Identification_Information: Citation: Citation_Information: Originator: C. P. Weibel Originator: S. V. Panno Publication_Date: 1997 Title: Sinkhole Areas (an indicator of karst terrain) in Illinois Edition: 20040408 Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: ISGS GIS Database Issue_Identification: GISDB_HYDRO.IL_Sinkhole_Areas_Py Publication_Information: Publication_Place: Champaign, Illinois Publisher: Illinois State Geological Survey Online_Linkage: http://www.isgs.illinois.edu/ Online_Linkage: http://illinois.edu Description: Abstract: This feature class shows the distribution of areas that contain one or more sinkholes throughout the state of Illinois. Areas that contain sinkholes are susceptible to aquifer contamination and may also lack the stability required for certain land-uses. Sinkholes are one of the major indicators of karst terrains. This map provides basic data for land-use planning and decision making. Purpose: Sinkhole data can be used to appraise local, regional, and general geologic conditions that might affect excavation and construction of roads, pipelines, foundations, and sewers, and construction of wells. These sinkhole data are useful for local planning of surface projects which may have an impact on shallow aquifers. The data are useful for regional land-use planning projects designed to protect shallow karst aquifers. This map may be useful for the exploration and exploitation of limestone. Karstification may have an effect on the evaluation of limestone resources and an impact on the groundwater during limestone extraction. These data are appropriate for use in regional thematic analysis. The data are not appropriate as a geodetic, legal or engineering base. The datasets were not and are not intended as a substitute for surveyed locations, such as can be determined by a registered Public Land Surveyor. Although useful in a GIS, the data have no legal basis in the definition of boundaries or property lines. Supplemental_Information: This is edition 20040408, derived from edition 2.0. In April 2004 the source coverage was transitioned to storage in an Oracle RDBMS using the ArcSDE geodatabase model. The result (this version) is designated edition 20040408. Prior to this time the feature classe was stored as a coverage in the ISGS GISDB archive. Edition 2.0 differed from edition 1.0 in that some sinkhole polygons in northwestern Illinois were deleted after field examination suggested that the depressions may have an origination other than by sinkhole formation. In addition, additional sinkhole area polygons were added in southern, southwestern, and western Illinois. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 19921103 Ending_Date: 19970203 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: Irregular Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -91.4244 East_Bounding_Coordinate: -87.3840 North_Bounding_Coordinate: 42.4951 South_Bounding_Coordinate: 37.1756 Keywords: Theme: Theme_Keyword_Thesaurus: none Theme_Keyword: aquifer Theme_Keyword: groundwater Theme_Keyword: water Theme_Keyword: hydrology Theme_Keyword: hydrogeology Theme_Keyword: karst Theme_Keyword: geology Theme_Keyword: sinkhole Theme_Keyword: bedrock Theme_Keyword: hazard Place: Place_Keyword_Thesaurus: none Place_Keyword: Illinois Access_Constraints: ISGS information must be obtained directly from the ISGS or from an authorized distributor. Be aware that ISGS information obtained from an unauthorized third party may have been altered subsequent to original distribution, or may no longer be current. Any access to these data, Web sites, computer systems, electronic services, and electronic networks is governed by University and campus policies, in particular, but not limited to, the Policy on Appropriate Use of Computers and Network Systems at the University of Illinois at Urbana-Champaign, the ISGS Terms of Use document available at the ISGS Web site, and the University of Illinois Web Privacy Notice. Links to these are provided in the Cross References section. Use_Constraints: This feature class is for use at a scale of 1:100,000. ISGS information is the property of and copyrighted by the Board of Trustees of the University of Illinois with all rights reserved.  University copyright policy is stated in the General Rules Concerning University Organization and Procedure, Article III, Section 4. A link is provided in the Cross References section. Individuals or entities may make fair use of copyrighted ISGS material, such as reproducing a single figure or table, or using a brief text quotation, without obtaining formal permission, but in all cases the Illinois State Geological Survey must be credited as the source of the material. To reproduce ISGS information beyond the fair use standard, permission must be obtained from the ISGS Information Office, 615 East Peabody Drive, Champaign, Illinois 61820, 217-333-4747, isgs@isgs.illinois.edu. License fees and a license agreement may be required, depending on the proposed usage. Any use of these data is governed by University and campus policies, in particular, but not limited to, the Policy on Appropriate Use of Computers and Network Systems at the University of Illinois at Urbana-Champaign, the ISGS Terms of Use document available at the ISGS Web site, and the University of Illinois Web Privacy Notice. Links to these are provided in the Cross References section. Map information is to be used at a scientifically and cartographically appropriate scale, that is, at a scale no greater than indicated on the map or as described in the documentation of the map or map data.  Map information is not appropriate for, and is not to be used as, a geodetic, legal, or engineering base. Map information has no legal basis in the definition of boundaries or property lines and is not intended as a substitute for surveyed locations such as can be determined by a registered Public Land Surveyor. The data do not replace the need for detailed site-specific studies. Point_of_Contact: Contact_Information: Contact_Instructions: Please refer to the Distribution Information section. Native_Data_Set_Environment: ArcSDE 9.1 on Oracle 10g Cross_Reference: Citation_Information: Title: ISGS Terms of Use Online_Linkage: http://www.isgs.illinois.edu Cross_Reference: Citation_Information: Title: University of Illinois Web Privacy Notice Online_Linkage: http://www.vpaa.uillinois.edu/policies/web_privacy.cfm Cross_Reference: Citation_Information: Title: University Copyright Policy (stated in the General Rules Concerning University Organization and Procedure, Article III, Section 4) Online_Linkage: http://www.uillinois.edu/trustees/rules.cfm#sec34 Cross_Reference: Citation_Information: Title: Policy on Appropriate Use of Computers and Network Systems at the University of Illinois at Urbana-Champaign Online_Linkage: http://www.fs.uiuc.edu/cam/CAM/viii/viii-1.1.html Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Attribute code assignments were checked by at least two individuals and are believed to fully represent the original hand-drawn maps. Logical_Consistency_Report: When this data set was in coverage form it was checked for complete chain-node topology (no dangling arcs, except where appropriate), boundary values appropriate for map projection and map units, and appropriate "fuzzy" tolerances. There are no known arc or polygon attribute values outside the appropriate value domains. Completeness_Report: This data set contains polygons indicating areas which are believed to contain sinkholes. Some sinkholes may not be represented on this map because of detection problems (primarily because of too small of a size, and dense vegetation cover). Not every sinkhole polygon was field checked. Therefore, it is possible that some depressions within the mapped polygons may have an origin different from sinkhole formation. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Boundaries of sinkhole area polygons represent actual ground positions, but are generalized. Thus, this data set should not be used at map scales larger than 1:100,000 without specific field verification. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Bell, A. H., M. O. Oros, and J. Van Den Berg Publication_Date: 1961 Title: Petroleum Industry in Illinois, 1960 Series_Information: Series_Name: ISGS Illinois Petroleum Issue_Identification: 75 Publication_Information: Publication_Place: Champaign, Illinois Publisher: Illinois State Geological Survey Other_Citation_Details: 121 p. Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1960 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: none Source_Contribution: not available Source_Information: Source_Citation: Citation_Information: Originator: Bretz, J H. Publication_Date: 1923 Title: Geology and Mineral Resources of the Kings Quadrangle Series_Information: Series_Name: Illinois State Geological Survey Bulletin Issue_Identification: 43 Publication_Information: Publication_Place: Champaign, Illinois Publisher: Illinois State Geological Survey Source_Scale_Denominator: n/a Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1923 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: none Source_Contribution: p. 205-304 Source_Information: Source_Citation: Citation_Information: Originator: Bretz, J H. Publication_Date: 1940 Title: Solution