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 5 of 5 for “"Hydraulic mining"”.
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Planimetric and Volumetric Analysis of Channel Change In the Post-Hydraulic Mining Period (1906-2009) In the Central Valley, California
… system. Channel and floodplain changes caused by hydraulic gold mining sediment in this system are a major example of anthropogenic impacts on a fluvial system.</p> <p> This study uses remote sensing change-detection techniques to examine spatial and temporal patterns of HMS redistribution at a …
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Remediation options for mercury-contaminated sediments within the Yuba River watershed
<p>Historical hydraulic mining activities in the Yuba River watershed have impacted the watershed and the San Francisco Bay. The research evaluates pathways for mercury entry into the watershed and potential remediation technologies to reduce the risk of future mercury contamination from hydraulic …
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Analysis of the Tidal Range in the Sacramento San Joaquin Delta from 1857 to Present
… by human activity since the mid-1800s from mining, agriculture, dredging, and urbanization. Did the resulting modifications to channel width, depth, and length alter tidal range in the Sacramento San Joaquin Delta?</p> <p>In this study, archival tidal records were evaluated at many stations …
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Cavitation erosion of materials
… investigation was undertaken to find the optimum hydraulic fluids and materials for combating cavitation erosion in hydraulic mining machinery operating,on 5:95 oil-in-water emulsions, Controlled cavitation was generated in the laboratory in a vibratory cavitation apparatus employing the …
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Pre-1900s Chinese placer mining in northeastern Washington State: an archaeological investigation
… fragmented. Documentation of the Chinese placer mining activities in the region is poor, at best, and the scars left on the landscape by these miners are often inundated by the damming of the Columbia River (and other major waterways), or the sites are heavily eroded and damaged. The available …