State Map Series
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Item S-23 Geologic Map of Minnesota - Quaternary Geology(Minnesota Geological Survey, 2019) Lusardi, Barbara A; Gowan, Angela S; McDonald, Jennifer M; Marshall, Katherine J; Meyer, Gary N; Wagner, Kaleb GThere are no GIS files associated with this compilation. It was made for printing and visualization. GIS files are available with the detailed digital database D-1 at the MGS Data Portal -- https://mngs-umn.opendata.arcgis.com/ and are not available in this archive. S-23 compiles new and previously published geologic mapping to show the surficial sediments in Minnesota as a printable !:500,000 scale version. In contrast to Hobbs and Goebel (1982), where map colors indicated provenance, on this map unit colors refer to texture: green for diamicton interpreted to be till, red/orange for sand and gravel-dominated sediments, and blue for silt and clay. Glacial sediments were mapped using lithostratigraphic formation names of Johnson and others (2016) and references therein. Post glacial and proglacial sediments were named for their genesis. Peat is shown in Figure 1. Modern lake sediment is not shown here. Refer to Figure 2 for the location of major provenances and the names and extent of ice lobes during the late Wisconsinan glaciation. Unless otherwise noted, the two-letter map-unit abbreviation indicates diamicton interpreted to be till of a particular formation. The addition of a third letter indicates associated sediments.Item S-22, Geologic Map of Minnesota, Precambrian Bedrock Geology(2012) Jirsa, M.A.; Boerboom, T.J.; Chandler, V.W.This map of the Archean and Proterozoic (Precambrian) geology of Minnesota is identical with MGS State Map S-21, except it portrays an interpretation beneath Phanerozoic (Paleozoic and Mesozoic) strata inferred from geophysical maps and drill core.Item S-21 Geologic Map of Minnesota-Bedrock Geology(Minnesota Geological Survey, 2011) Jirsa, Mark A.; Boerboom, Terrence J.; Chandler, V.W.; Mossler, John H.; Runkel, Anthony C.; Setterholm, Dale R.This map is a new construct that incorporates existing geologic maps where prior mappers had adequate ground control, and new interpretations based on drill hole, geophysical, and unpublished data where they did not. The interpretation differs significantly from previous maps to reflect new data and accommodate scale. It portrays our current geologic understanding of the temporal and geographic distribution of units within major Precambrian terranes and of the Phanerozoic strata. The western part of the mapped Precambrian terrane is inferred largely from geophysical maps, anchored locally by drilling. In many places, contacts are drawn between units of the same or similar apparent rock type (and same unit label); these are recognized as geometrically distinct, though geophysically or lithologically similar. Digital files corresponding to this map allow removal of Cretaceous, Paleozoic, and some parts of Mesoproterozoic strata to reveal an interpretation of the underlying Precambrian bedrock. For additional data see: (http://hdl.handle.net/11299/98043 [select, copy and paste into browser]) which contains files associated with Bedrock Topography, Depth to Bedrock, and locations of Outcrop and Geochronologic analyses.Item S-15 Geologic Map of Minnesota, Bedrock Topography(Minnesota Geological Survey, 1982) Olsen, Bruce M.; Mossler, John H.Item S-20 Geologic map of Minnesota, bedrock geology(Minnesota Geological Survey, 2000) Morey, G.B.; Meints, J.P.Item S-01 Geologic map of Minnesota, Quaternary geology(Minnesota Geological Survey, 1982) Hobbs, H.C.; Goebel, J.E.Item S-19 Geologic map of Minnesota, bedrock geology(Minnesota Geological Survey, 1993) Morey, G.B.Item S-18 Shaded-relief aeromagnetic anomaly maps of Minnesota(Minnesota Geological Survey, 1991) Chandler, V.W.Item S-17 Aeromagnetic anomaly map of Minnesota(Minnesota Geological Survey, 1991) Chandler, V.W.Item S-16 Bouguer gravity anomaly map of Minnesota(Minnesota Geological Survey, 1991) Chandler, V.W.; Schaap, B.D.Item S-14 Geologic map of Minnesota, depth to bedrock(Minnesota Geological Survey, 1982) Olsen, B.M.; Mossler, J.H.Item S-12 Bouguer gravity anomaly map of Minnesota(Minnesota Geological Survey, 1982) Chandler, V.W.Item S-11 Aeromagnetic anomaly map of Minnesota(Minnesota Geological Survey, 1982) Chandler, V.W.Item S-10 Geologic map of Minnesota, bedrock outcrops(Minnesota Geological Survey, 1982) Morey, G.B.Item S-06 Hydrogeologic map of Minnesota, Quaternary hydrogeology(Minnesota Geological Survey, 1979) Kanivetsky, R.Item S-05 Hydrogeologic map of Minnesota, bedrock hydrogeology(Minnesota Geological Survey, 1979) Kanivetsky, R.Item S-04 Geologic map of Minnesota, Quaternary geology(Minnesota Geological Survey, 1979) Goebel, J.E.; Walton, M.Item S-03 Hydrogeologic map of Minnesota, Quaternary hydrogeology(Minnesota Geological Survey, 1979) Kanivetsky, R.Item S-13 Geologic map of the Lake Superior region, Minnesota, Wisconsin and northern Michigan, bedrock geology:(Minnesota Geological Survey, 1982) Morey, G.B.; Sims, P.K.; Cannon, W.F.; Mudrey, M.G., Jr.; Southwick, D.L.Item S-02 Hydrogeologic map of Minnesota, bedrock hydrogeology(Minnesota Geological Survey, 1979) Kanivetsky, R.