Browsing by Author "Harris, K.L."
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Item C-15 Geologic atlas of Pope County, Minnesota [Part A](Minnesota Geological Survey, 2003) Harris, K.L.Item Geological mapping and 3D model of deposits that host ground-water systems in the Fargo-Moorhead region, Minnesota and North Dakota(Minnesota Geological Survey, 2005) Thorleifson, L. H.; Harris, K.L.; Berg, J.; Tipping, R.G.; Malolepszy, Z.; Lusardi, B.A.; Setterholm, D.; Anderson, F.The objective of the current project is to present an updated and enhanced depiction of the sediments and rocks within which ground-water systems occur across the Fargo-Moorhead region, to support further assessment of currently utilized and potentially usable ground-water resources in the region. To do so, existing geologic maps from North Dakota and Minnesota were compiled, interpreted, and integrated to produce two maps, one depicting the uppermost unconsolidated deposits (Surficial Geology; 1: 200,000), and the other depicting the uppermost rocks (Bedrock Geology; 1: 400,000). These maps were merged with a new interpretation of bedrock elevation and a compilation of readily available digital drillhole data for approximately 30,000 sites to produce a three-dimensional (3D) depiction of subsurface geology, extending from the land surface down to the top of the granites and other igneous and metamorphic basement rocks of Precambrian age that underlie the entire region.Item M-173 Quaternary geology of the Crookston 30’ x 60’ quadrangle, northwest Minnesota(Minnesota Geological Survey, 2006) Harris, K.L.Item M-177 Quaternary geology of the Fosston 30’ x 60’ quadrangle, northwest Minnesota(Minnesota Geological Survey, 2007) Harris, K.L.Item OFR 07-01, Till geochemical and indicator mineral reconnaissance of Minnesota(Minnesota Geological Survey, 2007) Thorleifson, L.Harvey; Harris, K.L.; Hobbs, H.C.; Jennings, C.E.; Knaeble, A.R.; Lively, R.S.; Lusardi, B.A.; Meyer, G.N.As a cooperative project of the Minnesota Geological Survey and industry, the entire State of Minnesota and adjacent regions was sampled for till geochemistry and indicator minerals at a 30-km spacing during summer 2004. Within target cells, each a quarter-degree latitude by a half-degree longitude, till from between about 1 and 2 m depth was sampled by filling a 15 liter plastic pail. At a few sites, vertical profiles were collected. In addition, three transects to the north were sampled, to help identify sediments derived by long-distance glacial transport, to obtain reference samples from the Thompson nickel belt, and also to extend sampling to the limit of Hudson Bay-derived carbonate-bearing sediments, to permit comparison to Minnesota carbonate-bearing sediments. Three control samples anomalous in kimberlite indicator minerals from Kirkland Lake, Ontario, were also obtained. The resulting batch consisted of 250 samples covering Minnesota and adjacent areas, 20 samples from Canada, and the three standards. The results are a highly significant step forward in mapping our geochemical landscape, in clarifying mineral potential, in provision of reference data useful to environmental protection, public health, and exploration, and in supporting follow-up with respect to potential mineralization.Item Quaternary geology-Otter Tail area, west-central Minnesota [Part A](Minnesota Geological Survey, 1999) Harris, K.L.Item Quaternary geology-Southern Red River Valley, Minnesota [Part A](Minnesota Geological Survey, 1995) Harris, K.L.Item Quaternary geology-Traverse-Grant area, west-central Minnesota [Part A](Minnesota Geological Survey, 2006) Harris, K.L.