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.
Results
Showing 1 to 14 of 14 for “"depth to bedrock"”.
-
Geophysical Characterisation and Evolutionary Model of the Quaternary sediments in the North Offaly region of Central Ireland
… and particle size analysis samples were used to produce Quaternary geological and depth to bedrock maps for the 600 Km² research area located in the North Offaly region of central Ireland. Based on the mapping, the area was subdivided into four physiographic units with specific landscape …
-
Seismic Reflection and Gravity Constraints on the Bedrock Configuration in the Greater East Missoula Area
… MT area is the site of numerous studies to track possible groundwater contamination from the EPA Superfund Site at the Milltown Dam. The accuracy of these groundwater models depends on many factors, one of which is the accuracy to which the bedrock topography is mapped. Currently, a map …
-
Seismic Reflection and Gravity Constraints on the Bedrock Configuration in the Greater East Missoula Area
… MT area is the site of numerous studies to track possible groundwater contamination from the EPA Superfund Site at the Milltown Dam. The accuracy of these groundwater models depends on many factors, one of which is the accuracy to which the bedrock topography is mapped. Currently, a map …
-
Predicting Soil Erosion on Off-Road Vehicle Trails in Southwest Missouri
… on publicly held lands. In the period from 1991 to 1994, a monitoring program was initiated to determine which of the 125 miles of trails should be closed or rerouted. This program was a reaction to erosion but did not prevent or predict it. Regression analysis indicated no statistical …
-
Geophysical assessment of soil and rock in the New Madrid seismic zone
… geophysical investigations were conducted to characterize the subsurface. At the Illinois site, borehole control, downhole seismic (DHS), seismic refraction tomography (SRT) and multichannel analysis of surface waves (MASW) data were acquired for the purpose of seismic site …
-
Processes Governing Rapid Recharge Events in a Shallow Fractured Rock Aquifer Having Minimal Overburden Cover
The goal of this work is to investigate the influence of overburden cover on controlling recharge to a bedrock aquifer, specifically focusing on rapid recharge events. Rapid recharge events have been observed in a fractured rock site in eastern Ontario and fractured rock sites around the world. The …
-
EVALUATION OF BEDROCK DEPTH AND SOIL INFILTRATION ALONG PENNYPACK CREEK USING ELECTRICAL RESISTIVITY TOMOGRAPHY AND MOISTURE LOGGERS
… surfaces alter hydrologic systems by increasing stormwater runoff, decreasing infiltration, and reducing vegetation cover and evapotranspiration. Modeling hydrologic systems here is especially difficult due to the increased impervious land cover, which makes predicting processes such as urban …
-
Analysis of Sinkhole Susceptibility and Karst Distribution in the Northern Shenandoah Valley, Virginia: Implications for Low Impact Development (LID) Site Suitability Models
Increased stormwater runoff due to urban development in the northern Shenandoah Valley (NSV) region of Virginia has prompted local officials and representatives to consider Low Impact Development (LID) as a stormwater management technique. LID is based on infiltrating stormwater runoff at the …
-
Evidence for Glacial Outburst Floods along the Lower Flathead River: Results from Geologic Mapping, Geomorphologic Analysis and a Gravity Survey near Polson, Montana
… terminal position of the Flathead Lobe, in order to better understand the history of deglaciation in the region and better document evidence supporting the delivery of large discharge pulses of meltwater during terminal glacial retreat. Based on my field observations and facies descriptions, I …
-
Evidence for Glacial Outburst Floods along the Lower Flathead River: Results from Geologic Mapping, Geomorphologic Analysis and a Gravity Survey near Polson, Montana
… terminal position of the Flathead Lobe, in order to better understand the history of deglaciation in the region and better document evidence supporting the delivery of large discharge pulses of meltwater during terminal glacial retreat. Based on my field observations and facies descriptions, I …
-
Lithologic, edaphic, and biotic factors of small mammal habitats in the slate belt of Western Rutland County, Vermont, and Eastern Washington County, New York
… both Rutland County, Vermont, and Washington County, New York, has indicated a relative paucity of small mammalian species. There are also rather low populations levels of those mammals present when compared to other regions in Vermont and nearby states. The evolution of the soils from the …
-
An Examination of Site Response in Columbia, South Carolina: Sensitivity of Site Response to "Rock" Input Motion and the Utility of Vs(30)
… rock. An equivalent-linear algorithm is used to estimate site response for vertically incident shear waves in a horizontally layered Earth model. Non-linear mechanical behavior of the soils is analyzed using previously published strain-dependent shear modulus and damping degradation models. …
-
Multi-fold TDEM Experiment Design for Near Surface Conductivity Mapping
… of traditional land-based TDEM survey designs to obtain a robust data set. This design inherently accommodates a broad range of possible Earth models through a rich combination of analysis opportunities making it ideally suited for reconnaissance. Kentland Farms, VA was chosen as the test site, …
-
Αστικό δίκτυο επιταχυνσιογράφων της Πάτρας (UPAN) : εγκατάσταση, ανάπτυξη βάσης δεδομένων και επεξεργασία καταγραφών
Το αντικείμενο της παρούσας Διδακτορικής Διατριβής ήταν η εγκατάσταση και λειτουργία ενός αστικού δικτύου επιταχυνσιογράφων (αστικό δίκτυο επιταχυνσιογράφων της Πάτρας, UPAN) στην παραθαλάσσια πόλη της Πάτρας (πληθυσμός: 160.400), καθώς και η επεξεργασία των σχετικών σεισμικών καταγραφών, με στόχο …