Illinois State Geological Survey 2005 20071018 vector digital data ISGS GIS Database GISDB_BEDGEO.IL_Bedrock_Geology_500K_2005 Champaign, Illinois Illinois State Geological Survey The map scale is 1:500,000 http://www.isgs.illinois.edu/ http://illinois.edu Dennis Kolata, compiler 2005 map Illinois Map Series 14 Champaign, Illinois Illinois State Geological Survey This feature dataset shows the distribution and extent of the bedrock geologic units within the State of Illinois, as depicted on the map Bedrock Geology of Illinois (2005) by D. Kolata (compiler), published by the Illinois State Geologic Survey. The component feature classes show geologic units (polygons) and faults (lines.) The nominal scale of the published hardcopy map is 1:500,000. In some areas data of greater scale were generalized and incorporated. This data set was compiled to replace/update the existing feature dataset (IL_Bedrock_Geology_500K_1967), based on the 1967 Willman et al. Geologic Map of Illinois. The data can be used for any project which requires bedrock data at a scale of 1:500,000. This data should not be used at a scale larger than 1:500,000. Not suitable for site specific work. The data are not appropriate as a geodetic, legal or engineering base. The data set was not and is not intended as a substitute for surveyed locations, such as can be determined by a registered Public Land Surveyor. Although useful in a GIS as a reference base layer for maps, the data set has no legal basis in the definition of boundaries or property lines. 2005 publication date Complete As needed -91.5826823 -87.38401652 42.49563968 36.95351896 none geology bedrock Illinois basin none state Illinois none Tertiary Cretaceous Pennsylvanian Mississippian Devonian Silurian Ordovician Cambrian 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. 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. Please refer to the Distribution Information section. D. Kolata, P. Weibel, J. Nelson, C. McGarry, J. Devera, B. Denny, et al. ArcSDE 9.1 on Oracle 10g http://www.isgs.illinois.edu http://www.vpaa.uillinois.edu/policies/web_privacy.cfm http://www.uillinois.edu/trustees/rules.cfm#sec34 http://www.fs.uiuc.edu/cam/CAM/viii/viii-1.1.html No report. No report. This data set contains geologic units and fault lines as depicted on the source map. There are many additional features on the source map that are not depicted in this digital data set, for example, geologic columns, cross-sections and other thematic insets. Quaternary materials are not shown. Data were compiled from areas mapped at difference scales. Scale varies across the map. Some source data were generalized. The smallest scale of data used is 1:500,000, and that is the scale of the published map. Geologic unit boundaries are approximate. Vector G-polygon 1200 String 2850 0.000001 0.000001 Decimal degrees North American Datum of 1983 Geodetic Reference System 80 6378137.000000 298.257222 GISDB_BEDGEO.IL_Geologic_Units_500K_2005_Py Shape Feature geometry. ESRI Coordinates defining the features. OBJECTID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. PYCODE arbitrary numeric identifier 2 Cambrian System 3 New Albany Shale 4 Muscatatuck Group 5 Tamms Group 6 Cretaceous System 7 Upper Pope Group 8 Lower Pope Group 9 St. Louis Limestone 10 Ste. Genevieve Limestone 11 Warsaw Fm and Salem Ls. in western Illinois 12 Meppen Ls, Fern Glen Fm, Burlington-Keokuk Ls. 13 Gen Park Fm, Hannibal Sh, Chouteau Ls, McCraney Ls, Prospect Hill St, and Starrs Cave Ls 14 Maquoketa Shale Group 15 Galena Group 16 Platteville Group 17 Ancell group 18 Prairie du Chien Group 19 Mattoon Fm 20 Bond Fm 21 Shelburn-Patoka Fms undivided 22 Carbondale Fm 23 Tradewater Fm 24 Caseyville Fm 25 Silurian System 26 Tertiary System 27 Tertiary and Cretaceous Systems undivided 28 Permian ultramafic intrusions 29 Paleozoic undivided 30 Kimmswick Ls and Decorah Fm 31 Ft. Payne Fm, includes Springville Sh and Chouteau Ls in southern IL 32 Ullin and Salem Ls in southern IL 33 Baylis Fm 35 Bordon St, includes Chouteau Ls in east-central IL 999 not a geologic unit ABBREV LITHNAME Shape_Length Length of feature in internal units. ESRI Positive real numbers that are automatically generated. Shape_Area Area of feature in internal units squared. ESRI Positive real numbers that are automatically generated. GISDB_BEDGEO.IL_Bedrock_Faults_500K_2005_Ln There are no user-defined attributes for the faults (line) feature class. Information Office, Illinois State Geological Survey (ISGS), a division of the Institute of Natural Resource Sustainability (INRS) of the University of Illinois mailing and physical address

615 East Peabody Drive

Champaign Illinois 61820 USA 217-333-4747 217-785-0211 isgs@isgs.illinois.edu 8:00 a.m. - 4:30 p.m., Monday-Friday, U.S. Central Time 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. 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. 20090224 Please refer to the Distribution Information section. FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 local time The access constraints as stated for the data apply also to the metadata. Refer to the Access Constraints section of the Identification Information section. The use constraints as stated for the data apply also to the metadata. Refer to the Use Constraints section of the Identification Information section. http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile