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Public stratigraphic data points of the Springfield Coal in Illinois

Metadata also available as - [Questions & Answers] - [Parseable text] - [DIF]

Metadata:

Identification_Information
Data_Quality_Information
Spatial_Data_Organization_Information
Spatial_Reference_Information
Entity_and_Attribute_Information
Distribution_Information
Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: U.S. Geological Survey Central Region Energy Resources Team

Publication_Date: 2002

Title:

Public stratigraphic data points of the Springfield Coal in Illinois

Geospatial_Data_Presentation_Form: map

Series_Information:

Series_Name: U.S. Geological Survey Professional Paper
Issue_Identification: 1625-D

Publication_Information:

Publication_Place: Denver, Colorado
Publisher: U.S. Geological Survey

Larger_Work_Citation:

Citation_Information:

Originator: J.R. Hatch (ed.)

Originator: R.H. Affolter (ed.)

Publication_Date: 2002

Title:

Resource Assessment of the Springfield, Herrin, and Danville and Baker Coals in the Illinois Basin

Series_Information:

Series_Name: U.S. Geological Survey Professional Paper
Issue_Identification: 1625-D

Publication_Information:

Publication_Place: Denver, Colorado
Publisher: U.S. Geological Survey

Larger_Work_Citation:

Citation_Information:

Originator: U.S. Geological Survey

Publication_Date: 2002

Title: National Coal Resource Assessment

Series_Information:

Series_Name: U.S. Geological Survey Professional Paper
Issue_Identification: 1625

Publication_Information:

Publication_Place: Denver, Colorado
Publisher: U.S. Geological Survey

Description:

Abstract:: ASCII database of stratigraphic information for the Danville, Herrin, and Springfield Coals from over 25,000 drill hole and outcrop descriptions of Pennsylvanian stratigraphy. Coordinates have been calculated for each point location.
ILSTRAT.ASC is an ASCII file that contains one record per data point. Data provided are ID, coordinates, well type, log type surface elevation, and elevation and thickness of the three coals. Data are in fixed fields that are also comma delimited.
This file is a subset of the ISGS Coal Section's Stratigraphic Database, an archive of stratigraphic data compiled by ISGS staff for various projects (primarily related to coal resources, structure, and mining geology) dating back to 1938.
Purpose:: These data were compiled for the National Coal Resources Data System (NCRDS) and the National Coal Assessment of the U.S. Geological Survey (USGS). The complete data base is available from the USGS. This file presents the thickness and elevation data on three of the most important coal seams in Illinois. The data are useful for creating structure or isopachs of the coal seams to aid in exploration for coal, coalbed methane, or oil and gas.
Supplemental_Information:: This file contains all corrections and additions made to the database as of October 1, 1998.

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 199810

Currentness_Reference: publication date

Status:

Progress: Complete
Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -91.4244
East_Bounding_Coordinate: -87.3840
North_Bounding_Coordinate: 42.4951
South_Bounding_Coordinate: 36.9540

Keywords:

Theme:

Theme_Keyword_Thesaurus: none
Theme_Keyword: geology
Theme_Keyword: coal
Theme_Keyword: mineral
Theme_Keyword: resources
Theme_Keyword: stratigraphy

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Categories
Theme_Keyword: geoscientificInformation

Place:

Place_Keyword_Thesaurus: none
Place_Keyword: Illinois

Place:

Place_Keyword_Thesaurus: Augmented FIPS 10-4 and FIPS 6-4, version 1.0
Place_Keyword: 17099 = La Salle
Place_Keyword: 17011 = Bureau
Place_Keyword: 17073 = Henry
Place_Keyword: 17155 = Putnam
Place_Keyword: 17175 = Stark
Place_Keyword: 17095 = Knox
Place_Keyword: 17123 = Marshall
Place_Keyword: 17105 = Livingston
Place_Keyword: 17143 = Peoria
Place_Keyword: 17203 = Woodford
Place_Keyword: 17113 = McLean
Place_Keyword: 17179 = Tazewell
Place_Keyword: 17057 = Fulton
Place_Keyword: 17183 = Vermilion
Place_Keyword: 17019 = Champaign
Place_Keyword: 17107 = Logan
Place_Keyword: 17039 = De Witt
Place_Keyword: 17147 = Piatt
Place_Keyword: 17129 = Menard
Place_Keyword: 17017 = Cass
Place_Keyword: 17115 = Macon
Place_Keyword: 17167 = Sangamon
Place_Keyword: 17045 = Edgar
Place_Keyword: 17041 = Douglas
Place_Keyword: 17137 = Morgan
Place_Keyword: 17021 = Christian
Place_Keyword: 17139 = Moultrie
Place_Keyword: 17029 = Coles
Place_Keyword: 17173 = Shelby
Place_Keyword: 17135 = Montgomery
Place_Keyword: 17117 = Macoupin
Place_Keyword: 17061 = Greene
Place_Keyword: 17023 = Clark
Place_Keyword: 17035 = Cumberland
Place_Keyword: 17083 = Jersey
Place_Keyword: 17051 = Fayette
Place_Keyword: 17049 = Effingham
Place_Keyword: 17033 = Crawford
Place_Keyword: 17079 = Jasper
Place_Keyword: 17005 = Bond
Place_Keyword: 17119 = Madison
Place_Keyword: 17025 = Clay
Place_Keyword: 17101 = Lawrence
Place_Keyword: 17159 = Richland
Place_Keyword: 17121 = Marion
Place_Keyword: 17027 = Clinton
Place_Keyword: 17163 = St. Clair
Place_Keyword: 17191 = Wayne
Place_Keyword: 17047 = Edwards
Place_Keyword: 17185 = Wabash
Place_Keyword: 17189 = Washington
Place_Keyword: 17081 = Jefferson
Place_Keyword: 17193 = White
Place_Keyword: 17065 = Hamilton
Place_Keyword: 17157 = Randolph
Place_Keyword: 17145 = Perry
Place_Keyword: 17055 = Franklin
Place_Keyword: 17077 = Jackson
Place_Keyword: 17059 = Gallatin
Place_Keyword: 17165 = Saline
Place_Keyword: 17199 = Williamson
Place_Keyword: 17063 = Grundy
Place_Keyword: 17169 = Schuyler

Access_Constraints: none

Use_Constraints: none

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Colin Treworgy
Contact_Organization: Illinois State Geological Survey

Contact_Address:

Address_Type: mailing address
Address: 615 East Peabody Drive
City: Champaign
State_or_Province: Illinois
Postal_Code: 61820
Country: USA

Contact_Voice_Telephone: 217-244-2422

Contact_Facsimile_Telephone: 217-333-2830

Contact_Electronic_Mail_Address: colin@geoserv.isgs.uiuc.edu

Hours_of_Service: 8:00 a.m. - 5:00 p.m., Monday-Friday

Data_Set_Credit:

Database Administrator: Colin Treworgy
Data entry: ISGS Coal Section staff
Documentation: Colin Treworgy, D. Nelson and S. Beaverson
Quality Control: ISGS Staff

Native_Data_Set_Environment: SunOS UNIX, INFO

Cross_Reference:

Citation_Information:

Originator: Illinois State Geological Survey

Publication_Date: 1998

Title: Coal Quality INFO Database

Geospatial_Data_Presentation_Form: online database

Series_Information:

Series_Name: ISGS Coal Section GIS Database
Issue_Identification: please contact Point of Contact

Publication_Information:

Publication_Place: Champaign, Illinois
Publisher: Illinois State Geologic Survey

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:: Accuracy of attribute information is variable, depending on the source materials and the geologist. Some logs are precise measurements of thickness and depth, others may have errors or be rounded. Geologic correlations are, of course, open to other interpretations. In general: measurements from core descriptions and coal test geophysical logs are accurate to within fractions of an inch; measurements from drillers logs may be accurate to within an inch to 5 feet, depending on the equipment used and the experience of the on-site geologist; measurements from oil test geophysical logs are accurate to within +/- one foot.
Formal evaluation tests have not been run, but daily hands-on experience using the data for real-life applications has proven the quality of the database. Experience suggests that less than 1% of the data contain errors that involve gross mis-location of points or mis-correlation of coals.

