Seismotectonic maps in the vicinity of the lower Wabash Valley, Illinois, Indiana, and Kentucky - Digital Spatial Database: Surface and near-surface faults

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Frequently anticipated questions:

What does this data set describe?

Title:
Seismotectonic maps in the vicinity of the lower Wabash Valley, Illinois, Indiana, and Kentucky - Digital Spatial Database: Surface and near-surface faults
Abstract:
This cover consists of surface and near-surface faults compiled by the Illinois Basin Consortium in a multiyear project. This part of the project ended around 1994 and resulted in a publication by the Gas Research Institute. The report, cited in a cross-reference, contains a paper map titled "Major structural features of the Illinois Basin." We received a digital copy of the map in dxf format, and edited it to include only the faults.
Our intent is to show the overall pattern of faults, and to show the location of the main exposed and near-surface faults for comparison to deep subsurface structures. We made little attempt to edit details of the digitized faults, beyond adding tick marks to indicate dip directions of a few normal faults. For details such as exact locations, fault dips, separations, and crosscutting relations, users should consult the original geologic maps cited in the Gas research Institute publication.
  1. How might this data set be cited?
    Rhea, Susan, 1997, Seismotectonic maps in the vicinity of the lower Wabash Valley, Illinois, Indiana, and Kentucky - Digital Spatial Database: Surface and near-surface faults: U.S. Geological Survey Open-File Report 97-0681, U.S. Geological Survey, Denver, CO.

    Online Links:

  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -88.244
    East_Bounding_Coordinate: -87.100
    North_Bounding_Coordinate: 38.502
    South_Bounding_Coordinate: 37.797
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
    Beginning_Date: 1994
    Ending_Date: 1994
    Currentness_Reference:
    publication date
  5. What is the general form of this data set?
    Geospatial_Data_Presentation_Form: map
  6. How does the data set represent geographic features?
    1. How are geographic features stored in the data set?
      This is a Vector data set. It contains the following vector data types (SDTS terminology):
      • Point (0)
      • String (73)
      • GT-polygon composed of chains (0)
    2. What coordinate system is used to represent geographic features?
      Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest .001. Longitudes are given to the nearest .001. Latitude and longitude values are specified in Decimal Degrees. The horizontal datum used is Unknown.
      The ellipsoid used is Clarke 1866.
      The semi-major axis of the ellipsoid used is 6378206.4.
      The flattening of the ellipsoid used is 1/294.98.
  7. How does the data set describe geographic features?
    IBCFLT.AAT
    arcinfo attributes (Source: arcinfo software)

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
    • Rhea, Susan
  2. Who also contributed to the data set?
  3. To whom should users address questions about the data?
    Susan Rhea
    US Geological Survey
    Geophysicist
    MS966, Box 25046, Federal Center
    Denver, CO
    USA

    303-273-8639 (voice)
    303-273-8600 (FAX)
    rhea@usgs.gov
    Contact_Instructions: email is the best way to make contact

Why was the data set created?

The data was generated to help in understanding the seismotectonic hazards in the vicinity of the lower Wabash Valley. This data complements similar data collected in the vicinity of New Madrid, MO US Geological Survey Open-File Report 95-0574, available at http://pubs.usgs.gov/of/1995/0574/

How was the data set created?

  1. From what previous works were the data drawn?
    (source 1 of 2)
    Glenn Bear and Jim Drahovzal, 1995, written communication.

    (source 2 of 2)
    Frankie, W.T., Lumm, D.K., Boberg, W.S., Hamilton-Smith, Terence, and Noger, M.C., 1994, Map showing major structural features of the Illinois Basin, in Hmasenmueller, N.R., and Comer, J.B., eds., Gas potential of the New Albany Shale (Devonian and Mississippian) in the Illinois Basin: Indiana Geological Survey Illinois Basin Series 2 Series 2, Indiana Geological Survey, IN.

    Other_Citation_Details: 6 folded plates, 83 p
    Type_of_Source_Media: electronic transfer
    Source_Scale_Denominator: 1000000
  2. How were the data generated, processed, and modified?
    Date: 1995 (process 1 of 2)
    Original arc/info coverage in UTM projection received via email from Glenn Bear, Ph.D. student at Indiana University Department of Geological Sciences. Clipped to project boundary. Coverage overlapped larger scale Paducah quadrangle and Kentucky state geologic map, so erased coverage within boundaries of these two larger scale coverages. Person who carried out this activity:
    Rhea

    Data sources used in this process:
    • not applicable
    Date: 06-May-1998 (process 2 of 2)
    Creation of original metadata record Person who carried out this activity:
    Susan Rhea
    US Geological Survey
    Geophysicist
    MS966, Box 25046, Federal Center
    Denver, CO
    USA

    303-273-8639 (voice)
    303-273-8600 (FAX)
    rhea@usgs.gov
    Contact_Instructions: email is the best way to make contact
  3. What similar or related data should the user be aware of?
    Wheeler, R.L., Rhea, Susan, Diehl, S.F., Drahovzal, J.A., Bear, G.W., and Sargent, M.L., 1997, Seismotectonic map showing faults, igneous rocks, and geophysical and neotectonic features in the vicinity of the lower Wabash Valley, Illinois, Indiana, and Kentucky: U.S. Geological Survey Miscellaneous Investigations Series Map I-2583-D, U.S. Geological Survey, Denver, CO.

    Other_Citation_Details: pamphlet accompanies map

How reliable are the data; what problems remain in the data set?

  1. How well have the observations been checked?
    No attributes are provided beyond those supplied by ARC/INFO.
  2. How accurate are the geographic locations?
    Scale of data used to create IBC map unknown, scale of IBC map 1:1,000,000.
  3. How accurate are the heights or depths?
  4. Where are the gaps in the data? What is missing?
    This dataset is lowest in accuracy and completeness relative to related fault data in padflt (Paducah Quad) and kyflt (Geologic Map of Kentucky). Used on published map to represent fault pattern in the region outside of Paducah and KY coverages.
  5. How consistent are the relationships among the observations, including topology?
    Chain-node topology present.

How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?
Access_Constraints: none
Use_Constraints: none
  1. Who distributes the data set? (Distributor 1 of 1)
    Susan Rhea
    US Geological Survey
    Geophysicist
    USGS Mail Stop 966
    Box 25046, Federal Center
    Denver, CO
    USA

    303-273-8639 (voice)
    303-273-8600 (FAX)
    rhea@usgs.gov
    Contact_Instructions: Email is the best way to make contact.
  2. What's the catalog number I need to order this data set? USGS Open-File Report 97-0681
  3. What legal disclaimers am I supposed to read?
    This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards and stratigraphic nomenclature. Any use of trade names is for descriptive purposes only and does not imply endorsement by the USGS.
  4. How can I download or order the data?
  5. What hardware or software do I need in order to use the data set?
    ARC/INFO version 7.0.3 or later or ArcView 3.0 or later

Who wrote the metadata?

Dates:
Last modified: 10-Jun-2016
Metadata author:
Peter N Schweitzer
USGS Midwest Area
Collection manager, USGS Geoscience Data Clearinghouse, http://geo-nsdi.er.usgs.gov/
Mail Stop 954
12201 Sunrise Valley Dr
Reston, VA
USA

703-648-6533 (voice)
703-648-6252 (FAX)
pschweitzer@usgs.gov
Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)
This page is <https://geo-nsdi.er.usgs.gov/metadata/open-file/97-681/ibcflt.faq.html>
Generated by mp version 2.9.48 on Tue Jul 03 20:06:56 2018