cavities in the Joliet Limestone of northeastern Illinois Series_Information: Series_Name: Journal of Geology Issue_Identification: v. 46 Publication_Information: Publication_Place: Chicago, Illinois Publisher: University of Chicago Source_Scale_Denominator: n/a Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1940 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: none Source_Contribution: p. 337-384 Source_Information: Source_Citation: Citation_Information: Originator: Buschbach, T.C., and G.E. Heim Publication_Date: 1972 Title: Preliminary geologic investigations of rock tunnel sites for flood and pollution control in the greater Chicago area Series_Information: Series_Name: Illinois State Geological Survey Environmental Geology Notes Issue_Identification: 52 Publication_Information: Publication_Place: Champaign, Illinois Publisher: Illinois State Geological Survey Other_Citation_Details: 35 p. Source_Scale_Denominator: n/a Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1972 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: none Source_Contribution: not available Source_Information: Source_Citation: Citation_Information: Originator: Csallany, S., and W.C. Walton Publication_Date: 1963 Title: Yields of shallow dolomite wells in northern Illinois Series_Information: Series_Name: Illinois State Water Survey Report of Investigation Issue_Identification: 46 Publication_Information: Publication_Place: Champaign, Illinois Publisher: Illinois State Geological Survey Other_Citation_Details: 43 p. Source_Scale_Denominator: n/a Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1963 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: none Source_Contribution: not available Source_Information: Source_Citation: Citation_Information: Originator: Devera, J.A. Publication_Date: 1993 Title: Geologic Map of the Wolf Lake Quadrangle, Jackson and Union Counties, Illinois Geospatial_Data_Presentation_Form: map Source_Scale_Denominator: 24000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1993 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: none Source_Contribution: not available Source_Information: Source_Citation: Citation_Information: Originator: Ford, D.C., and P.W. Williams Publication_Date: 1989 Title: Karst Geomorphology and Hydrology Publication_Information: Publication_Place: London Publisher: Unwin Hyman Ltd. Other_Citation_Details: 601 p. Source_Scale_Denominator: n/a Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1989 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: none Source_Contribution: not available Source_Information: Source_Citation: Citation_Information: Originator: Graese, A.M. Publication_Date: 1991 Title: Facies Analysis of the Ordovician Maquoketa Group and Adjacent Strata in Kane County, Northeastern Illinois Series_Information: Series_Name: ISGS Circular Issue_Identification: 547 Publication_Information: Publication_Place: Champaign, Illinois Publisher: Illinois State Geological Survey Source_Scale_Denominator: n/a Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1991 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: none Source_Contribution: not available Source_Information: Source_Citation: Citation_Information: Originator: Hackett, J.E., and R.E. Bergstrom Publication_Date: 1956 Title: Groundwater in northwestern Illinois Series_Information: Series_Name: ISGS Circular Issue_Identification: 207 Publication_Information: Publication_Place: Champaign, Illinois Publisher: Illinois State Geological Survey Source_Scale_Denominator: n/a Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1956 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: none Source_Contribution: not available Source_Information: Source_Citation: Citation_Information: Originator: Knappen, R.S. Publication_Date: 1926 Title: Geology and Mineral Resources of the Dixon Quadrangle Series_Information: Series_Name: Illinois State Geological Survey Bulletin Issue_Identification: 49 Publication_Information: Publication_Place: Champaign, Illinois Publisher: Illinois State Geological Survey Other_Citation_Details: 141 p. Source_Scale_Denominator: n/a Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1926 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: none Source_Contribution: not available Source_Information: Source_Citation: Citation_Information: Originator: Kolata, D.R., and T.C. Buschbach Publication_Date: 1976 Title: Plum River Fault Zone of Northwestern Illinois Series_Information: Series_Name: ISGS Circular Issue_Identification: 491 Publication_Information: Publication_Place: Champaign, Illinois Publisher: Illinois State Geological Survey Source_Scale_Denominator: n/a Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1976 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: none Source_Contribution: not available Source_Information: Source_Citation: Citation_Information: Originator: Kolata, D.R., T.C. Buschbach, and J.D. Treworgy Publication_Date: 1978 Title: The Sandwich Fault Zone of Northern Illinois Series_Information: Series_Name: ISGS Circular Issue_Identification: 505 Publication_Information: Publication_Place: Champaign, Illinois Publisher: Illinois State Geological Survey Other_Citation_Details: 26 p. Source_Scale_Denominator: n/a Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1978 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: none Source_Contribution: not available Source_Information: Source_Citation: Citation_Information: Originator: Lamar, J.E. Publication_Date: 1928 Title: Karst Topography and Sanitary Engineering at Alton, Illinois Series_Information: Series_Name: Trns. IL St Acad Sci Issue_Identification: 20 Source_Scale_Denominator: n/a Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1928 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: none Source_Contribution: p. 261-264 Source_Information: Source_Citation: Citation_Information: Originator: Otto, G.H Publication_Date: 1963 Title: Engineering Geology of the Chicago Area, in Foundation Engineering in the Chicago Area Series_Information: Series_Name: Proceedings of Lecture Series, American Society of Civil Engineers Issue_Identification: N/A Publication_Information: Publication_Place: Chicago, Illinois Publisher: Illinois Institute of Technology Source_Scale_Denominator: n/a Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1963 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: none Source_Contribution: 3.1-3.24. Source_Information: Source_Citation: Citation_Information: Originator: Piskin, K., and R.E. Bergstrom Publication_Date: 1975 Title: Glacial Drift in Illinois: Thickness and Character Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: Illinois State Geological Survey Circular Issue_Identification: 490 Publication_Information: Publication_Place: Champaign, Illinois Publisher: Illinois State Geological Survey Other_Citation_Details: 35 p. Source_Scale_Denominator: n/a Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1975 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: none Source_Contribution: not available Source_Information: Source_Citation: Citation_Information: Originator: Rubey, W.W. Publication_Date: 1952 Title: Geology and Mineral Resources of the Hardin and Brussels Quad Series_Information: Series_Name: Professional Paper Issue_Identification: 218 Publication_Information: Publication_Place: unknown Publisher: United States Geological Survey Other_Citation_Details: 179 p. Source_Scale_Denominator: n/a Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1952 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: none Source_Contribution: not available Source_Information: Source_Citation: Citation_Information: Originator: Treworgy, J.D. Publication_Date: 1981 Title: Structural Features in Illinois: A Compendium Series_Information: Series_Name: Illinois State Geological Survey Circular Issue_Identification: 519 Publication_Information: Publication_Place: Champaign, Illinois Publisher: Illinois State Geological Survey Other_Citation_Details: 83 p. Source_Scale_Denominator: n/a Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1981 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: none Source_Contribution: not available Source_Information: Source_Citation: Citation_Information: Originator: White, W.B Publication_Date: 1988 Title: Geomorphology and Hydrology of Karst Terrains Publication_Information: Publication_Place: not available Publisher: Oxford University Press, Inc. Other_Citation_Details: 464 p. Source_Scale_Denominator: n/a Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1988 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: none Source_Contribution: not available Source_Information: Source_Citation: Citation_Information: Originator: Willman, H.B., and others Publication_Date: 1967 Title: Geologic Map of Illinois Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: Illinois State Geological Survey map Issue_Identification: same as title Publication_Information: Publication_Place: Champaign, Illinois Publisher: Illinois State Geological Survey Source_Scale_Denominator: 500000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1967 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: none Source_Contribution: not available Source_Information: Source_Citation: Citation_Information: Originator: