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Coarse-grained Materials Within 50 Feet of the Ground Surface in Illinois

Federal Geographic Data Committee (FGDC) Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Riggs, M.H., D. Nelson, C.C. Abert
Publication_Date: 1997
Title: Coarse-grained Materials Within 50 Feet of the Ground Surface in Illinois
Edition: 2.0
Geospatial_Data_Presentation_Form: map
Series_Information:
Series_Name: ISGS GIS Database
Issue_Identification: aq50
Publication_Information:
Publication_Place: Champaign, Illinois
Publisher: Illinois State Geological Survey
Other_Citation_Details:
Scale is 1:250,000
Online_Linkage:
Description:
Abstract:
This map shows the distribution of coarse-grained materials and permeable bedrock within 50 feet of ground surface in Illinois. This includes bedrock, sand and gravel, and alluvial units with characteristics that suggest a potential to store or conduct groundwater and yield potable water to wells and springs. It was derived from stack-unit map data in the ISGS data set STACK-ST. Aquifers or potential aquifers on this map are defined as sand and gravel units at least five feet thick, sandstone at least ten feet thick, and fractured limestone or dolomite at least fifteen feet thick with a lateral extent of at least one square mile. Minor aquifers typically yield from five to seventy gallons of potable water per minute. Potable water is defined as water containing less than 2,500 mg/L of total dissolved solids. For use in this data set, the following stratigraphic units are considered to be aquifers or potential aquifers meeting these criteria: (although Cahokia Alluvium is primarily fine- grained, it is included because it contains numerous sand and gravel deposits.) Cahokia Alluvium Parkland Sand Equality Formation, Dolton Member Henry Formation Sand and gravel within Wedron Formation Sand and gravel within Winnebago Formation Pearl Formation (includes Hagarstown Member) Sand and gravel within Glasford Formation Mounds gravel and related units Cretaceous sediments, silts, sands, etc. Pennsylvanian rocks, mainly sandstones Mississippian rocks, mainly limestones, some sandstones Silurian and some Devonian rocks, mainly dolomite Ordovician and Cambrian rocks, mainly dolomite, some sandstone Coverage is intended to identify areas of Illinois where there is a potential for shallow aquifers to exist. These data are appropriate for regional thematic analysis.
Purpose:
Not Available
Supplemental_Information:
Not Available
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19960101
Ending_Date: Unknown
Currentness_Reference:Unknown
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: -91.5826
East_Bounding_Coordinate: -87.384
North_Bounding_Coordinate: 42.4956
South_Bounding_Coordinate: 36.9535
Keywords:
Theme:
Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS
Theme_Keyword_Thesaurus: ANCILLARY KEYWORDS
Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY
Theme_Keyword_Thesaurus: DATA SET LANGUAGE
Theme_Keyword: EARTH SCIENCE > BIOSPHERE > TERRESTRIAL ECOSYSTEMS > KARST LANDSCAPE
Theme_Keyword: EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > GROUND WATER > AQUIFERS
Theme_Keyword: EARTH SCIENCE > LAND SURFACE > EROSION/SEDIMENTATION > SEDIMENTS > SAND
Theme_Keyword: EARTH SCIENCE > LAND SURFACE > EROSION/SEDIMENTATION > SEDIMENTS > GRAVEL
Theme_Keyword: EARTH SCIENCE > LAND SURFACE > GEOMORPHOLOGY > KARST LANDFORMS/PROCESSES
Theme_Keyword: EARTH SCIENCE > SOLID EARTH > GEOMORPHIC LANDFORMS/PROCESSES > KARST LANDFORMS
Theme_Keyword: EARTH SCIENCE > SOLID EARTH > ROCKS/MINERALS/CRYSTALS > BEDROCK LITHOLOGY
Theme_Keyword: EARTH SCIENCE > SOLID EARTH > ROCKS/MINERALS/CRYSTALS > METAMORPHIC ROCKS
Theme_Keyword: EARTH SCIENCE > SOLID EARTH > ROCKS/MINERALS/CRYSTALS > SEDIMENTARY ROCKS
Theme_Keyword: Gis
Theme_Keyword: Geographic Information Systems
Theme_Keyword: Geology
Theme_Keyword: Aquifer
Theme_Keyword: Sand
Theme_Keyword: Gravel
Theme_Keyword: Hydrology
Theme_Keyword: Surficial
Theme_Keyword: Coarse Grain
Theme_Keyword: BIOTA
Theme_Keyword: GEOSCIENTIFIC INFORMATION
Theme_Keyword: ENGLISH
Place:
Place_Keyword_Thesaurus: GCMD
Place_Keyword: CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > ILLINOIS
Access_Constraints: None
Use_Constraints:
