Geologic map of the Van Buren North quadrangle, Carter, Reynolds, and Shannon County, Missouri

Metadata also available as

Frequently-anticipated questions:


What does this data set describe?

Title:
Geologic map of the Van Buren North quadrangle, Carter, Reynolds, and Shannon County, Missouri
Abstract:
The geology of the Van Buren North quadrangle Carter, Shannon, and Reynolds County, Missouri was mapped from 1997 through 1998 as part of the Midcontinent Karst Systems and Geologic Mapping Project, Eastern Earth Surface Processes Team. The map supports the production of a geological framework that will be used in hydrogeologic investigations related to potential lead and zinc mining in the Mark Twain National Forest adjacent to the Ozark National Scenic Riverways (National Park Service). Digital geologic coverages will be used by other federal and state agencies in hydrogeologic analyses of the Ozark karst system and in ecological models
  1. How should this data set be cited?

    David J. Weary and Robert E. Weems, 2004, Geologic map of the Van Buren North quadrangle, Carter, Reynolds, and Shannon County, Missouri: Geologic Investigations Series 2802, U.S. Geological Survey, Reston, VA, USA.

    Online Links:

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -91.128146
    East_Bounding_Coordinate: -90.997611
    North_Bounding_Coordinate: 37.127054
    South_Bounding_Coordinate: 36.998060

  3. What does it look like?

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

    Calendar_Date: 2004
    Currentness_Reference: publication date

  5. What is the general form of this data set?

    Geospatial_Data_Presentation_Form: vector digital data

  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):

      • String (339)

    2. What coordinate system is used to represent geographic features?

      Grid_Coordinate_System_Name: Universal Transverse Mercator
      Universal_Transverse_Mercator:
      UTM_Zone_Number: 15
      Transverse_Mercator:
      Scale_Factor_at_Central_Meridian: 0.999600
      Longitude_of_Central_Meridian: -93.000000
      Latitude_of_Projection_Origin: 0.000000
      False_Easting: 500000.000000
      False_Northing: 0.000000

      Planar coordinates are encoded using coordinate pair
      Abscissae (x-coordinates) are specified to the nearest 0.000032
      Ordinates (y-coordinates) are specified to the nearest 0.000032
      Planar coordinates are specified in meters

      The horizontal datum used is North American Datum of 1983.
      The ellipsoid used is Geodetic Reference System 80.
      The semi-major axis of the ellipsoid used is 6378137.000000.
      The flattening of the ellipsoid used is 1/298.257222.

      Vertical_Coordinate_System_Definition:
      Altitude_System_Definition:
      Altitude_Datum_Name: NGVD 1929
      Altitude_Distance_Units: feet

  7. How does the data set describe geographic features?

    mags

    FID
    Internal feature number. (Source: ESRI)

    Sequential unique whole numbers that are automatically generated.

    Shape
    Feature geometry. (Source: ESRI)

    Coordinates defining the features.

    LENGTH

    VBN_MAGS83

    CONTOUR
    value of magnetic field contour in gammas


Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)

  2. Who also contributed to the data set?

  3. To whom should users address questions about the data?

    David J. Weary
    U.S. Geological Survey
    Research Geologist

    703-648-6897 (voice)
    dweary@usgs.gov

    Hours_of_Service: 8:00 AM - 3:00 PM ET
    Contact_Instructions: email preferred.


Why was the data set created?

The purpose of this geological map and database is to support and be part of a three-dimensional geologic framework study of south-central Missouri. The framework will be used to assess environmental impacts of lead and zinc mining in the Mark Twain National Forest on the hydrologic system of the Ozark National Scenic Riverways.


How was the data set created?

  1. From what previous works were the data drawn?

    (source 1 of 1)
    Type_of_Source_Media: Stable-base USGS topographic map
    Source_Scale_Denominator: 24000
    Source_Contribution: topographic base map.

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

    (process 1 of 2)
    A digital geographic base layer was created by georegistering then rectifying a .tiff image of the USGS 7.5 minute quadrangle. RMS error was required to be less than 3 meters (10 ft) in ground units. Geologic data was added as layers in ArcView 3.2 from field maps and notes by the authors. The shape files were converted to coverages and edited to eliminate dangles, gaps, and other errors, then were built to the appropriate topology. Items were created for features in each coverage and attributed as appropriate. Test plots were generated and provided to the author for comparison to the original data and corrections made to all errors identified. Each coverage was then projected to UTM (Zone 15, NAD83, GRS80) and exported to shapefiles.

    (process 2 of 2)
    Metadata imported.

    Data sources used in this process:

    • C:\DOCUME~1\DAVEWE~1\LOCALS~1\Temp\xmlAEF.tmp

  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?

    These data were created by delineating the boundaries from inked lines on a stable-base USGS 7.5 minute topographic map at 1:24,000 scale. Therefore, the mapped horizontal accuracy is assumed to be within National Map Accuracy Standards, with a horizontal accuracy of 45.6 feet at the 95% confidence level.

  3. How accurate are the heights or depths?

    These data were created by delineating the boundaries from inked lines on a stable-base USGS 7.5 minute topographic map at 1:24,000 scale. Therefore, the mapped vertical accuracy is assumed to be within National Map Accuracy Standards, with a horizontal accuracy of 11.9 feet at the 95% confidence level.

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

    These data are complete at a resolution of 1:24,000

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

    These data are believed to be logically consistent, though no rigorous formal test were performed. Polygon coverages were queried to screen for empty or inconsistent values. Line geometry is topologically clean.


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 with proper citation

  1. Who distributes the data set? (Distributor 1 of 1)

    David J. Weary
    U.S. Geological Survey
    Research Geologist
    MS926A National Center
    Reston, VA 20192
    USA

    703-648-6897 (voice)
    dweary@usgs.gov

    Hours_of_Service: 8:00 AM - 3:00 PM ET
    Contact_Instructions: email preferred
  2. What's the catalog number I need to order this data set?

    Downloadable Data

  3. What legal disclaimers am I supposed to read?

    Although all data and software released on this CD-ROM have been used by the USGS, no warranty,

    expressed or implied, is made by the USGS as to the accuracy of the data and related materials and (or) the functioning of the software.

  4. How can I download or order the data?

  5. Is there some other way to get the data?

    Cooperators or researchers with a need for the data may request a CD-ROM if downloading from the

    internet is not feasable. Contact David Weary, 703-648-6897 or dweary@usgs.gov with request.


Who wrote the metadata?

Dates:
Last modified: 06-Oct-2005
Metadata author:
U.S. Geological Survey
c/o David J. Weary
Research Geologist
REQUIRED: The city of the address., REQUIRED: The state or province of the address. REQUIRED: The ZIP or other postal code of the address.

703-648-6897 (voice)
dweary@usgs.gov

Hours_of_Service: 8:00 AM - 3:00 PM ET
Contact_Instructions: email preferred.
Metadata standard:
FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)
Metadata extensions used:


Generated by mp version 2.8.6 on Thu Oct 06 07:44:16 2005