Global ETD Search
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Showing 1 to 8 of 8 for “"Bedrock Surface"”.
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Geology of the unconsolidated deposits of Lake County, Indiana
… moraine to the Kankakee River.</p> <p>The bedrock surface has a general slope toward the basin of Lake Michigan. Five former stream valleys enter the basin from the preglacial drainage divide in Illinois.</p> <p>Till averaging about 50 feet in thickness, probably of Illinoian (7) age, lies …
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Groundwater of the Spiritwood Lake area, Stutsman County, North Dakota
… Spiritwood Lake is about 50 feet below the surface of the bedrock plain in a former melt-water channel. In the study area, glacial drift unconformably overlies the Pierre Shale, the youngest pre-Pleistocene sediment. The boundary between the two units is marked by a zone of shattered Pierre …
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A geophysical characterization of New River terrace deposits in Giles County, Virginia
… Geologic mapping of the underlying carbonate bedrock provided orientation measurements of fault, bedding, and joint planes; however, none of the features mapped within the bedrock could be directly correlated with the observed faults. The results of geophysical studies suggest significant …
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Sub-Ice Relief and Geology of East Antarctica
… Reduction and evaluation of profiles of ice/bedrock interface, combined with critically assessed results of previous geophysical and geological investigations, has allowed some interpretation of the geological structure and glacial history of East Antarctica. A comparison of the relative and …
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Erosional history of the New River, southern Appalachians, Virginia
Much of the bedrock surface of the Southern Appalachian Valley and Ridge Province is covered by a veneer of surficial deposits classified as alluvium, colluvium, and residuum. In this investigation the surficial geology of a 60-km<sup>2</sup> area of the New River drainage system was mapped at a …
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The geology of the diamondiferous inner shelf off Namaqualand between Stompneus Bay and White Point just north of the Buffels River
… the foot of the inner-shelf slope. Precambrian bedrock is exposed over 70% of the inner shelf. Bedrock morphology, compiled from high-resolution seismic profiles, shows erosional features in the bedrock surface which indicate potentially diamondiferous areas. Gently sloping (1°) wave-abraded …
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Subsurface Geophysical Investigations of Oneida Lake Ny: Insights Into Ice Sheet Processes and Deglaciation At Termination I
… This dissertation presents the first subsurface investigation of Glacial Lake Iroquois deposits and the underlying glacial bedforms of the Oneida Lake basin. Subsurface investigations of the glacial deposits in the Oneida Basin provide insights into LIS recession and ice stream activity …