Suitable for regional applications only (1:250,000 scale or smaller). The Illinois State Geological Survey does not guarantee the validity or accuracy of these data. Data set is not to be redistributed. Any product that uses this data must cite the Illinois State Geological Survey. It is important to realize that characteristics which identify formations as potential aquifers do not imply that a particular unit is indeed an aquifer. For example, although Cahokia alluvium contains coarse-grained sand and gravel deposits which could store or conduct groundwater, it is predominantly a silty deposit associated with periodic flooding. Similarly, there are certainly existing shallow aquifers associated with other geologic formations not identified on this map. Because these data are generalized over a large areal extent, the user needs a good working knowledge of the geologic formations used here in order to derive valid and useful interpretations. Descriptions of the stratigraphic classifications used in this data set can be found in Willman and Frye, 1970, Pleistocene Stratigraphy of Illinois, ISGS Bulletin 94. Also, several of these stratigraphic units have since been reclassified. The user should consult Hansel and Johnson, 1996, Wedron and Mason Groups: Lithostratigraphic Reclassification of Deposits of the Wisconsin Episode, Lake Michigan Lobe Area, ISGS Bulletin 104. Reproduction or redistribution of copyrighted digital data sets or products derived therefrom outside of licensee's organization or entity is expressly forbidden. The only exception is redistribution to consultants working for the licensee, and then only for purposes, related to work for the licensee. Such consultants may not further reproduce or redistribute these data sets. None of these data shall be electronically duplicated on magnetic or optical media for use by others, in whole or in part, without permission of the appropriate custodial division within DNR. Any hardcopies utilizing DNR data sets shall clearly indicate their source. If the licensee has modified the data in any way they are obligated to describe the types of modifications they have performed on the hardcopy map. Licensee specifically agrees not to misrepresent DNR data sets, nor to imply that changes they made were approved by DNR. These data are not to be used for commercial profit.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: MATT RIGGS
Contact_Position: TECHNICAL CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Illinois State Geological Survey
Address: 615 East Peabody Drive
City: Champaign
State_or_Province: Illinois
Postal_Code: 61820
Country: USA
Contact_Voice_Telephone: 217-244-2425
Contact_Facsimile_Telephone: 217-333-2830
Contact_Electronic_Mail_Address: riggs@geoserv.isgs.uiuc.edu
Browse_Graphic:
Browse_Graphic_File_Name: http://www.isgs.uiuc.edu/nsdihome/browse/statewide/aq50b.gif
Browse_Graphic_File_Description:
Coarse-grained Materials Within 50 Feet of the Ground Surface in Illinois
Browse_Graphic_File_Type: GIF
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Not Available
Logical_Consistency_Report:
Not Available
Completeness_Report:
Not Available
Lineage:
Process_Step:
Process_Description:
Not Available
Process_Date: Unknown
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Spatial_Reference_Information:
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: IL/DNR/GS > Geological Survey, Dept. of Natural Resources, Illinois
Contact_Person: DATABASE ADMINISTRATOR ILLINOIS STATE GEOLOGICAL SURVEY
Contact_Position: DATA CENTER CONTACT
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: 217-333-5102
Contact_Facsimile_Telephone: 217-333-2830
Contact_Electronic_Mail_Address: denhart@nomad.isgs.uiuc.edu
Resource_Description: IGDNR_ALLST_AQ50
Distribution_Liability:
Not Available
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: Arc/Info export format
Transfer_Size: 13.7MB
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://www.isgs.uiuc.edu/
Access_Instructions:
DATA CENTER URL
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://www.isgs.uiuc.edu/nsdihome/browse/statewide...
Access_Instructions:
Data available in Arc/Info export format.
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://www.isgs.uiuc.edu/nsdihome/outmeta/aq50.htm...
Access_Instructions:
FGDC metadata on the Coarse-grained Materials Within 50 Feet of the Ground Surface in Illinois.
Fees: No Fees
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Metadata_Reference_Information:
Metadata_Date: 20040304
Metadata_Review_Date: 20090326
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: TYLER B. STEVENS
Contact_Position: DIF AUTHOR
Contact_Address:
Address_Type: Mailing and Physical Address
Address: NASA Goddard Space Flight Center
Address: Global Change Master Directory
City: Greenbelt
State_or_Province: MD
Postal_Code: 20771
Country: USA
Contact_Voice_Telephone: (301) 614-6898
Contact_Facsimile_Telephone: 301-614-5268
Contact_Electronic_Mail_Address: Tyler.B.Stevens@nasa.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
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