Metadata:
  Identification_Information:
    Citation:
      Citation_Information:
        Originator: Linda J. Bragg
        Publication_Date: 2000
        Title:
          Fire Clay Coal Zone Point Data (Chemistry) in 
          Kentucky, Virginia and West Virginia
        Larger_Work_Citation:
          Citation_Information:
            Originator: Northern and Central Appalachian Basin Coal Regions
              Assessment Team
            Publication_Date: 2000
            Title:
              2000 Resource Assessment of Selected Coal Beds and Zones in the
              Northern and Central Appalachian Basin Coal Regions
            Series_Information:
              Series_Name: U.S. Geological Survey Professional Paper
              Issue_Identification: PP1625-C
            Publication_Information:
              Publication_Place: Reston, VA
              Publisher: U.S. Geological Survey
    Description:
      Abstract:
        This dataset (located by latitude and longitude) is a subset of the
        geochemical dataset found in Chap. F, Appendix 7, PP1625-C, and used
        in this study of the Fire Clay coal zone. That dataset is a
        compilation of data from the U.S. Geological Survey's (USGS) National
        Coal Resources Data System (NCRDS) USCHEM (U.S. geoCHEMical), and the
        Kentucky Geological Survey (KGS) Kentucky Coal Resources Information
        System (KCRIS) databases. The metadata file for the complete dataset is
        found in Chap. F, Appendix 8, PP1625-C (please see it for more
        detailed information on this geochemical dataset). This subset of the
        geochemical data for the Fire Clay coal zone includes ash yield, sulfur
        content, SO2 value, gross calorific value, arsenic content and mercury
        content for these records, as well as the ranking of these values, which
        is described later under the attributes in this metadata file.
        Analytical techniques are described in the references in Chap. F,
        Appendix 9, PP1625-C. The analytical data are stored as text fields
        because many of the parameters contain letter qualifiers appearing after
        the numerical data values. The following is a list of the possible
        qualifier values: L - less than, G - greater than, N - not detected, or
        H - interference that cannot be easily resolved. Not all of these codes
        may be in this database.
      Purpose:
        The purpose of Professional Paper 1625-C is to release the
        interpretation of assessment and modeling data for the top-producing
        coal beds in the northern and central Appalachian Basin coal regions.
        The dataset has been generalized and is useful only in regional studies.
        Individuals who do not have an internet connection to access the
        detailed data coverages interactively through GeoDE or who cannot use
        the ARC/INFO export covers provided on Disc 2, PP1625-C, can use this 
        coverage to obtain limited information on the Fire Clay coal zone. The 
        presented data for the Fire Clay coal must be considered provisional, 
        because the correlation of the zone continues to be evaluated in West
        Virginia.
    Time_Period_of_Content:
      Time_Period_Information:
        Range_of_Dates/Times:
          Beginning_Date: 1970's
          Ending_Date: 1997
      Currentness_Reference: data collection and collation period
    Status:
      Progress: Complete
      Maintenance_and_Update_Frequency: None planned
    Spatial_Domain:
      Bounding_Coordinates:
        West_Bounding_Coordinate: -84.114
        East_Bounding_Coordinate: -81.533
        North_Bounding_Coordinate: 38.099
        South_Bounding_Coordinate: 36.599
    Keywords:
      Theme:
        Theme_Keyword_Thesaurus:
          Coal Resource Classification of the U.S. Geological Survey, USGS
          Circular 891.
        Theme_Keyword: coal
        Theme_Keyword: bituminous
        Theme_Keyword: coal geochemistry
        Theme_Keyword: coal quality
        Theme_Keyword: Kentucky Geological Survey (KGS)
        Theme_Keyword: U.S. Geological Survey (USGS)
        Theme_Keyword: Virginia Division of Mineral Resources (VDMR)
        Theme_Keyword: West Virginia Geological and Economic Survey (WVGES)
      Place:
        Place_Keyword_Thesaurus: Geographic Names Information System
        Place_Keyword: Appalachians
        Place_Keyword: Central Appalachian
        Place_Keyword: Kentucky (KY)
        Place_Keyword: Virginia (VA)
        Place_Keyword: West Virginia (WV)
        Place_Keyword: Bell County, KY
        Place_Keyword: Clay County, KY
        Place_Keyword: Floyd County, KY
        Place_Keyword: Johnson County, KY
        Place_Keyword: Knott County, KY
        Place_Keyword: Leslie County, KY
        Place_Keyword: Letcher County, KY
        Place_Keyword: Perry County, KY
        Place_Keyword: Pike County, KY
        Place_Keyword: Wise County, VA
        Place_Keyword: Boone County, WV
        Place_Keyword: Logan County, WV
      Stratum:
        Stratum_Keyword_Thesaurus:
          Geologic Names Unit Lexicon (GNULEX), 1996;
          Stratigraphic Nomenclature Databases for the United States, It's
          possessions, and Territories, U.S. Geological Survey Digital Data
          Series DDS-6, release 3.
