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 8 of 8 for “"fluvial environments"”.
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Is the presence of biomolecules evidence for molecular preservation in the fossil record?
… fossils <150,000 years old from different burial environments (i.e., permafrost, fluvial and hot springs) and a deep time study of dinosaurs (~212 - 66 Ma) from the same burial environment (i.e., fluvial), representing the current limit of the reported protein preservation in the fossil record. …
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Influence of Flake Morphology on Fluvial Transportation and Site Formation Interpretation
… Many archaeological sites are located near fluvial environments where flowing water can potentially alter debitage assemblages. Previous researchers have studied the relationship between flake morphology and flowing water. However, these studies often focus on the weight and size of …
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Análise da estabilidade lateral em ambientes fluviais do semiárido paraibano.
… renovation and transformation, such as the fluvial systems. As the processes of lateral changes in river banks, are among the most recurrent processes in fluvial landscapes and the understanding of its mechanism of action is essential to the explanation of the evolution of the various …
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Architecture and origin of fluvial cross-bedding based on flume experiments and geological examples field case studies: Rillo de Gallo, Spain and Northumberland, UK
… their internal sedimentary structures formed in fluvial environments within different depositional settings at Rillo de Gallo, (Spain) and Seaton Sluice, (Northumberland). In addition, flume experiments using well-sorted fine sand were used to investigate some of the factors controlling cross-bed …
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Assessing the effects of fluvial abrasion on bone surface modifications using high-resolution 3-D scanning
… obscured by other taphonomic processes such as fluvial abrasion. Previous studies on the effect of fluvial abrasion on cut marks suggest that sediment abrasion in fluvial environments can change the overall morphology of cut marks. Thus, analyzing the effects of fluvial abrasion on cut mark and …
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The sedimentology and lithostratigraphy of the Upper Jurassic Lourinha formation, Lusitanian Basin, Portugal
… slope systems were replaced by alluvial fan and fluvial environments which prograded from the nonh during the late Kimmeridgian. Continental environments, periodically punctuated by marine incursions, persisted over northern and central areas of the basin at least until the end of the Jurassic. …
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Planimetric and Volumetric Analysis of Channel Change In the Post-Hydraulic Mining Period (1906-2009) In the Central Valley, California
… of topographical and planimetric information in fluvial environments and can produce spatial data with high spatial and temporal resolutions. Measuring planimetric and volumetric change in fluvial sediment budgets and geomorphic change detection was used for long-term monitoring of a fluvial …
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Sedimentary Characteristics and Nutrient Sequestration of Embanked Floodplains Along the Lower Mississippi River, Mississippi and Louisiana
… patterns are different in different sub-fluvial environments. Eight sediment cores recovered from three different sub-environments including levee backslope, point-bar and backswamp, taken from the Lower Mississippi floodplain were analyzed for their organic matter (OM), carbon (C), …