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Full-Text Articles in Physical Sciences and Mathematics
Slope Stability Analysis Of A Lake Michigan Coastal Bluff, Gregory Carlton Young
Slope Stability Analysis Of A Lake Michigan Coastal Bluff, Gregory Carlton Young
Masters Theses
Bluff failure along the Lake Michigan coast can be produced primarily by increased pore pressure from perched water tables above lacustrine clay deposits. To test this theory, a site in Allegan County, Michigan with alternating layers of sand, clay and glacial till was chosen for bluff failure monitoring. Historically, the site experiences sporadic massive failures as opposed to neighboring sites that show more regular and uniform displacements. Four pole and cable monitoring lines were measured bi-weekly from December 2001 to October 2003. Lake levels were low and no erosion of material at the base of the slope occurred. Slumps above …
Joint Size Estimation Using Joint Traces On Borehole Walls, Christopher James Heiny
Joint Size Estimation Using Joint Traces On Borehole Walls, Christopher James Heiny
Masters Theses
One approach to characterizing subsurface joint populations is to assume
surface joint patterns are representative of joints at depth. Yet, many times, either the analogous surface joints are unexposed, or absent because surface rocks did not experience the same deformation history. The alternative of direct subsurface characterization has been limited by joints not being resolvable in seismic data and borehole data not yielding fracture size. The present approach uses the subsurface geometry of joint/borehole intersections to estimate mean joint size (mean joint length and width) and aspect ratio (joint length to width ratio), and presents a new method for determining …
Rugose Corals Of The Livingston Limestone Member, Bond Formation, Coles And Edgar County, Illinois, John Tobias Burke
Rugose Corals Of The Livingston Limestone Member, Bond Formation, Coles And Edgar County, Illinois, John Tobias Burke
Masters Theses
No abstract provided.