        Stratum_Keyword: Pennsylvanian
        Stratum_Keyword: Middle Pennsylvanian
        Stratum_Keyword: Pikeville Formation
        Stratum_Keyword: Kanawha Formation
        Stratum_Keyword: Wise Formation
        Stratum_Keyword: Pottsville Group
        Stratum_Keyword: Breathitt Group
        Stratum_Keyword: Fire Clay Coal
        Stratum_Keyword: Lower Elkhorn Coal
        Stratum_Keyword: Eagle Coal
        Stratum_Keyword: Imboden Coal
        Stratum_Keyword: Little Creek Coal
        Stratum_Keyword: Blue Gem Coal
        Stratum_Keyword: Bruin Coal
        Stratum_Keyword: Campbell Creek Coal
        Stratum_Keyword: Freeburn Coal
        Stratum_Keyword: Howard Coal
        Stratum_Keyword: Little Eagle Coal
        Stratum_Keyword: No. 2 Gas
        Stratum_Keyword: Path Fork Coal
        Stratum_Keyword: Rich Mountain Coal
        Stratum_Keyword: Straight Creek Coal
        Stratum_Keyword: Upper Bolling Coal
        Stratum_Keyword: Vires Coal
        Stratum_Keyword: Wallins Creek Coal
        Stratum_Keyword: Wolf Creek Coal
    Access_Constraints: none
    Use_Constraints: none
    Point_of_Contact:
      Contact_Information:
        Contact_Person_Primary:
          Contact_Person: Linda J. Bragg
          Contact_Organization: U.S. Geological Survey, Eastern Energy
            Resources Team
        Contact_Address:
          Address_Type: mailing address
          Address: MS 956 National Center
          City: Reston
          State_or_Province: Virginia
          Postal_Code: 20192
          Country: USA
        Contact_Voice_Telephone: 703-648-6451
    Data_Set_Credit:
      The geochemical data stored in the NCRDS USCHEM database have been
      generated from coal samples submitted by State geological surveys and 
      USGS scientists since the inception of NCRDS in the middle 1970's.
      Samples were submitted (date of submittal stored as SUBDATE field in 
      USCHEM database) and analyzed for the Fire Clay coal zone through 
      the cooperation of coal geologists (primary contacts listed) at the West 
      Virginia Geological and Economic Survey (William Grady), the Virginia 
      Division of Mineral Resources (James Lovett), the Kentucky Geological
      Survey (Cortland Eble), and U.S. Geological Survey (staff) [WVGES, VDMR,
      KGS, and USGS, respectively].  Additional data were obtained from the
      KGS Kentucky Coal Resources Information System (KCRIS) database for this
      Study. [See references, Chap. F, Appendix 9, PP1625-C]. It is recommended
      that newer data be obtained from the State geological surveys that are the
      sources of the original information in this study.
  Data_Quality_Information:
    Attribute_Accuracy:
      Attribute_Accuracy_Report:
        Deductive_Estimate: The accuracy of the geochemical data for each 
          element can be found in descriptions of analysis techniques listed 
          in references [Chap. F, Appendix 9, PP1625-C]. These references 
          include: ASTM, 1996; Golightly, D.W., and Simon, F.O., 1989; and 
          Swanson, V.E., and Huffman, Jr., C., 1976.
    Logical_Consistency_Report: For differences in measured data values arising
      from differences in analytical methods, see the following references:
      ASTM, 1996; Golightly, D.W., and Simon, F.O., 1989; and Swanson, V.E., and
      Huffman, Jr., C., 1976; [Chap. F, Appendix 9, PP1625-C].
