Engineering aspects of the St. Peter sandstone in the Minneapolis-St. Paul area of Minnesota
KeywordsGeology -- Minnesota -- Minneapolis.
Geology -- Minnesota -- Saint Paul.
Engineering geology -- Minnesota.
Sandstone -- Minnesota.
MetadataShow full item record
PublisherThe University of Arizona.
RightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Degree ProgramGraduate College
Degree GrantorUniversity of Arizona
Showing items related by title, author, creator and subject.
A ground water model of the Williams Lake watershed Hubbard County, MinnesotaKarls, Robert Michael.; Neuman, Shlomo P. (The University of Arizona., 1982)Two-dimensional ground-water models were used to simulate groundwater flow in the Williams Lake watershed. The models were used to estimate the seepage rates to and from Williams Lake, and to determine model sensitivity to several parameters governing the flow systems. The models are based on a two-dimensional, block-centered, finite-difference scheme. A steady-state model was developed for a period in early July 1979, and this model provided initial conditions for a transient simulation through June 1981. The results of the modeling and sensitivity analysis showed that the model is most sensitive to the thickness, and hydraulic conductivity of the lake bottom sediments.
An Assessment Of The Dendroclimatic Potential Of Three Conifer Species In Northern MinnesotaKipfmueller, Kurt F.; Elliott, Grant P.; Larson, Evan R.; Salzer, Matthew W.; Department of Geography, University of Minnesota; Department of Geography, University of Missouri; Department of Social Sciences, University of Wisconsin-Platteville; Laboratory of Tree-Ring Research, University of Arizona (Tree-Ring Society, 2010-07)Ring-width chronologies from Pinus resinosa Ait., Pinus strobus L., and Thuja occidentalis L. were developed in two areas of the Boundary Waters Canoe Area Wilderness to assess their growth climate response and their potential for developing reconstructions of climate. New red pine chronologies were combined with existing chronologies to extend the ring-width record both into the past and into the present. Ring-width response to climate, assessed using correlation analysis and response functions, was broadly similar among all three species with relatively significant positive relationships with June–July precipitation and significant negative (but less consistent) associations with June–July temperatures (p < 0.05). White-cedar appeared to have a broader phenological window of response with a stronger spring influence when compared to other species included in this study. Comparisons with other nearby proxies showed relatively strong coherence overall but with some important regional differences. Overall, these species may be useful for placing current climatic patterns in the Boundary Waters within a longer term perspective but care should be taken with respect to identifying appropriate climatic records for calibration.