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The table contains oxide and cation compositions of olivine grains from drill core of the Duluth Complex, Minnesota. The oxides were determined by electron probe microanalysis (EPMA) and are reported in weight percent (wt%). The cations were calculated based on the oxide compositions and are reported in mole percent (mol%). Olivine is a magnesium iron orthosilicate mineral with the formula (Mg2+, Fe2+)2SiO4. Olivine forms a solid solution series with magnesium (Mg) at one end and iron (Fe) at the other. Forsterite (Mg2SiO4) is the magnesium endmember and fayalite (Fe2SiO4) is the iron endmember. Minor elements can substitute into the crystal structure, such as manganese (Mn) and nickel (Ni). To better understand...
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This dataset provides a subset of well construction information provided by the driller's well logs. Complete well logs can be accessed on the Minnesota Well Index online (http://www.health.state.mn.us/ divs/eh/cwi/).
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These data were collected using a 1200 kHz TRDI Rio Grande acoustic Doppler current profiler (ADCP) in mode 12 with 25 centimeter bins from a moving boat. The data were georeferenced with a Hemisphere Crescent A100 differential Global Positioning System (GPS) receiver with submeter accuracy. The data have been layer-averaged over the lower portion of the water column (0 to 4 meters above the bed). These data were collected by the U.S. Geological Survey (USGS) concurrently with environmental DNA (eDNA) sampling in this reach of the Chicago Sanitary and Ship Canal by the U.S. Fish and Wildlife Service (USFWS). Data were processed using the Velocity Mapping Toolbox (Parsons and others, 2013). NOTE: Any data assigned...
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These data were collected using a 1200 kHz TRDI Rio Grande acoustic Doppler current profiler (ADCP) in mode 12 with 25 centimeter bins from a moving boat. The data were georeferenced with a Hemisphere Crescent A100 differential Global Positioning System (GPS) receiver with submeter accuracy. The data have been depth-averaged over the entire measured portion of the water column and temporally averaged over 5-second intervals to reduce noise. These data were collected by the U.S. Geological Survey (USGS) concurrently with environmental DNA (eDNA) sampling in this reach of the Chicago Sanitary and Ship Canal (CSSC) by the U.S. Fish and Wildlife Service (USFWS). Data were processed using the Velocity Mapping Toolbox...
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These data represent the air-free pH and specific conductance per pore volume of effluent generated by the phosphate removal column experiment. Solid samples used for the columns are of modern and legacy iron and steel slag from the Chicago-Gary area of Illinois and Indiana, USA.
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The Watershed Boundary Dataset (WBD) is a comprehensive aggregated collection of hydrologic unit data consistent with the national criteria for delineation and resolution. It defines the areal extent of surface water drainage to a point except in coastal or lake front areas where there could be multiple outlets as stated by the "Federal Standards and Procedures for the National Watershed Boundary Dataset (WBD)" "Standard" (https://pubs.usgs.gov/tm/11/a3/). Watershed boundaries are determined solely upon science-based hydrologic principles, not favoring any administrative boundaries or special projects, nor particular program or agency. This dataset represents the hydrologic unit boundaries to the 12-digit (6th level)...
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map background search result map search result map Spatial distribution of depth-averaged velocity measured in the Chicago Sanitary and Ship Canal, Chicago, IL (December 7, 2010) Spatial distribution of layer-averaged velocity (0-4 m above the bed) measured in the ACL slip on the Chicago Sanitary and Ship Canal near Lemont, IL (December 7, 2010) USGS Topo Map Vector Data (Vector) 48160 West Chicago, Illinois 20210628 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 2488 Barrington, Illinois 20210628 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 76273 Pigeon Point OE E, Minnesota 20190903 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 76147 Pigeon Point OE NE, Minnesota 20190903 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 17253 Gillis Lake, Minnesota 20190911 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 70227 Grand Marais, Minnesota 20190904 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 23094 Kawishiwi Lake, Minnesota 20190904 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 24624 Lake Polly, Minnesota 20190904 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 76080 Lutsen OE S, Minnesota 20190904 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 27746 Mark Lake, Minnesota 20190903 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 32520 Northern Light Lake, Minnesota 20190904 for 7.5 x 7.5 minute FileGDB 10.1 Selected well construction information Oxide and Cation Compositions of Olivine Grains from Drill Core in the Duluth Complex, Minnesota USGS Watershed Boundary Dataset (WBD) for 2-digit Hydrologic Unit - 03 (published 20201030) USGS Topo Map Vector Data (Vector) 186 Adel, Georgia 20200915 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 14097 Ellenton, Georgia 20200910 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 25435 Lenox, Georgia 20200914 for 7.5 x 7.5 minute Shapefile Air-free pH and specific conductance measurements for effluent generated during phosphate removal column experiment USGS Topo Map Vector Data (Vector) 48160 West Chicago, Illinois 20210628 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 2488 Barrington, Illinois 20210628 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 76273 Pigeon Point OE E, Minnesota 20190903 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 76147 Pigeon Point OE NE, Minnesota 20190903 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 17253 Gillis Lake, Minnesota 20190911 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 70227 Grand Marais, Minnesota 20190904 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 23094 Kawishiwi Lake, Minnesota 20190904 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 24624 Lake Polly, Minnesota 20190904 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 76080 Lutsen OE S, Minnesota 20190904 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 27746 Mark Lake, Minnesota 20190903 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 32520 Northern Light Lake, Minnesota 20190904 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 186 Adel, Georgia 20200915 for 7.5 x 7.5 minute Shapefile USGS Topo Map Vector Data (Vector) 14097 Ellenton, Georgia 20200910 for 7.5 x 7.5 minute FileGDB 10.1 USGS Topo Map Vector Data (Vector) 25435 Lenox, Georgia 20200914 for 7.5 x 7.5 minute Shapefile Spatial distribution of layer-averaged velocity (0-4 m above the bed) measured in the ACL slip on the Chicago Sanitary and Ship Canal near Lemont, IL (December 7, 2010) Spatial distribution of depth-averaged velocity measured in the Chicago Sanitary and Ship Canal, Chicago, IL (December 7, 2010) Air-free pH and specific conductance measurements for effluent generated during phosphate removal column experiment Oxide and Cation Compositions of Olivine Grains from Drill Core in the Duluth Complex, Minnesota Selected well construction information USGS Watershed Boundary Dataset (WBD) for 2-digit Hydrologic Unit - 03 (published 20201030)