    Completeness_Report: All available correlated public data (at the time of
      compilation of this database) for the Fire Clay coal zone were compiled
      for this study. The state of Tennessee is excluded.
    Positional_Accuracy:
      Horizontal_Positional_Accuracy:
        Horizontal_Positional_Accuracy_Report: Several data sources were used 
          as input to this data set. Original data were stored in NCRDS in 
          latitude/longitude coordinates with a possible precision of decimal 
          seconds. The latitude/longitude coordinates from KCRIS were also
          stored in decimal degrees. 
      Vertical_Positional_Accuracy: 
        Vertical_Positional_Accuracy_Report: The raw input data represent 
          thickness measurements from a variety of data types: cores, 
          outcrop, road cuts, and others. The original errors associated
          with these measurements are unknown.  Errors may arise from the
          differences in the judgment of geologists in the differentiation 
          between coal, bone and partings. Bone coal and partings > 3/8 in thick
          were assumed to be excluded from the samples during sampling.
          Thickness data were used in averaging the analytical data from partial
          (bench or lithotype) coal samples to represent the whole coal bed.
          Errors may also arise from miscorrelations of the coal beds.
    Lineage:
      Process_Step:
        Process_Description: This dataset was compiled as a selected subset of
          the complete dataset found in Chap. F, Appendix 7, PP1625-C. This
          subset of data contains all the data having latitudes and longitudes
          (point data which are capable of being mapped). Ash yield, sulfur
          content, and SO2 content data are classified into categories of low
          (> 0 - <= 8 percent ash; > 0 - <= 1 percent sulfur; > 0 - <= 1.2
          lbs SO2 per million Btu), medium (> 8 - <= 15 percent ash; > 1 - < 3
          percent sulfur; > 1.2 - <= 2.5 lbs SO2 per million Btu ), and 
          high (> 15 percent ash; >= 3 percent sulfur; > 2.5 lbs SO2 per million
          Btu). Ash yield and sulfur content are classified according to Wood
          and others (1983) [Chap. B, Appendix 1, PP1625-C]. SO2 content is
          classified according to past and present Clean Air Act Amendments
          [U.S. Statutes at Large, 1990; (See references, Chap. F, Appendix 9,
          PP1625-C)]. Calorific value, arsenic, and mercury are classified into 
          5 data categories, or quintiles, each representing 20 percent of the 
          data values. Rankings of low, med low, medium, med high, and high 
          are assigned to the quintile rankings based on the lowest to highest 
          values in each 20 percent of the data.
        Process_Date: 2000
      Process_Step:
        Process_Description: Geochemical data for this study processed and
         attributes were then stored in a .dbf file.
        Process_Date: 2000
      Process_Step:
        Process_Description: In ArcView, converted .dbf file into shape file
          in geographic coordinates.
        Process_Date: 2000
  Spatial_Data_Organization_Information:
    Direct_Spatial_Reference_Method: Point
    Point_and_Vector_Object_Information
      SDTS_Terms_Description
        SDTS_Point_and_Vector_Object_Type: Point
        Point_and_Vector_Object_Count: 55
  Spatial_Reference_Information:
    Horizontal_Coordinate_System_Definition:
      Geographic:
        Latitude_Resolution: 0.00001
        Longitude_Resolution: 0.00001
        Geographic_Coordinate_Units: decimal degrees
  Entity_and_Attribute_Information:
    Detailed_Description:
      Entity_Type:
        Entity_Type_Label: fcchemp.dbf
        Entity_Type_Definition: point attribute table for shape file
          fcchemp.shp 
        Entity_Type_Definition_Source: ARCVIEW
      Attribute:
        Attribute_Label: CHEMID
        Attribute_Definition: North and Central Appalachian Basin
            identification number. For USGS samples, NCAID contains a list of
            the LABID and SAMPLENO for all samples combined. For all samples
            that are averaged, the NCAID contains AVG and the samples that were
            averaged together. Character data of 40 characters or less.
        Attribute_Definition_Source: this study
        Attribute_Domain_Values:
          Unrepresentable_Domain: Character field
      Attribute:
        Attribute_Label: State
        Attribute_Definition: Name of State where sample was collected.
          Character data of 2 characters or less.
