Effect of deposit feeders on migration of137Cs in lake sediments
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In this article, a well-collimated NaI gamma detector scanned each sediment column (∼10 cm deep) at daily or weekly intervals for six months, depicting the time evolution of radioactivity with and without added benthos.About:
This article is published in Earth and Planetary Science Letters.The article was published on 1979-02-01 and is currently open access. It has received 180 citations till now. The article focuses on the topics: Pontoporeia.read more
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Application of Radioactive Fallout Cesium-137 for Measuring Soil Erosion and Sediment Accumulation Rates and Patterns: A Review
TL;DR: In this paper, the authors measured sediment accumulation rates by comparing the vertical distribution of Cs in sediments with the temporal deposition of fallout Cs from the atmosphere to locate sediment horizons, which can be used to determine sediment accumulation rate in a wide variety of depositional environments including reservoirs, lakes, wetlands, coastal areas and floodplains.
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Assessing the toxicity of freshwater sediments
TL;DR: A variety of sediment toxicity tests have been used in assessing toxicant contamination by measuring the bioavailable fraction of the in-place pollutants as mentioned in this paper, and the optimal assays vary with the study and its objectives.
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Heavy metals in the hydrological cycle: Trends and explanation
TL;DR: In this article, a review of the major sources and transport characteristics of heavy metals in the hydrological cycle is presented, showing that heavy metal releases to the environment have changed from 19th and early 20th century production-related activities to consumption-oriented factors in more recent times.
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Nutrient exchange across the sediment-water interface in the Potomac River estuary
TL;DR: The flux of ammonia, phosphate, silica and radon-222 from Potomac tidal river and estuary sediments is controlled by processes occurring at the sediment-water interface and within surficial sediment.
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Partition coefficients for olivine-melt and orthopyroxene-melt systems
TL;DR: In this paper, a large dataset of published and unpublished experimental mineral-melt pairs for compositions in the range komatiite to andesite has allowed the determination of the empirical constants required for this calculation.
References
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Book
The mathematics of diffusion
TL;DR: Though it incorporates much new material, this new edition preserves the general character of the book in providing a collection of solutions of the equations of diffusion and describing how these solutions may be obtained.
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Diffusion of ions in sea water and in deep-sea sediments
Li Yuan-Hui,Sandra Gregory +1 more
TL;DR: The tracer diffusion coefficients of ions in deep-sea sediments, Dj,sed., can be related to Dj∗ by as mentioned in this paper, where θ is the tortuosity of the bulk sediment and a constant close to one.
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Determination of recent sedimentation rates in lake michigan using pb – 210 and cs – 137
TL;DR: In this paper, the use of zloPb and 13'Cs radioactivity measurements to determine the rates of sedimentation in the Great Lakes was described. But the results were limited to eight locations in Lake Michigan.
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Quantitative estimates of biological mixing rates in abyssal sediments
TL;DR: In this article, a time-dependent eddy diffusion model was proposed for biological mixing in deep-sea sediments, where mixing takes place to a depth L at constant eddy diffusivity D.