Illinois State Geological Survey 1984 20040422 vector digital data ISGS GIS Database GISDB_QTGEO.IL_Quat_Geology_500K_1979_Py Champaign, Illinois Illinois State Geological Survey http://www.isgs.illinois.edu/ http://illinois.edu Digital representation of the Quaternary Deposits in Illinois map by Lineback (1979). Map scale is 1:500,000. Shows Quaternary deposits that lie at or near the land surface, including loess deposits. For use in applications requiring generalized information for surface deposits in Illinois. 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. Recent updates to the data: In April 2004 edition 1.1 of the data set was transitioned to storage in an Oracle RDBMS using the ArcSDE geodatabase model. The result (this version) is designated Edition 20040422. Edition 1.1 had one minor update from previous edition (ver. 1.0). A polygon was deleted. See process steps. 1979 Publication date of source Complete None planned -91.4244 -87.3840 42.4951 36.9540 none geology quaternary surficial loess silt sand gravel till alluvium colluvium none Illinois none Quaternary 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. 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 The original coverage was generated in 1984 by Environmental Systems Research Institute as one component of a multi-layer Integrated Terrain Unit (ITU) database. Attribute accuracy was subsequently reviewed by ISGS personnel. Details of this review are unavailable. No report. This is good representation of Lineback's 1979 map, but there are differences. Polygons on the source map of less than one square mile in area or less than one half mile in width are not included. Other narrow polygons shown on the source map are not reflected in the data set, possibly due to polygon collapse. As a result, overlay with the published map shows significant differences in some areas. This data can only be used to show the generalized Quaternary boundaries within Illinois. An improved version is in preparation. This coverage was generated by Environmental Systems Research Institute as one component of a multi-layer Integrated Terrain Unit (ITU) database. Automation was limited to polygons with area of one square mile or greater and linear features greater than one-half mile in width. Boundaries which were generally coincident with boundaries of other ITU layers (e.g., soil associations or surface water bodies) may have been adjusted to be exactly coincident. Overlay with the published map shows significant differences in some areas. This data can only be used to show the generalized Quaternary boundaries within Illinois. J.A. Lineback, Illinois State Geological Survey 1979 map ISGS map none Champaign, Illinois, USA Illinois State Geological Survey 500000 unknown 1979 publication date none linework and attributes Description of initial processing steps not available Unknown Polygon from version 1.0 was deleted. (quat79#=2161, see the superceded coverage). Polygon was deleted because it portrayed a large body of water in Perry County that does not exist. The affected area was DISSOLVED into the surrounding polygon (Vandalia Till Member). New coverage retained the same name - is now version 1.1. 20001030 Source coverage (quat79) converted to double precision and reprojected to GCS_NAD83 using Workstation ArcInfo 7.2.1. The features were imported into the ISGS SDE enterprise database following steps outlined in ISGS procedure GISDB_0009. Metadata updated. 20040422 Vector G-polygon 2460 0.000001 0.000001 Decimal degrees North American Datum of 1983 Geodetic Reference System 80 6378137.000000 298.257222 Attribute items are in typical SDE feature class format. Those requiring additional explanation are: QAT-GEO - Defines the name of the geologic unit and indicates whether or not the unit is a moraine. The first four digits indicate unit name, as shown in the table below. The first four digits are identical to the item QUAT. The final digit is the moraine qualifier and is identical to the item QUAL. UNIT - Name of the geologic unit. See table below. QUAT - Number indicating name of the geologic unit. See table below. SYMBOL - Map symbol from the published map, corresponding to name and number of unit. See table below. QUAL - Indicates whether or not unit is a moraine 0 - not a moraine 1 - unit is a moraine 9 - water ABUNIT - Abbreviated unit name. This is the same as the first ten characters of UNIT. QUAT SYMBOL UNIT 50 c cahokia alluvium (includes alluvial fan facies) 60 gl grayslake peat 70 pl parkland sand 90 py peyton colluvium 110 Imr ravinia sand member 149 pr peoria loess and roxana silt (includes peyton colluvium) 240 ec carmi member 250 ed dolton member 260 hm mackinaw member 270 hb batavia member 280 hw wasco member 410 ww wadsworth till member 420 wh haeger till member 430 wy yorkville till member 440 wm malden till member 450 ws snider till member 471 wt-a tiskilwa ablation drift 472 wt tiskilwa till 480 wb batestown till member 490 wp piatt till member 500 wd delavan till member 510 wf fairgrange till member 520 wlc lee center till member 530 we esmond till member 535 tr unnamed till member 660 wic capron till member 720 wia argyle till member 810 t teneriffe silt 820 pe pearl formation 830 gr radnor till member 840 gs sterling till member 860 gw winslow till member 870 gha hagarstown member 900 gh hulick till member 910 go ogle till member 920 gv vandalia till member 970 gk kellerville till member 1021 b banner formation till 1022 b-o banner formation outwash facies 1180 mg mounds gravel 9991 surface-mined area 9998 water 9999 not a quaternary deposit 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