        Attribute_Definition_Source: this study
        Attribute_Domain_Values:
          Enumerated_Domain:
            Enumerated_Domain_Value: KY
            Enumerated_Domain_Value_Definition: 
              'KY' Kentucky
          Enumerated_Domain:              
            Enumerated_Domain_Value: VA
            Enumerated_Domain_Value_Definition: 
              'VA' Virginia
          Enumerated_Domain:
            Enumerated_Domain_Value: WV
            Enumerated_Domain_Value_Definition: 
              'WV' West Virginia
            Enumerated_Domain_Value_Definition_Source: USGS
      Attribute:
        Attribute_Label: County
        Attribute_Definition:  Name of county in state where sample was
            Collected. Character data of 16 characters or less.
        Attribute_Definition_Source: this study
        Attribute_Domain_Values:
          Enumerated_Domain:
            Enumerated_Domain_Value: Bell 
            Enumerated_Domain_Value_Definition: 
              'Bell' Bell County, KY 
          Enumerated_Domain:
            Enumerated_Domain_Value: Clay 
            Enumerated_Domain_Value_Definition: 
              'Clay' Clay County, KY 
          Enumerated_Domain:
            Enumerated_Domain_Value: Floyd 
            Enumerated_Domain_Value_Definition: 
              'Floyd' Floyd County, KY 
          Enumerated_Domain:
            Enumerated_Domain_Value: Johnson 
            Enumerated_Domain_Value_Definition: 
              'Johnson' Johnson County, KY 
          Enumerated_Domain:
            Enumerated_Domain_Value: Knott 
            Enumerated_Domain_Value_Definition: 
              'Knott' Knott County, KY 
          Enumerated_Domain:
            Enumerated_Domain_Value: Leslie 
            Enumerated_Domain_Value_Definition: 
              'Leslie' Leslie County, KY 
          Enumerated_Domain:
            Enumerated_Domain_Value: Letcher 
            Enumerated_Domain_Value_Definition: 
              'Letcher' Letcher County, KY 
          Enumerated_Domain:
            Enumerated_Domain_Value: Perry 
            Enumerated_Domain_Value_Definition: 
              'Perry' Perry County, KY 
          Enumerated_Domain:
            Enumerated_Domain_Value: Pike 
            Enumerated_Domain_Value_Definition: 
              'Pike' Pike County, KY 
          Enumerated_Domain:
            Enumerated_Domain_Value: Wise
            Enumerated_Domain_Value_Definition: 
              'Wise' Wise County, VA 
          Enumerated_Domain:
            Enumerated_Domain_Value: Boone
            Enumerated_Domain_Value_Definition: 
              'Boone' Boone County, WV
          Enumerated_Domain:
            Enumerated_Domain_Value: Logan 
            Enumerated_Domain_Value_Definition: 
              'Logan' Logan County, WV
            Enumerated_Domain_Value_Definition_Source: USGS
      Attribute:
        Attribute_Label: Long_Deg
        Attribute_Definition: Longitude coordinate for point source location
            of coal sample (decimal degrees). [nd = no data entered]
        Attribute_Definition_Source: this study
        Attribute_Domain_Values:
          Range_Domain:
            Range_Domain_Minimum: -83.762507
            Range_Domain_Maximum: -81.556391
      Attribute:
        Attribute_Label: Lat_Deg
        Attribute_Definition: Latitude coordinate for point source location
            of coal sample (decimal degrees). [nd = no data entered]
        Attribute_Definition_Source: this study
        Attribute_Domain_Values:
          Range_Domain:
            Range_Domain_Minimum: 36.755556
            Range_Domain_Maximum: 38.039724
      Attribute:
        Attribute_Label: Sampthk
        Attribute_Definition: Thickness of the sample, measured in decimal
            feet. [0 = no thickness value]
        Attribute_Definition_Source: this study
        Attribute_Domain_Values:
          Range_Domain:
            Range_Domain_Minimum: 1.58
            Range_Domain_Maximum: 5.71
      Attribute:
        Attribute_Label: ASH
        Attribute_Definition: Ash yield in percent as determined by ASTM 
            method D-3174 (ash obtained at 750 degrees C) [see ASTM, 1996; 
            Golightly, D.W., and Simon, F.O., 1989; and Swanson, V.E., and 
            Huffman, Jr., C., 1976; (Chap. F, Appendix 9, PP1625-C)]. Character
            data of 10 characters or less. Qualifier letter appears after
            numerical value. [nd = no data entered]
        Attribute_Definition_Source: this study
        Attribute_Domain_Values:
          Range_Domain:
            Range_Domain_Minimum: 3.34
