Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 15 of 15 for “"sediment analysis"”.
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Strandline and Sediment Analysis of Stump Lake Area, Nelson County, North Dakota
… The project included mapping, leveling, and analysis of strandlines and their sediments.</p>
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A multi-proxy approach to investigating the latest Holocene (~4,500 yrs. BP) vegetational history of Catahoula Lake, Louisiana
<p>A multi-proxy investigation of sediments examined from Catahoula Lake, Louisiana has provided a record of late-Holocene vegetational changes, related to both hydrology and climate. This study integrates data from phytoliths, pollen, stable isotopes, magnetic susceptibility, and core sediment …
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Sedimentology and Shallow Groundwater Responses of a Coastal Marsh Along a Salinity Gradient: A Case Study In Grand Bay National Estuarine Research Reserve, Mississippi
… factors affecting marsh hydrology, including sediment composition, seasonal variability, and coastal storms in Grand Bay National Estuarine Research Reserve (NERR) near Pascagoula, Mississippi. Analysis of sediment includes color, organic matter, carbonate, magnetic susceptibility, and …
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Studies of sediments in a tidal environment
Five sedimentary environments in Plymouth Sound, S.W. England, are defined by side-scan sonar surveys calibrated by direct sampling by SCUBA divers: (i) uniform mud depocentres, (ii) areas of continual sediment reworking, (iii) areas of relict sedimentation, (iv) areas of episodic deposition and, …
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Development of an inline cleaning procedure and a concentration method for analyzing low levels of organophosphate flame retardants and plasticizers in sediment
… flame retardants and plasticizes (OPFPs) during sediment analysis, an inline cleaning procedure was developed to clean materials (extraction cell, glass fiber filters, diatomic earth, and aluminum oxide) involved in sediment extraction using pressurized liquid extraction (PLE). The materials …
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Understanding the dynamics of a mixed sand and gravel coastline: a multi-method approach.
… interactions of the underlying geology, bimodal sediment size distribution and great alongshore variability in the physical settings even within relatively short distances (~300 m) and has been historically impacted by short-term, focused erosion events occurring over 100-200 m of the beach …
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A Geoarchaeological Investigation of Storage and Surplus at Tel Tsaf, Israel
… of both floral and faunal goods. Microscopic sediment analysis was used to investigate these questions, and the results are discussed in relation to the big picture debates of the Chalcolithic period. Micromorphology and bulk sediment samples were taken from Building Complexes I, II and IV …
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OPTIMIZING DIAGNOSTIC ACCURACY IN CANINE URINARY TRACT INFECTIONS: FUTURE DIRECTIONS TO REDUCE ANTIMICROBIAL MISUSE IN VETERINARY PRACTICE
… overview of canine UTIs, the work presents an analysis of the International Society for Companion Animals Infectious Diseases (ISCAID) guidelines, a document that provides the foundation for standardized classification, diagnosis, and treatment of canine and feline UTIs in veterinary medicine. …
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Sedimentological Characteristics and 3-D Internal Architecture of Washover Deposits from Hurricanes Frances, Ivan, and Jeanne
… the spatial depositional patterns and internal sedimentary architecture of fresh washover deposits resulting from inundation to collision regime overwash events. Sedimentological characteristics and 3-D internal architecture of the washover deposits were studied through coring, trenching, …
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Nano- to catchment-scale investigations of metal transport processes in mining-impacted river systems
… of Wemyss and Graiggoch Mines (central Wales). Sediment geochemistry and metal content were characterised and combined with river catchment geomorphological descriptions to identify areas of metal storage. A multi-tracer approach, which combined continuous tracers with slug (gulp) injections, …
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Assessment of road pollutants in roadside retention ponds.
… 13 μg/L and 0.13 – 4.6 × 102 μg/kg in water and sediment respectively which was suitable to determine most chemicals below their predicted no effect concentration (PNEC). A low-cost 24-hour sampling device, which minimised the usage of plastic and water volume to be transported, was developed to …
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MERCURY IN BIG CYPRESS BAYOU AND CADDO LAKE WATERSHEDS IN MARION AND HARRISON COUNTIES TEXAS
… Bayou, flows across Eocene-aged rocks and sediments associated with the Wilcox Group; the Wilcox is of interest because it contains lignite coal, which has a direct link to mercury. Previous research has focused on dry deposition from fossil fuel combustion as the primary source of mercury …
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Metals and polycyclic aromatic hydrocarbons in environmental matrices of the Fleet Lagoon, UK and toxicological investigations using the marine polychaete Hediste diversicolor.
… may bind directly to organic particles within sediment and may remain undisturbed or re-released during periods of hydrodynamic activity. Sediment may therefore act as both source and sink for complex mixtures of contamination and bio-accumulate in sediment dwelling organisms including the …
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Sustainable Land-Use Management for the Conservation of the Freshwater Pearl Mussel: Sediment Flux and Provenance
… (FPM) populations are believed to be diffuse sediment losses associated with agriculture and forestry. The contribution of anthropogenic activity to river sediment load is of increasing global concern (Duerdoth et al. (2015). Excessive sedimentation of watercourses can reduce habitat quality, …
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Banking on offsets: a political ecological and eco-geomorphic analysis of Section 404 compensatory stream mitigation banking in Illinois and Missouri
… is composed of four separate analyses. Each analysis provides additional insight into the logics and subsequent biophysical outcomes of Section 404 compensatory stream mitigation banking regulators and participants in Illinois and Missouri. First, this dissertation explains the social …