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Seismotectonic maps in the vicinity of the lower Wabash Valley, Illinois, Indiana, and Kentucky - Digital Spatial Database: Well locations

Frequently anticipated questions:

• What does this data set describe?
  1. How should this data set be cited?
  2. What geographic area does the data set cover?
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
  5. What is the general form of this data set?
  6. How does the data set represent geographic features?
  7. How does the data set describe geographic features?
• Who produced the data set?
  1. Who are the originators of the data set?
  2. Who also contributed to the data set?
  3. To whom should users address questions about the data?
• Why was the data set created?
• How was the data set created?
  1. From what previous works were the data drawn?
  2. How were the data generated, processed, and modified?
  3. What similar or related data should the user be aware of?
• How reliable are the data; what problems remain in the data set?
  1. How well have the observations been checked?
  2. How accurate are the geographic locations?
  3. How accurate are the heights or depths?
  4. Where are the gaps in the data? What is missing?
  5. How consistent are the relationships among the data, including topology?
• How can someone get a copy of the data set?
  1. Are there legal restrictions on access or use of the data?
  2. Who distributes the data?
  3. What's the catalog number I need to order this data set?
  4. What legal disclaimers am I supposed to read?
  5. How can I download or order the data?
• Who wrote the metadata?

What does this data set describe?

1. How should 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: Well locations: U.S. Geological Survey Open-File Report 97-0681, U.S. Geological Survey, Denver,CO.

   Online Links:

   • <http://pubs.usgs.gov/of/1997/ofr-97-0681/>

2. What geographic area does the data set cover?

   West_Bounding_Coordinate: -92.53320312

   East_Bounding_Coordinate: -87.13780212

   North_Bounding_Coordinate: 38.02190018

   South_Bounding_Coordinate: 33.79520035

3. What does it look like?

4. Does the data set describe conditions during a particular time period?

   Calendar_Date: 1980

   Currentness_Reference: content current to publication date of source

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 Point data set. It contains the following vector data types (SDTS terminology):

      • Point (112)
      • String (0)
      • 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. 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?

   WELL.PAT

   well locations, identifiers, and depth to geologic formations (Source: Dart)

   ID

   identifying code used on map and in tables (Source: Dart)

   ALT_ID

   alternative id, brief (Source: Dart)

   NAME

   name of well, includes owner (Source: Dart)

   CLASS

   symbol code for plotting (Source: Dart)

   LAT

   latitude

   LONG

   longitude

   TOPO_ELEV

   elevation above surface

   TP_ELEVTAG

   K_DEP

   Cretaceous depth

   K_TAG

   K_SUB_UNIT

   unit below Cretaceous

   K_THK

   Cretaceous thickness

   K_THK_TAG

   PZ_DEP

   Paleozoic depth

   PZ_TAG

   PZ_SUB_UNIT

   unit below Paleozoic

   PZ_THK

   Paleozoic thickness

   PZ_THK_TAG

   PN_DEP

   depth to Pennsylvanian

   PN_TAG

   PN_SUB_UNIT

   units below Pennsylvanian

   PN_THK

   Pennsylvanian thickness

   PN_THK_TAG

   MS_DEP

   depth to Mississippian

   MS_TAG

   MS_SUB_UNIT

   unit below Mississippian

   MS_THK

   Mississippian thickness

   MS_THK_TAG

   DV_DEP

   depth to Devonian

   DV_TAG

   DV_SUB_UNIT

   unit below Devonian

   DV_THK

   Devonian thickness

   DV_THK_TAG

   SL_DEP

   depth to Silurian

   SL_TAG

   SL_SUB_UNIT

   unit below Silurian

   SL_THK

   Silurian thickness

   SL_THK_TAG

   OR_DEP

   depth to Ordivician

   OR_TAG

   OR_SUB_UNIT

   unit below Ordivician

   OR_THK

   Ordivician thickness

   OR_THK_TAG

   KX_DEP

   depth to Knox

   KX_TAG

   KX_SUB_UNIT

   unit below Knox

   KX_THK

   Knox thickness

   KX_THK_TAG

   CM_DEP

   depth to Cambrian

   CM_TAG

   CM_SUB_UNIT

   unit below Cambrian

   CM_THK

   Cambrian thickness

   CM_THK_TAG

   EL_DEP

   depth to Elvins Group

   EL_TAG

   EL_SUB_UNIT

   unit below Elvins Group

   EL_THK

   Elvins Group thickness

   EL_THK_TAG

   BN_DEP

   depth to Bonneterre

   BN_TAG

   BN_SUB_UNIT

   unit below Bonneterre

   BN_THK

   Bonneterre thickness

   BN_THK_TAG

   LM_DEP

   depth to Lamont

   LM_TAG

   LM_SUB_UNIT

   unit below Lamont

   LM_THK

   Lamont thickness

   LM_THK_TAG

   PC_DEP

   depth to Precambrian

   PC_TAG

   TOTAL_DEP

   total depth

   TD_TAG

   TD_SUB_UNIT

   unit at bottom of well

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?

   Richard Dart

3. To whom should users address questions about the data?
   Susan Rhea
   US Geological Survey
   Geophysicist
   MS966, Box 25046, Federal Center
   Denver, CO 80225
   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 via ftp at <http://pubs.usgs.gov/of/1995/ofr-95-0574/>)

How was the data set created?

1. From what previous works were the data drawn?

   (source 1 of 1)

   Dart, Richard, 1985, Horizontal-stress directions in the Denver and Illinois basins from the orientations of borehole breakouts: U.S. Geological Survey Open-File Report OFR 85-733, U.S. Geological Survey, Denver, CO.

   Type_of_Source_Media: electronic

   Source_Scale_Denominator: 250000

   Source_Contribution: Dart contributed all arcinfo data

2. How were the data generated, processed, and modified?

   Date: 09-Jul-1997 (process 1 of 2)

   Digital coordinates and attributes were received via ftp and converted to an arcinfo coverage.
   

   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 80225
   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., Diehl, S.F., Rhea, Susan, Sargent, M.L., Bear, G.W., 1997, Map showing selected wells and geophysical survey and modeling lines in the vicinity of the lower Wabash Valley, Illinois, Indiana, Kentucky: U.S. Geological Survey Miscellaneous Investigations Series Map I-2583-C, 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?

   The attribute accuracy is described, where present, with each attribute defined in the Entity and Attribute Section.

2. How accurate are the geographic locations?

   locations taken from township and range definitions
   

3. How accurate are the heights or depths?

4. Where are the gaps in the data? What is missing?

   all wells reported in I-Map are included in this dataset

5. How consistent are the relationships among the observations, including topology?

   Point features 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 80225-0046
   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?
   • Availability in digital form:

     Data format:	Each coverage contains isoseismal data for one event (two for i187609) in format ARCE (version 7.0.3)
     Network links:	<http://pubs.usgs.gov/of/1997/ofr-97-0681//e00_files/well.e00>

   • Cost to order the data: none

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: 09-May-2013

Metadata author:

Peter N Schweitzer
USGS Midwest Area
Geologist
Mail Stop 954
12201 Sunrise Valley Dr
Reston, VA 20192-0002
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)