            Range_Domain_Maximum: 24.8
            Attribute_units_of_measure: percent
      Attribute:
        Attribute_Label: ASH_RKNG
        Attribute_Definition: Ranking of ash yield values, which are classified
            into categories [Wood and others, 1983; (Chap. B, Appendix 1, 
            PP1625-C)] of low (> 0 - <= 8 percent ash), medium (> 8 - <= 15 
            percent ash), and high (> 15 percent ash). Character data of 10 
            characters or less. [nd = no data entered]
        Attribute_Definition_Source: this study
        Attribute_Domain_Values:
          Enumerated_Domain:
            Enumerated_Domain_Value: low
            Enumerated_Domain_Value_Definition:
              'low' (>0 - <= 8 percent ash yield)
          Enumerated_Domain:
            Enumerated_Domain_Value: medium
            Enumerated_Domain_Value_Definition:
              'medium' (> 8 - <= 15 percent ash yield)
            Enumerated_Domain_Value_Definition_Source: USGS
      Attribute:
        Attribute_Label: S
        Attribute_Definition: Sulfur (S) content in percent as determined by 
            ASTM method D-3177 in USGS or other labs [see ASTM, 1996; Golightly,
            D.W., and Simon, F.O., 1989; and Swanson, V.E., and Huffman, Jr.,
            C., 1976; (Chap. F, Appendix 9, PP1625-C]. Character data of 10
            characters or less. Qualifier letter appears after numerical value.
            [nd = no data entered]
        Attribute_Definition_Source: this study
        Attribute_Domain_Values:
          Range_Domain:
            Range_Domain_Minimum: 0.50
            Range_Domain_Maximum: 2.65
            Attribute_units_of_measure: percent
      Attribute:
        Attribute_Label: S_RKNG
        Attribute_Definition: : Ranking of sulfur content values, which are
            classified into categories [Wood and others, 1983; (Chap. B,
            Appendix 1, PP1625-C)] of low (> 0 - <= 1 percent sulfur), 
            medium (> 1 - < 3 percent sulfur), and high (>= 3 percent
            sulfur). Character data of 10 characters or less. [nd = no data
            entered]
        Attribute_Definition_Source: this study
        Attribute_Domain_Values:
          Enumerated_Domain:
            Enumerated_Domain_Value: low
            Enumerated_Domain_Value_Definition:
              'low' (>0 - <= 1 percent sulfur content)
          Enumerated_Domain:
            Enumerated_Domain_Value: medium
            Enumerated_Domain_Value_Definition:
              'medium' (> 1 - < 3 percent sulfur content)
            Enumerated_Domain_Value_Definition_Source: USGS
      Attribute:
        Attribute_Label: SO2 
        Attribute_Definition: Sulfur dioxide (SO2) values calculated as lbs of
            sulfur dioxide per million Btu. Character data of 10 characters or
            less. Qualifier letter appears after numerical value. [nd = no data
            entered]
        Attribute_Definition_Source: this study
        Attribute_Domain_Values:
          Range_Domain:
            Range_Domain_Minimum: 0.81
            Range_Domain_Maximum: 4.79
            Attribute_units_of_measure: pounds per million British thermal unit
      Attribute:
        Attribute_Label: SO2_RKNG
        Attribute_Definition: Ranking of sulfur dioxide (SO2) values, which are
            classified into categories [see U.S. Statutes at large, 1990; (Chap.
            F, Appendix 9, PP1625-C)] of low (> 0 - <= 1.2 lbs SO2 per million 
            Btu), medium (> 1.2 - <= 2.5 lbs SO2 per million Btu), and high 
            (> 2.5 lbs SO2 per million Btu). Character data of 10 characters or 
            less. [nd = no data entered]
        Attribute_Definition_Source: this study
        Attribute_Domain_Values:
          Enumerated_Domain:
            Enumerated_Domain_Value: low
            Enumerated_Domain_Value_Definition:
              'low' (> 0 - <= 1.2 lbs SO2 per million Btu) 
          Enumerated_Domain:
            Enumerated_Domain_Value: medium
            Enumerated_Domain_Value_Definition:
              'medium' (> 1.2 - <= 2.5 lbs SO2 per million Btu)
            Enumerated_Domain_Value_Definition_Source: USGS
      Attribute:
        Attribute_Label: CV
        Attribute_Definition: Gross calorific value (CV) of the coal sample
            expressed in British Thermal Units (BTU/lb) as determined by ASTM
            method D-2015 [see ASTM, 1996; Golightly, D.W., and Simon, F.O.,
            1989; and Swanson, V.E., and Huffman, Jr., C., 1976; (Chap. F, 
            Appendix 9, PP1625-C)]. Character data of 10 characters or less.
