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

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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, U.S. Geological Survey, Reston, VA USA.

    Online Links:

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -91.128202
    East_Bounding_Coordinate: -90.996855
    North_Bounding_Coordinate: 37.127090
    South_Bounding_Coordinate: 36.998015

  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):

      • G-polygon (47)

    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?

    vbn_bedrock

    FID
    Internal feature number. (Source: ESRI)

    Sequential unique whole numbers that are automatically generated.

    Shape
    Feature geometry. (Source: ESRI)

    Coordinates defining the features.

    AREA

    PERIMETER

    VBN_BED83N

    VBN_BED8_1

    MAP_UNIT
    Abbreviation for map unit name

    SURF_BED
    Surficial or Bedrock unit

    SURFTYPE
    Type of surficial unit

    LITHPRI
    Primary lithology

    LITHSEC
    Secondary lithology

    LITHTER
    Tertiary lithology

    FORM
    Formation name

    MEMBER
    Member name

    GROUP
    Group name

    SUPERGROUP
    Supergroup name

    ROCKCLASS
    General rock classification

    AGE
    Geologic age

    GEOCHR
    Geochron

    GEOCHRTECH
    Technique used for absolute dating

    GEOCHRREF
    Reference(s) for absolute dating

    FOSSIL
    Are fossils present?

    FOSSILTYPE
    Fossil types

    FOSSILREF
    Fossil reference(s)

    CORRELEXTR
    Correlation of unit is extrapolated or interpolated

    ORIGIN
    Author interpretation of environment of origin of unit

    RES
    Potential mineral resource

    RESREF
    Mineral resource reference

    COLOR
    General color of unit

    MINPRI
    Primary mineral in unit

    MINSEC
    Secondary mineral in unit

    MINOTH
    Other minerals found in unit

    CLASTPRI
    Primary clasts in unit

    CLASTSEC
    Secondary clasts in unit

    CEMENT
    Composition of cement or matrix

    THICKAPPRX
    Approximate thickness of unit

    THICKRANGE
    Range of thickness for unit

    BEDTHIN
    Are thin beds present?

    BEDMEDIUM
    Are medium beds present?

    BEDTHICK
    Are thick beds present?

    CONTUP
    Nature of upper contact

    CONTLOW
    Nature of lower contact

    FOLPRI
    Primary foliation

    FOLSEC
    Secondary foliation

    FOLTER
    Tertiary foliation

    CMPM
    Contact metamorphic minerals

    RMPM
    Regional metamorphic minerals

    RMRM
    Retrograde regional metamorphic minerals

    DEFORMAGE
    Interpreted age and/or orogeny of deformation

    DEFORMTECH
    Isotopic technique used to date deformation

    DEFORMREF
    Reference for Isotopic technique used to date deformation

    COMMENTS
    Miscellaneous comments

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
    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

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 U.S. Geological Survey topographic map
    Source_Scale_Denominator: 24000
    Source_Contribution: Base topography

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

    (process 1 of 1)
    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. A separate database file for map_unit polygon attributes was generated and populated in Microsoft Access 2000, exported as a .dbf file, converted in Arc/Info to an Info file, then joined to each polygon coverage using map_unit as the join item. Each coverage was then projected to either UTM (Zone 15, NAD83, GRS80) and exported to shapefiles.

  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?

    All polygon atributes were checked for correct values against original field data by the geologists.

  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:
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. None with proper citation. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

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

    David J. Weary
    U.S. Geological Survey
    Geologist

    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

  4. How can I download or order the data?

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

    email dweary@usgs.gov

  6. What hardware or software do I need in order to use the data set?

    The graphic file for the full map plate requires Adobe Acrobat Reader 5.0 or above. Use of the GIS data files requires a GIS software capable of viewing shapefiles produced by ESRI ArcMap V. 9.0.

Who wrote the metadata?

Dates:
Last modified: 04-Oct-2005
Metadata author:
U.S. Geological Survey
c/o David J. Weary
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

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 Tue Oct 04 14:44:16 2005