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This page last updated: 06/05/2009
Metadata created using Minnesota Geographic Metadata Guidelines
| Originator | Minnesota Geological Survey |
| Abstract | A County Geologic Atlas is a systematic study of a county's geologic and ground water resources. Geologic studies include both near-surface deposits and bedrock. Ground water studies include flow systems, aquifer capacity, and ground water chemistry. In some areas sand and gravel deposits, sinkholes, or other features are studied. Interpretation of sensitivity to pollution is also part of an atlas. The information is organized, analyzed, and displayed using geographic information technology. Most Geologic Atlas and Regional Hydrogeologic Assessment projects are done in two parts. The Minnesota Geological Survey covers basic geology and creates databases of information such as wells and soil borings in part A. The Minnesota Department of Natural Resources handles hydrogeology and ground water sensitivity layers in Part B. Completion of a project's two parts is staggered: Part A is completed about two years before Part B, compiling information used to create part B. Parts A and B are published and distributed as two separate products. |
| Browse Graphic | none available |
| Time Period of Content Date | 2007 |
| Currentness Reference | Geologic maps were created based on information available to MGS during the period 2005-2007. |
| Access Constraints | None |
| Use Constraints | Credit should be given to the Minnesota Geological Survey for any use of the given digital data in any publication. See file 'mgsref.txt' on the ftp site for appropriate text credit. |
| Distributor Organization | Minnesota Geological Survey |
| Ordering Instructions | Arc Export files are available for free online download from Minnesota Geological Survey ftp site. Use online linkage field to get to MGS ftp site. The export (.e00) files for the Arc/Info coverages created for this project are included in a .zip file named export(e00).zip. File c18.zip contains ArcMap 9.2 mxd files, shapefiles, and grids. Metadata files, .pdf versions of map plates, and other reference material is also available at this site. If you would prefer to have the arc export files and arcview shapefiles on compact disc, contact the MGS Map Sales Department at (612) 627-4780, ext. 238, and specify publication 'County Atlas Series C-18, Part A'. |
| Online Linkage | Click here to download data. (See Ordering Instructions above for details.) By clicking here, you agree to the notice in "Distribution Liability" in Section 6 of this metadata. |
Go to Section:
1. Identification Information
2. Data Quality Information
3. Spatial Data Organization Information
4. Spatial Reference Information
5. Entity and Attribute Information
6. Distribution Information
7. Metadata Reference Information
| Section 1 | Identification Information | Top of page | ||
| Originator | Minnesota Geological Survey | |||
| Title | Todd County Geologic Atlas - Part A | |||
| Abstract | A County Geologic Atlas is a systematic study of a county's geologic and ground water resources. Geologic studies include both near-surface deposits and bedrock. Ground water studies include flow systems, aquifer capacity, and ground water chemistry. In some areas sand and gravel deposits, sinkholes, or other features are studied. Interpretation of sensitivity to pollution is also part of an atlas. The information is organized, analyzed, and displayed using geographic information technology. Most Geologic Atlas and Regional Hydrogeologic Assessment projects are done in two parts. The Minnesota Geological Survey covers basic geology and creates databases of information such as wells and soil borings in part A. The Minnesota Department of Natural Resources handles hydrogeology and ground water sensitivity layers in Part B. Completion of a project's two parts is staggered: Part A is completed about two years before Part B, compiling information used to create part B. Parts A and B are published and distributed as two separate products. |
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| Purpose | County Geologic Atlas and Regional Hydrogeologic Assessment information is used in planning and environmental protection efforts at all levels of government. Wellhead protection and well-sealing programs are examples of local programs that need geologic and ground water information. The information is also used by businesses and the general public. | |||
| Time Period of Content Date | 2007 | |||
| Currentness Reference | Geologic maps were created based on information available to MGS during the period 2005-2007. | |||
| Progress | Complete | |||
| Maintenance and Update Frequency | None planned | |||
| Spatial Extent of Data | Todd County, Minnesota | |||
| Bounding Coordinates | -95.14 -94.65 46.38 45.76 |
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| Place Keywords | Todd County, Minnesota | |||
| Theme Keywords | geoscientificInformation, Bedrock Geology, Surficial Geology, Bedrock Topography, Depth to Bedrock, Quaternary Stratigraphy, Wells, Mineral Resources | |||