Zeizel, A.J., W.C. Walton, T.A. Prickett, and R.T. Sasman Publication_Date: 1962 Title: Ground-water Resources of Du Page County Series_Information: Series_Name: Illinois State Geological Survey Illinois State Water Survey Cooperative Ground-Water Report Issue_Identification: Report 2 Other_Citation_Details: 103 p. Source_Scale_Denominator: n/a Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1962 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: none Source_Contribution: not available Process_Step: Process_Description: These data were digitized from USGS 1:100,000 topographic/planimetric maps upon which the original data were compiled. Process_Date: Unknown Process_Step: Process_Description: Reviews of data. Source map underwent ISGS peer review. Line accuracy was checked by overlay of digital print-outs to original compilation maps. Lines within one line-width of source maps were deemed acceptable. Attribute accuracy was verified against source maps. Process_Date: 1994-95 Process_Step: Process_Description: The source coverage (karst) was imported into an ArcSDE enterprise geodatabase feature dataset for storage. Previously it was stored as individual coverages. The data were reprojected from the customary ISGS Lambert Conformal Conic projection (NAD27) to a geographic coordinate system (longitude, latitude) in decimal degrees (NAD83). Prior to import, the spatial reference of the data set was changed to Geographic, decimal degrees, NAD83 in double precision. Also at this time, this metadata file was updated. Process_Date: 20040401 Process_Contact: Contact_Information: Contact_Person_Primary: Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: G-polygon Point_and_Vector_Object_Count: 847 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.000001 Longitude_Resolution: 0.000001 Geographic_Coordinate_Units: Decimal degrees Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1983 Ellipsoid_Name: Geodetic Reference System 80 Semi-major_Axis: 6378137.000000 Denominator_of_Flattening_Ratio: 298.257222 Vertical_Coordinate_System_Definition: Altitude_System_Definition: Entity_and_Attribute_Information: Overview_Description: Entity_and_Attribute_Overview: Attribute items are in typical SDE feature class format. Those requiring additional explanation are: KARST - a value of "y" indicates polygon represents a karst area SQMILES - area of the polygon in square miles Entity_and_Attribute_Detail_Citation: none Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: Information Office, Illinois State Geological Survey (ISGS), a division of the Institute of Natural Resource Sustainability (INRS) of the University of Illinois Contact_Address: Address_Type: mailing and physical address Address: 615 East Peabody Drive City: Champaign State_or_Province: Illinois Postal_Code: 61820 Country: USA Contact_Voice_Telephone: 217-333-4747 Contact_TDD/TTY_Telephone: 217-785-0211 Contact_Electronic_Mail_Address: isgs@isgs.illinois.edu Hours_of_Service: 8:00 a.m. - 4:30 p.m., Monday-Friday, U.S. Central Time Distribution_Liability: Refer to the Legal Notices of Terms and Conditions of the University of Illinois Web Privacy Policy (there is a link in the Cross References section) for policy statements regarding the following: Disclaimer of Liability Disclaimer of Warranties and Accuracy of Data Disclaimer of Endorsement Disclaimer for External Links Disclaimer of Duty to Continue Provision of Data Security Choice of Law By obtaining these data you agree to the provisions of the University of Illinois Web Privacy Policy, regardless of the manner in which the information was obtained. Technical_Prerequisites: The data are intended for use with GIS software. The ISGS uses ESRI ArcGIS software, however, ESRI formats can be imported into many different GIS software packages. It is expected that customers who obtain these data have the technical expertise to use GIS software. The ISGS does not provide software support of any kind. Metadata_Reference_Information: Metadata_Date: 20090224 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Instructions: Please refer to the Distribution Information section. Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time Metadata_Access_Constraints: The access constraints as stated for the data apply also to the metadata. Refer to the Access Constraints section of the Identification Information section. Metadata_Use_Constraints: The use constraints as stated for the data apply also to the metadata. Refer to the Use Constraints section of the Identification Information section. Metadata_Extensions: Online_Linkage: http://www.esri.com/metadata/esriprof80.html Profile_Name: ESRI Metadata Profile