Browsing by Author "Hobbs, H.C."
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Item Anoka Sand Plain Regional Hydrogeologic Assessment(Minnesota Geological Survey, 1993) Meyer, G.N.; Patterson, C.J.; Hobbs, H.C.; Lehr, J.D.Item C-06 Geologic atlas of Dakota County, Minnesota(Minnesota Geological Survey, 1990) Balaban, N.H.; Hobbs, H.C.Item C-09 Geologic atlas of Rice County, Minnesota [Part A](Minnesota Geological Survey, 1995) Hobbs, H.C.Item Guidebook 18. Field Trip Guidebook Glacial Geology of the Laurentian Divide Area, St. Louis and Lake Counties, Minnesota(Minnesota Geological Survey, 1992) Lehr, J.D.; Hobbs, H.C.CONTENTS GLACIAL GEOLOGY OF THE LAURENTIAN DIVIDE AREA, ST. LOUIS AND LAKE COUNTIES, MINNESOTA, J.D. Lehr and Howard C. Hobbs AN OVERVIEW OF THE VEGETATIONAL HISTORY OF THE ARROWHEAD REGION, NORTHEASTERN MINNESOTA, James K. Huber DESCRIPTION OF ROTASONIC CORE FROM THE TOIMI DRUMLIN FIELD AREA, Howard C. HobbsItem M-077 Quaternary geologic map of Sherburne County, Minnesota(Minnesota Geological Survey, 1993) Meyer, G.N.; Hobbs, H.C.Item M-096 Surficial geology of the Hastings 30 x 60 minute quadrangle, Minnesota(Minnesota Geological Survey, 1999) Hobbs, H.C.Item M-107 Surficial geology of the Rochester 30 x 60 minute quadrangle, Minnesota(Minnesota Geological Survey, 2000) Hobbs, H.C.Item M-112 Surficial geology of the Brainerd quadrangle, Crow Wing County, Minnesota(Minnesota Geological Survey, 2001) Hobbs, H.C.Item M-113 Surficial geology of the Gull Lake quadrangle, Cass and Crow Wing Counties, Minnesota(Minnesota Geological Survey, 2001) Hobbs, H.C.Item M-127 Surficial geology of the French River and Lakewood quadrangles, St. Louis County, Minnesota(Minnesota Geological Survey, 2002) Hobbs, H.C.Item M-130 Surficial geology of the Faribault 30 x 60 minute quadrangle, South-Central Minnesota(Minnesota Geological Survey, 2002) Lusardi, B.A.; Hobbs, H.C.; Patterson, C.J.Item M-137 Surficial geology of the Knife River quadrangle, St. Louis and Lake Counties, Minnesota(Minnesota Geological Survey, 2003) Hobbs, H.C.Item M-138 Surficial geology of theTwo Harbors quadrangle, Lake County, Minnesota(Minnesota Geological Survey, 2003) Hobbs, H.C.Item M-144 Surficial geology of the Castle Danger quadrangle, Lake County, Minnesota(Minnesota Geological Survey, 2004) Hobbs, H.C.Item M-156 Surficial geology of the Austin 30’ x 60’ quadrangle, southeastern Minnesota(Minnesota Geological Survey, 2005) Hobbs, H.C.Item M-186 Surficial geology of the Duluth Heights quadrangle, St. Louis County, Minnesota(Minnesota Geological Survey, 2009) Hobbs, H.C.Item M-187 Surficial geology of the Duluth quadrangle, St. Louis County, Minnesota(Minnesota Geological Survey, 2009) Hobbs, H.C.Item M-188 Surficial geology of the West Duluth quadrangle, St. Louis County, Minnesota(Minnesota Geological Survey, 2009) Hobbs, H.C.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 OFR91-05, Geologic factors affecting the sensitivity of the Prairie du Chien-Jordan aquifer(Minnesota Geological Survey, 1991) Setterholm, D.R.; Runkel, A.C.; Cleland, J.M.; Tipping, R.G.; Mossler, J.H.; Kanivetsky, R.; Hobbs, H.C.