| Theme Keyword Thesaurus | ISO 19115 Topic Category | |||
| Access Constraints | None | |||
| Use Constraints | Credit should be given to the Minnesota Geological Survey for any use of the given digital data in any publication. See file 'mgsref.txt' on the ftp site for appropriate text credit. | |||
| Contact Person Information | Richard Lively,
Minnesota Geological Survey 2642 University Avenue St. Paul, Minnesota 55114 Phone: 612-627-4780 Ext. 211 FAX: E-mail: lively@umn.edu | |||
| Browse Graphic | none available | |||
| Browse Graphic File Description | ||||
| Associated Data Sets | C-18, Part A. Geologic Atlas of Todd County, Minnesota. Dale R. Setterholm, Project Manager. March 2007. Color. 6 plates. Scales 1:100,000 and 1:200,000. Paper map and report available from MGS Map Sales Office (2642 University Avenue, St. Paul, Minnesota, 55114, 612-627-4782.) For a listing of other geologic maps go to the Minnesota Geological Survey website at http://www.geo.umn.edu/mgs/currentpubs.htm For a description of the status of the DNR Ground Water Mapping Program, go to: http://www.dnr.state.mn.us/waters/groundwater_section/mapping/index.html |
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| Section 2 | Data Quality Information | Top of full metadata | Top of page | |
| Attribute Accuracy | See individual layer metadata files on ftp site. | |||
| Logical Consistency | See individual layer metadata files on ftp site. | |||
| Completeness | See individual layer metadata files on ftp site. | |||
| Horizontal Positional Accuracy | See individual layer metadata files on ftp site. | |||
| Lineage | Investigations begin with a review of existing information, such as earlier geologic maps, soil maps, and hydrologic reports. Drillers send water well logs to the Minnesota Geological Survey, where they are reviewed, interpreted, and entered into the County Well Index (CWI), an interactive data base of water-well information. Building on the previous data, field studies are conducted to improve the understanding of local geologic and hydrologic conditions. Linework is created based upon the field studies and base data, and digitized. Background GIS data layers such as roads, surface hydrography, township grids, etc., are obtained from various sources, as noted in the Entity/Attribute section. See also individual metadata reports at ftp://mgssun6.mngs.umn.edu/pub4/c-18/c-18meta/ | |||
| Source Scale Denominator | 100000 | |||
| Section 3 | Spatial Data Organization Information | Top of full metadata | Top of page | |
| Native Data Set Environment | ArcGIS 9.2 | |||
| Geographic Reference for Tabular Data | ||||
| Spatial Object Type | Vector | |||
| Vendor Specific Object Types | Point, Vector, Polygon | |||
| Tiling Scheme | Todd County | |||
| Section 4 | Spatial Reference Information | Top of full metadata | Top of page | |
| Horizontal Coordinate Scheme | UTM | |||
| Ellipsoid | GRS80 | |||
| Horizontal Datum | NAD83 | |||
| Horizontal Units | Meters | |||
| Distance Resolution | ||||
| UTM Zone Number | 15E | |||
| Section 5 | Entity and Attribute Information | Top of full metadata | Top of page | |
| Entity and Attribute Overview | The following are a list of the digital files used in compiling the Todd County Geologic Atlas: Data Base: WWPT = point shapefile of county well index well locations wwpt_bdrk = point shapefile of cwi wells that reached bedrock wwpt_extrnl = point shapefile of cwi wells located outside of Todd Co., used in cross-sections. WW_SWL = database containing static water level data WWSTRAT = database containing water well stratigraphic data seismic_locs = point shapefile showing seismic survey location for depth to bedrock sounding qdpt = point shapefile of Giddings probe hole, samples and MnDot borehole locations dh_exp_point = point shapefile of exploration drill hole locations dh_mgs_point = point shapefile of MGS scientific drill hole locations xsec_ln_pub = line shapefiles of locations of cross sections shown in Plate 4 of the Atlas xsecln_2k = line shapefile of location of the 33 cross sections used to compile the subsurface geology. Lines are 2 km apart. papg_polygon = polygon shapefile of Todd County outline db_link = shapefile used for hyperlinks to text and figures Coverages used for base -- see index.txt in the folder export(e00). Bedrock Geology: bg_link = shapefile used for hyperlinks to text and figures papg_polygon = polygon shapefile of Todd County outline dh_exp_point = point shapefile of exploration drill hole locations dh_mgs_point = point shapefile of MGS scientific drill hole locations wwpt_bdrk = point shapefile of cwi wells that reached bedrock outcrops = polygon shapefile of outcrop locations bgstln_arc = line shapefile of faults, dikes and other structural features if present bgpg_arc = line shapefile of unit contacts and faults where they form a contact bgpg_polygon = polygon shapefile of bedrock geology toddbgpg polygon.lyr = layer (legend) file for displaying bedrock geology bgstrln arc.lyr = layer (legend) file for displaying structural features toddbgpg arc.lyr = layer (legend) file for displaying contacts and structural features Coverages used for base -- see index.txt in the folder export(e00). Surficial Geology: bg_link = shapefile used for hyperlinks to text and figures papg_polygon = polygon shapefile of Todd County outline xsec_ln_pub = line shapefiles of locations of cross sections shown in Plate 4 of the Atlas xsecln_2k = line shapefile of location of the 33 cross sections used to compile the subsurface geology. Lines are 2 km apart. gmline = line shapefile of geomorphic features associated with glacial ice movement gmpt_point = point shapefile of geomorphic ice contact features (kames) sgpg_cat_polygon = polygon shapefile that contains categories to provide additional ways to map the surface geology of Todd County sgpg_polygon = polygon shapefile showing surficial geology units ortho_e1-1m153.sid = mrsid file, FSA orthophoto of Todd County surface_ned = ESRI grid showing the surface topography of Todd County, derived from the USGS NED grid surf_ned_lks = not included on plate but provided here, the NED topography grid with bathymetry of sixteen lakes added to the topography demhs = ESRI NED grid with a hillshade applied to accentuate the 3d relief sgpg polygon.lyr = layer (legend) file for displaying surficial geology gmline_pub.lyr = layer (legend) file for displaying linear geomorphic features Coverages used for base -- see index.txt in the folder export(e00). Quaternary stratigraphy: strat_link = shapefile used for hyperlinks to text and figures papg_polygon = polygon shapefile of Todd County outline corepts_02 to 31 = point shapefiles indicating locations of wells with core or cuttings along each cross-section lines used on Plate 4 (also labeled A-G) wwpts_02 to 31 = point shapefiles indicating locations of water wells along each cross-section line used on Plate 4 (also labeled A-G) corepolys_02 to 31 = polygon shapefiles of stratigraphic logs for core and cuttings locations wwpolys_02 to 31 = polygon shapefiles of stratigraphic logs for water well locations xsec_elevln = lines shapefile of elevations against which the stratigraphy is plotted xsec_polygons = polygon shapefiles of cross sections for Plate 4. Labeled A-02 to G-31. corepolys.lyr = layer (legend) file for displaying the stratigraphy wwpolys.lyr = layer (legend) file for displaying the stratigraphy of water wells xsec_polygons.lyr = layer (legend) file for displaying the cross-section polygons Additional shapefiles of Quaternary giddings stratigraphy and stratigraphic information for the other cross-section lines is found in the folder nonWW_pts_xs: qd_pts = point shapefile of all giddings Quaternary locations qdpt_strat = point shapefile of giddings drillholes with associated stratigraphy rotos_cutngs = point shapefile of rotosonic and cuttings drillholes rotos_ctungs_strat = point shapefile of rotosonic, cuttings drillholes with associated stratigraphy wwpt and wwptstrat were used for all of the cross-section construction Coverages used for base -- see index.txt in the folder export(e00). Bedrock Topography and Depth to Bedrock (Drift Thickness): dt_link = shapefile used for hyperlinks to text and figures papg_polygon = polygon shapefile of Todd County outline btln_arc = line shapefile showing lines of equal elevation of the bedrock surface (bedrock topography) in folder grids: btgd = ESRI grid showing elevation the the bedrock surface dt_contln = line shapefile showing lines of equal thickness of the glacial drift (depth to bedrock) in folder grids: dtgd = ESRI grid showing the depth to bedrock (thickness of glacial drift) depth to bedrock (feet).lyr = layer (legend) file used to display depth to bedrock Elevation of bedrock surface (fsal).lyr = layer (legend) file used to display bedrock topography Coverages used for base -- see index.txt in the folder export(e00). Sand thickness and depth to tops of sand units (3d model): snd_link = shapefile used for hyperlinks to text and figures papg_polygon = polygon shapefile of Todd County outline xsecln_2k = line shapefile of location of the 33 cross sections used to compile the subsurface geology. Lines are 2 km apart. surf_snd_thck = line shapefile indicating thickness of surface sands in Todd County. in folder grids: surfsnds_top = ESRI grid showing areal distribution of surface sands c1_thck_cont = line shapefile indicating thickness of sand associated with till ct in folder grids: c1_depth_top = ESRI grid showing areal distribution of c1 sand and depth to top h1_thck_cont = line shapefile indicating thickness of sand associated with till ht in folder grids: h1_depth_top = ESRI grid showing areal distribution of h1 sand and depth to top b2_thck_cont = line shapefile indicating thickness of sand associated with till bt in folder grids: b2_depth_top = ESRI grid showing areal distribution of b2 sand and depth to top b1_thck_cont = line shapefile indicating thickness of deeper sand associated with till bt in folder grids: b1_depth_top = ESRI grid showing areal distribution of deeper b1 sand and depth to top x3_thck_cont = line shapefile indicating thickness of sand associated with x till in folder grids: x3_depth_top = ESRI grid showing areal distribution of x3 sand and depth to top x2_thck_cont = line shapefile indicating thickness of deeper sand associated with x till in folder grids: x2_depth_top = ESRI grid showing areal distribution of x2 sand and depth to top x1_thck_cont = line shapefile indicating thickness of deeper sand associated with x till in folder grids: x1_depth_top = ESRI grid showing areal distribution of x1 sand and depth to top unk_thic_cont = line shapefile showing thickness of glacial material where data is lacking (unknown stratigraphy) zerothck_unkpoly = polygon shapefile showing areas where data exists from surface to bedrock in folder grids\till_surfaces: ups_depth_top = ESRI grid showing depth to top of unknown stratigraphy Grids of additional sand surfaces that were too small or thin to include on the Plate 5 are included in the folder grids\snd_surfaces, along with the base of the unit, thickness and depth to top. Grids of all of the till surfaces which were not included on Plate 5 are provided in the folder grids\till_surfaces, with the base of the unit, thickness and depth to top. depth to top of unknown.lyr = layer (legend) file used to display areas where there is no unknown stratigraphy thickness snds.lyr = layer (legend) file used to display sand thickness surf_top.lyr = layer (legend) file used to display depth to top of sands Coverages used for base -- see index.txt in the folder export(e00). Mineral endowment: min_end_link = shapefile used for hyperlinks to text and figures papg_polygon = polygon shapefile of Todd County outline rspt_point = point shapefile of Quaternary sample data points, including gravel pits rspg_polygon = polygon shapefile of Quaternary sand and gravel resources bgst_rs_arc = line shapefile of bedrock structural features on the resource plate bgpgrs_polygon = polygon shapefile of bedrock geology with potential as a resource in folder grids: mgd1d = first derivative of magnetic anomaly map used with bedrock geology mapping rspg polygons.lyr = layer (legend) file used to display Quaternary resources rspt point.lyr = layer (legend) file used to display gravel pits and other features bgpgrs_polygon.lyr = layer (legend) file used to display bedrock polygons bgrs_stln.lyr = layer (legend) file used to display bedrock structural features Coverages used for base: see index.txt in the folder export (.e00) |
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| Entity and Attribute Detailed Citation | See metadata for individual layers at ftp site for the data set - ftp://mgssun6.mngs.umn.edu/pub4/c-18/c-18meta/ |
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| Section 6 | Distribution Information | Top of full metadata | Top of page | |
| Publisher | Minnesota Geological Survey | |||
| Publication Date | 2007 | |||
| Contact Person Information | Richard Lively Minnesota Geological Survey 2642 University Avenue St. Paul, Minnesota 55114 Phone: 612-627-4780 Ext. 211 FAX: E-mail: lively@umn.edu |
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| Distributor's Data Set Identifier | C18atodd | |||
| Distribution Liability | ||||
| Transfer Format Name | Arc/Info Export (.e00), shapefile, mxd | |||
| Transfer Format Version Number | ||||
| Transfer Size | export (e00).zip 50 MB; c18.zip 529 MB | |||
| Ordering Instructions | Arc Export files are available for free online download from Minnesota Geological Survey ftp site. Use online linkage field to get to MGS ftp site. The export (.e00) files for the Arc/Info coverages created for this project are included in a .zip file named export(e00).zip. File c18.zip contains ArcMap 9.2 mxd files, shapefiles, and grids. Metadata files, .pdf versions of map plates, and other reference material is also available at this site. If you would prefer to have the arc export files and arcview shapefiles on compact disc, contact the MGS Map Sales Department at (612) 627-4780, ext. 238, and specify publication 'County Atlas Series C-18, Part A'. |
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| Online Linkage | Click here to download data. (See Ordering Instructions above for details.) By clicking here, you agree to the notice in "Distribution Liability" above. | |||
| Section 7 | Metadata Reference Information | Top of full metadata | Top of page | |
| Metadata Date | 06/05/2009 | |||
| Contact Person Information | Susanne Maeder,
GIS Data Coordinator Minnesota Land Management Information Center (LMIC) 330 Centennial Building; 658 Cedar Street St. Paul, Minnesota 55155 Phone: 651.201.2488 FAX: 651.296.3698 E-mail: clearing.house@state.mn.us |
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| Metadata Standard Name | Minnesota Geographic Metadata Guidelines | |||
| Metadata Standard Version | 1.2 | |||
| Metadata Standard Online Linkage | http://www.lmic.state.mn.us/gc/stds/metadata.htm | |||
This page last updated: 06/05/2009