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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 12 of 12 for “"water geochemistry"”.
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ASSESSING THE ROLE OF GEOLOGIC SETTING ON THE HYDROLOGY AND GROUND WATER GEOCHEMISTRY OF FENS IN THE GLACIATED MIDWESTERN UNITED STATES
… OF GEOLOGIC SETTING ON THE HYDROLOGY AND GROUND WATER GEOCHEMISTRY OF FENS IN THE GLACIATED MIDWESTERN UNITED STATES A water quality investigation of several fens located in the temperate glaciated Midwestern United States, near the southern limit of fen occurrence, was conducted to assess the …
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Geochemistry of cave pools in the Guadalupe Mountains, NM : implications for geomicrobiology
The study of the chemistry of waters in cave pools in the Guadalupe Mountains, NM was conducted to determine the variation in cave pool water geochemistry, explain hydrogeologic variations in a geologic context, identify the processes that control cave pool hydrologic variations and determine …
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Characterization Of Phosphorus, Nitrogen, And Sulfur Concentrations In A Paired Disturbed And Natural Wetland In Northwest Minnesota
… designed to help understand near surface pore water geochemistry in an effort to determine causes of degradation and the potential for reversal. Shallow groundwater samples collected along and perpendicular to a major ditch flowing through the wetland were analyzed for pH, Eh, sulfide …
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Techno-economic analysis of water management options for unconventional natural gas developments in the Marcellus Shale
… of this advancement. As a result, the need for water treatment has increased significantly and became a major cost driver for producers. What to do with the flowback water in light of scarce disposal facilities and substantial handling costs is a major impediment to the development of the …
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Geochemical characteristics and microbial diversity of CO2-rich mound springs of the Tierra Amarilla anticline, New Mexico
This interdisciplinary research explores the water geochemistry, microbial heterogeneity, geochemical cycling, and paleohydrological longevity of a unique set of desert springs in north-central New Mexico. This series of travertine-depositing CO2-rich springs is located along the boundary zone …
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Ultrahigh-resolution paragenesis of the Cambrian-age Mt. Simon Sandstone at a burial depth of 1.8-2.1 km, Illinois basin, USA
… wireline log data and formation on Sr-isotope water geochemistry, have permitted the construction and interpretation of a complex sequence of paragenetic events. Core samples were collected from the Illinois Basin-Decatur Project CCS injection well. The 1.8-2.1 km interval of the well was …
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Quantification of total microbial biomass and metabolic activity in subsurface sediments
… with radiotracer assays and the analysis of porewater constituents are currently being used to explore the subsurface biosphere, alongside with molecular biological analyses. However, many of these techniques reach their detection limits due to low microbial activity and abundance. Direct …
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Relationship between Land Use and Surface Water Quality in a Rapidly Developing Watershed in Southeast Louisiana
The Tangipahoa River and Natalbany River watersheds (Tangipahoa Parish/County) in the Lake Pontchartrain Basin (southeastern Louisiana) are experiencing rapid urbanization, particularly in the wake of the 2005 hurricane season. To document the impact of land use on water quality, thirty sites were …
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Reconstructing Australia’s late Quaternary climate from the geochemistry of lake sediments and snail shells
… on the clumped isotope composition (Δ47) of freshwater snail shells from Blanche Cave, also in south-eastern Australia (Chapter 6). Δ47 analysis allows calculation of the growth temperature of carbonate minerals (e.g. snail shells), independent of organism, carbonate phase, or formation water …
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Sediment-Pore Water Chemistry of Taupo Volcanic Zone Lakes and the Effect Trophic State has on Exchange with the Water Column
… to develop an understanding of the sediment-pore water interactions over a range of trophic conditions and how the biogeochemical cycles influence the lake ecosystem and the implications that this has for management of the TVZ lakes. The monthly changes in composition of lake water, pore water, …
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Seasonal geochemical and isotopic investigations for sustainable water resource managementa case study of the pordenone plain (NE Italy)
The availability and stability of water resources have profound implications for food security, rural pollution, urban energy production, industrial development, and overall economic growth. These resources are not only vulnerable to the direct impacts of human activities, such as pollution from …
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Biogeochemical investigation of centrifuged fine tailings deposits at an oil sands mine in Northern Alberta, Canada
… minerals suspended in oil sands process-affected water (OSPW). High sodium (Na) concentrations in OSPW increase the electrical double layer (EDL) thickness at clay-mineral surfaces, which hinders aggregation and, therefore, settlement. Production of CFT involves dredging FFT from tailings ponds, …