Browsing by Subject "topography"
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Item C-28 Geologic Atlas of Renville County, Minnesota [Part A](2013) Setterholm, Dale R.Surface and subsurface geology of Renville County, Mn. includes bedrock topography and depth-to-bedrockItem C-30 Geologic Atlas of Wright County, Minnesota [Part A](2013) Tipping, Robert G.Surface and subsurface geology of Wright County, Mn. includes bedrock topography and depth-to-bedrock. Additional data added 2015; raster data sets of the elevation of the top and bottom, and the thickness of bedrock units in Wright County.Item C-31 Geologic Atlas of Morrison County, Minnesota [Part A](2014) Lusardi, Barbara A.Surface and subsurface geology of Morrison County, Mn., including bedrock topography and depth to bedrockItem C-32 Geologic Atlas of Sherburne County, Minnesota [Part A](2013) Lusardi, Barbara A.Surface and subsurface geology of Sherburne County, Mn., including bedrock topography and depth to bedrockItem C-33, Geologic Atlas of Houston County, Minnesota(2014) Setterholm, Dale, R.Surface and bedrock geology of Houston County, Mn., also includes data-base information, bedrock topography, depth-to-bedrock and structural tops of bedrock strata.Item C-34, Geologic Atlas of Winona County, Minnesota(2014) Setterholm, Dale, R.Surface and bedrock geology of Winona County, Mn., also includes data-base information, bedrock topography, depth-to-bedrock and structural tops of bedrock strata.Item C-35, Geologic Atlas of Meeker County, Minnesota [Part A](Minnesota Geological Survey, 2015) Meyer, Gary N.A County Geologic Atlas project is a study of a county's geology, and its mineral and ground-water resources. The information collected during the project is used to develop maps, data-base files, and reports. This same information is also produced as digital files for use with computers. The map information is formatted as geographic information system (GIS) files with associated data bases. The maps and reports are also reproduced as portable document files (PDFs) that can be opened on virtually any computer using the free Acrobat Reader from Adobe.com.Item C-38, Geologic Atlas of Kanabec County, Minnesota(Minnesota Geological Survey, 2016) Boerboom, Terrence J.Surface and bedrock geology of Kanabec County, Mn., also includes data-base information, bedrock topography, depth to bedrock in GIS and image formats, as well subsurface interpretations of sand distribution between the land and bedrock surfaces.Item C-47, Geologic Atlas of Rock County, Minnesota(Minnesota Geological Survey, 2020) Bauer, Emily J; Retzler, Andrew J; Jirsa, Mark A; Chandler, Val W; Pettus, Margeurite C; Gowan, Angela S; Hamilton, Jacqueline DA County Geologic Atlas project is a study of a county's geology, and its mineral and ground-water resources. The information collected during the project is used to develop maps, data-base files, and reports. This same information is also produced as digital files for use with computers. The map information is formatted as geographic information system (GIS) files with associated data bases. The maps and reports are also reproduced as portable document files (PDFs) that can be opened on virtually any computer using the free Acrobat Reader from Adobe.com.Item The Geological and Natural History Survey of Minnesota. The second annual report for the year 1873.(Minnesota Geological Survey, 1873) Winchell, N.H.; Peckham, S.F.Summary of geological studies in Minnesota for the year 1873Item M-194 Bedrock Geology of the Twin Cities Ten-County Metropolitan Area, Minnesota(2013-08-01) Mossler, John H.This regional map is partly a compilation of existing maps of bedrock geology in the metropolitan area and partly a remapping of bedrock in areas where the existing maps were out of date because of the acquisition of new subsurface data.Item Multi-Scale Topographic Influences on Tree Growth: A Case Study of Quercus lobata in the Tehachapi Mountains, California(2022-12) Trumper, MatthewComplex topography can facilitate climatic and hydrologic microenvironments that buffer plants against climate change and extreme drought. However, the extent to which topographic position mediates tree growth response to climate remains an open question. Dendrochronology, the study of precisely dated tree rings, has been a valuable tool for assessing tree growth response to climate variability across topographic gradients. In this study, six new tree-ring chronologies were developed from valley oak (Quercus lobata), a long-lived, endemic species in California. Trees were sampled growing in upland and riparian hillslope positions along a 1,300-meter (4,265-feet) elevational transect in the Tehachapi Mountains of California to understand how topography acts as a mediating factor on tree growth and drought sensitivity. Valley oaks are thought to be highly dependent on groundwater, so I hypothesized that higher groundwater availability at the riparian sites would mediate growth sensitivity to drought. Results showed that tree growth patterns and drought sensitivity varied substantially in association with hillslope position and elevation. Valley oak radial growth showed a consistently weaker response to precipitation at riparian sites, supporting my hypothesis. The influence of hillslope position on drought sensitivity varied with elevation, such that the riparian buffering effect was strongest at the low elevation sites and weaker at higher elevations. At upland sites, precipitation and tree growth covaried on annual to decadal time scales, depending on elevation. The strong topographic influence on valley oak growth and drought sensitivity observed here has implications for climate refugia planning and paleohydrology using this species.Item OFR 07-07, Bedrock geology, topography, and karst feature inventory of Steele, Dodge, Olmsted and Winona Counties(Minnesota Geological Survey, 2007) Tipping, R.G.; Mossler, J.H.; Alexander, E. Calvin, Jr.; Gao, Y.; Green, Jeffrey A.; Alexander, S.C.Final Project Report Regulating contaminant sources and addressing remediation of contaminated sites is difficult in sensitive karst areas because of the unpredictable nature of groundwater movement in solution-weathered bedrock. In this project, the Minnesota Departments of Health, Natural Resources and the Minnesota Pollution Control Agency partnered with the Minnesota Geological Survey and the Department of Geology and Geophysics – University of Minnesota, to develop better tools to understand and manage point and non-point sources on contamination in karst terrains. Contaminant Management in the Karst Region Contract with MGS, also includes summary information for 319 Karst Demonstration ProjectItem S-15 Geologic Map of Minnesota, Bedrock Topography(Minnesota Geological Survey, 1982) Olsen, Bruce M.; Mossler, John H.