Completeness_Report:

The database was compiled by ISGS staff for various projects (primarily related to coal resources, structure, and mining geology) dating back to 1938. This subset was compiled for and is available from the USGS's National Coal Resources Data System. No attempt has been made to compile all available data. This file does not represent all the well records on file at the ISGS, nor should the absence of data for one or more coals for a specific data point be interpreted to mean that those coals are not present.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:: Concerning the accuracy of horizontal coordinate measurements, there is considerable variability depending on the source material. Some holes have surveyed locations and are accurate to within a foot, others have only description to the nearest forty acres. Overall, the database administrator estimates that most points are within 500 feet of their correct locations, but no scientific tests have been done to verify this.

Lineage:

Process_Step:

Process_Description:: Initially, data are entered into a set of temporary holding files. A series of programs is then run to convert certain fileds to numeric codes and to calculate values for other fields. Legal location descriptions are converted to coordinates and a program then determines in which quadrangle each point is located. Another program checks the database to see if other descriptions of that point have been previously entered. If other descriptions are located, a version number is assigned to the new description.

Process_Step:

Process_Description:: Following data entry and conversion to codes, a number of programs are run to catch errors before before final loading of new data into the database. These programs catch most errors made in compiling or encoding stratigraphic data.

Process_Step:

Process_Description:: The Coal Stratigraphic Data were extracted from the main stratigraphic data base. The criteria for extraction individual points were that one or more of the three coals had been correlated at a point, the precise location of the point was known, and that the data were not proprietary.
Process_Date: 199810

Process_Step:

Process_Description: Some corrections were made to the data.
Process_Date: 19981001

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Point

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geodetic_Model:

Horizontal_Datum_Name: NAD27
Ellipsoid_Name: CLARKE1866
Semi-major_Axis: 6378206.4 meters
Denominator_of_Flattening_Ratio: 294.98

Entity_and_Attribute_Information:

Overview_Description:

Entity_and_Attribute_Overview:

The data are in fixed fields with each field separated by a comma. Blanks in a field indicate no value.

DATAFILE NAME: ILSTRAT.ASC
A file consisting of one record for each data point.

8 ITEMS: STARTING IN POSITION    1
COL  ITEM NAME    WIDTH  TYPE N.DEC
   IDS           14     C    -    ISGS identification number
  DEC-LONGITUDE 14     N    8    Longitude in decimal degrees
  DEC-LATITUDE  14     N    8    Latitude in decimal degrees
  SURFELV        6     N    1    Surface elevation (feet)
  WELLTYPE      12     C    -    Well type
  LOGTYPE       12     C    -    Log type
  TOP-SPRING     7     N    2    Elev. of top: Springfield Coal (ft)
  THICK-SPRING   7     N    2    Thickness of Springfield (ft)

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: USGS Information Services

Contact_Address:

Address_Type: mailing address
Address: Box 25286 Denver Federal Center
City: Denver
State_or_Province: CO
Postal_Code: 80225
Country: USA

Contact_Voice_Telephone: 1-888-ASK-USGS

Contact_Facsimile_Telephone: 303-202-4693

Contact_Electronic_Mail_Address: ask@usgs.gov

Resource_Description: USGS Professional Paper 1625-D

Distribution_Liability:

This Compact Disc-Read Only Memory (CD-ROM) publication was prepared by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed in this report, or represents that its use would not infringe privately owned rights. Reference therein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof.
Although all data and software published on this CD-ROM are used by the U.S. Geological Survey, no warranty, expressed or implied, is made by the U.S. Geological Survey as to the accuracy of the data and related materials and (or) the functioning of the software. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the U.S. Geological Survey in the use of these data, software, or related materials.

Standard_Order_Process: