Results 241 to 250 of about 2,012,555 (297)
Journal of Hazardous Materials, 2012 Heavy metal removal using nano zero-valent iron (NZVI) has drawn growing attention due to the ease of application and high removal efficiency. However, uncertainties regarding its fate and transport in subsurface environments have raised concerns that ...
Ke Yin, Irene M C Lo, Haoran Dong
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1994
The concept of sedimentary environment encompasses the entire complex of physical, chemical, and biological materials and processes involved from the time sediments are formed to the time they are examined. Thus, in addition to depositional setting, the tectonic setting, climate, provenance, postdepositional (diagenetic) conditions, and late-stage ...
Douglas W. Lewis, David McConchie
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The concept of sedimentary environment encompasses the entire complex of physical, chemical, and biological materials and processes involved from the time sediments are formed to the time they are examined. Thus, in addition to depositional setting, the tectonic setting, climate, provenance, postdepositional (diagenetic) conditions, and late-stage ...
Douglas W. Lewis, David McConchie
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Mercury Speciation in Sediments of a Tropical Coastal Environment
Environmental Technology, 2002The speciation of mercury in tropical coastal areas, although scarcely studied, has presented an odd behaviour when compared with the results obtained in temperate environments. In this work, we measured the concentrations of mercury species (mercuric mercury, methyl-mercury and dimethyl-mercury) in the sediments of Sepetiba Bay (Brazil) and compared ...
Wasserman, J.C. +3 more
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Environment of Sediment Deposition
2017Grain size of sediments relates to the physical characteristics of the depositional environments. The distribution of sediment grain size is affected by the variations of wave energy and turbulent conditions of depositing environment. Linear Discriminate Analysis (LDA) technique and bi-variate plotting of grain size parameters are used to explain and ...
Swapan Kumar Maity, Ramkrishna Maiti
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Geochemical Environments of Precambrian Sedimentation
Lithology and Mineral Resources, 2020Distribution of carbonate sediments of different composition in the Precambrian section is reviewed. It is shown that calcium carbonates prevailed in the Archean–initial Early Proterozoic, and iron carbonates dominated in the banded iron formations. Dolomites and magnesites were more widespread in the Proterozoic.
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Sediment Budgets in Cold Environments
Zeitschrift für Geomorphologie, Supplementary Issues, 2013submission Abstracts (1-2 pages of text, without illustration) must be submitted electronically (word attachment) to armelle.sedibud@gmail.com. Please indicate if you prefer presenting your work as a talk or a poster during the workshop. Deadlines Expression of interest deadline is May 10th, 2010, by providing the title of your presentation.
Armelle Decaulne +3 more
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Environment in Sedimentation and Stratigraphy
Geological Society of America Bulletin, 1931Introduction It has long been known that adaptation is the key to the distribution of organisms; they are the resultants of the long sequence of environmental factors to which they and their ancestors have been exposed. That fact is and has long been well known.
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Science of The Total Environment, 2020
Sediment bulking is intently related to the occurrence of black water agglomerate, sediment resuspension and erosion in aquatic environments. In this study, five different lake sediments were sampled to study effects of sediment characteristics on sediment bulking and then investigate how sediment bulking affected in turn sediment physicochemical ...
Chunliu Wang +4 more
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Sediment bulking is intently related to the occurrence of black water agglomerate, sediment resuspension and erosion in aquatic environments. In this study, five different lake sediments were sampled to study effects of sediment characteristics on sediment bulking and then investigate how sediment bulking affected in turn sediment physicochemical ...
Chunliu Wang +4 more
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A Model for the Analysis of Environments of Sedimentation
The Journal of Geology, 1954The paper presents a model which is intended to serve as an organizational framework for quantitative analysis of environments of sedimentation. The parameters of sediments are treated as a special case. An example is given in which several proposed environments of sedimentation are tested statistically in terms of sediment size parameters.
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Sediment Transfer in Upland Environments
2001This chapter contains section titled:IntroductionUpland Slope ProcessesPeriglacial ActivityAeolian ProcessesMining ImpactsUpland Sediment ...
Higgitt, David L. +2 more
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