            Qualifier letter appears after numerical value. [nd = no data
            entered]
        Attribute_Definition_Source: this study
        Attribute_Domain_Values:
          Range_Domain:
            Range_Domain_Minimum: 10,770
            Range_Domain_Maximum: 14,210
            Attribute_units_of_measure: British thermal units per pound
      Attribute:
        Attribute_Label: CV_RKNG
        Attribute_Definition: Ranking of gross calorific values, which are
            classified into 5 data categories, or quintiles, each
            representing 20 percent of the data values. Character
            data of 10 characters or less. [nd = no data entered]
        Attribute_Definition_Source: this study
        Attribute_Domain_Values:
          Enumerated_Domain:
            Enumerated_Domain_Value: low
            Enumerated_Domain_Value_Definition:
              'low' (> 0 - <= 12,300 Btu/lb) 
          Enumerated_Domain:
            Enumerated_Domain_Value: med low
            Enumerated_Domain_Value_Definition:
              'med low' (> 12,300 - <= 12,850 Btu/lb) 
          Enumerated_Domain:
            Enumerated_Domain_Value: medium
            Enumerated_Domain_Value_Definition:
              'medium' (> 12,850 - <= 13,240 Btu/lb)
          Enumerated_Domain:
            Enumerated_Domain_Value: med high
            Enumerated_Domain_Value_Definition:
              'med high' (> 13,240 - <= 13,580 Btu/lb) 
          Enumerated_Domain:
            Enumerated_Domain_Value: high
            Enumerated_Domain_Value_Definition:
              'high' (> 13,580 Btu/lb)
            Enumerated_Domain_Value_Definition_Source: USGS
      Attribute:
        Attribute_Label: AS
        Attribute_Definition: Arsenic (AS) value in parts per million as
            determined on whole-coal by USGS laboratories using either wet
            chemistry analysis for samples analyzed in Denver (D for LABID)
            before 1976 or Instrumental Neutron Activation Analysis (INAA) for
            samples analyzed in Reston (W for LABID) and for samples analyzed
            after 1976 in Denver [Swanson, V.E., and Huffman, Jr., C., 1976; 
            Golightly, D.W., and Simon, F.O., 1989; (Chap. F, Appendix 9, 
            PP1625-C)]. Qualifier letter appears after numerical value. [nd = 
            no data entered]
        Attribute_Definition_Source: this study
        Attribute_Domain_Values:
          Range_Domain:
            Range_Domain_Minimum: 0.07
            Range_Domain_Maximum: 53
            Attribute_units_of_measure: parts per million
      Attribute:
        Attribute_Label: AS_RKNG
        Attribute_Definition: Ranking of arsenic content values, which are
            classified into 5 data categories, or quintiles, each representing
            20 percent of the data values. Character data of 10 characters or
            less. [nd = no data entered]
        Attribute_Definition_Source: this study
        Attribute_Domain_Values:
          Enumerated_Domain:
            Enumerated_Domain_Value: low
            Enumerated_Domain_Value_Definition:
              'low' (> 0 - <= 2.1 ppm) 
          Enumerated_Domain:
            Enumerated_Domain_Value: med low
            Enumerated_Domain_Value_Definition:
              'med low' (> 2.1 - <= 4.0 ppm) 
          Enumerated_Domain:
            Enumerated_Domain_Value: medium
            Enumerated_Domain_Value_Definition:
              'medium' (> 4.0 - <= 6.4 ppm)
          Enumerated_Domain:
            Enumerated_Domain_Value: med high
            Enumerated_Domain_Value_Definition:
              'med high' (> 6.4 - <= 17 ppm) 
          Enumerated_Domain:
            Enumerated_Domain_Value: high
            Enumerated_Domain_Value_Definition:
              'high' (> 17 ppm)
            Enumerated_Domain_Value_Definition_Source: USGS
      Attribute:
        Attribute_Label: HG
        Attribute_Definition: Mercury (HG) value in parts per million as
            determined on whole-coal by USGS laboratories using wet chemistry
            analysis (cold-vapor atomic absorption) [Swanson, V.E., and 
            Huffman, Jr., C., 1976; Golightly, D.W., and Simon, F.O., 1989;
            (Chap. F, Appendix 9, PP1625-C)]. Character data of 10 characters or
            less. Qualifier letter appears after numerical value. [nd = no data
            entered]
        Attribute_Definition_Source: this study
        Attribute_Domain_Values:
          Range_Domain:
            Range_Domain_Minimum: 0.01L
            Range_Domain_Maximum: 0.3
            Attribute_units_of_measure: parts per million
      Attribute:
        Attribute_Label: HG_RKNG
        Attribute_Definition: Ranking of mercury content values, which are
            classified into 5 data categories, or quintiles, each representing
            20 percent of the data values. Character data of 10 characters or
            less. [nd = no data entered].
