; Organic materials
Coordinates:N412400 N414500 W0712000 W0712500
Abstract Numbers:82M/4403
Record ID:1982006982
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom
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