        Attribute_Definition_Source: this study
        Attribute_Domain_Values:
          Enumerated_Domain:
            Enumerated_Domain_Value: low
            Enumerated_Domain_Value_Definition:
              'low' (> 0 - <= 0.04 ppm) 
          Enumerated_Domain:
            Enumerated_Domain_Value: med low
            Enumerated_Domain_Value_Definition:
              'med low' (> 0.04 - <= 0.07 ppm) 
          Enumerated_Domain:
            Enumerated_Domain_Value: medium
            Enumerated_Domain_Value_Definition:
              'medium' (> 0.07 - <= 0.12 ppm) 
          Enumerated_Domain:
            Enumerated_Domain_Value: med high
            Enumerated_Domain_Value_Definition:
              'med high' (> 0.12 - <= 0.23 ppm) 
          Enumerated_Domain:
            Enumerated_Domain_Value: high
            Enumerated_Domain_Value_Definition:
              'high' (> 0.23 ppm)
            Enumerated_Domain_Value_Definition_Source: USGS
  Distribution_Information:
    Distributor:
      Contact_Information:
        Contact_Person_Primary:
          Contact_Person: Linda J. Bragg
          Contact_Organization: U.S. Geological Survey, Eastern Energy Resources
            Team
        Contact_Address:
          Address_Type: mailing address
          Address: MS 956 National Center
          City: Reston
          State_or_Province: Virginia
          Postal_Code: 20192
          Country: USA
        Contact_Voice_Telephone: 703-648-6451
    Resource_Description: U.S. Geological Survey Professional Paper PP1625-C;
      fcchemp.dbf 
    Distribution_Liability:
      Any use of trade, product, or firm names is for descriptive purposes
      only and does not imply endorsement by the U.S. Government. Although these
      data have been used by the U.S. Geological Survey (USGS), no warranty,
      expressed or implied, is made by the USGS as to the accuracy of the data
      and related materials. The act of distribution shall not constitute any
      such warrantity, and no responsibility is assumed by the USGS in the use
      of these data, software, or related materials.
    Standard_Order_Process:
      Digital_Form:
        Digital_Transfer_Information:
          Format_Name: ASCII comma delimited
          Format_Information_Content: point database with selected coal
            geochemistry values for the Fire Clay coal zone
        Digital_Transfer_Option:
          Online_Option:
            Computer_Contact_Information:
              Network_Address:
                Network_Resource_Name: http://greenwood.cr.usgs.gov/pub/ppapers/p1625c/
      Fees: none
  Metadata_Reference_Information:
    Metadata_Date: 20000331
    Metadata_Contact:
      Contact_Information:
        Contact_Person_Primary:
          Contact_Person: Linda J. Bragg
          Contact_Organization: U.S. Geological Survey, Eastern Energy Resources Team
        Contact_Address:
          Address_Type: mailing address
          Address: MS 956 National Center
          City: Reston
          State_or_Province: Virginia
          Postal_Code: 20192
          Country: USA
        Contact_Voice_Telephone: 703-648-6451
    Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
    Metadata_Standard_Version: FGDC-STD-001-1998