Identification_Information:
  Citation:
    Citation_Information:
      Originator: Lambert, Rebecca B.
      Originator: Kolbe, Christine M.
      Originator: Belzer, Wayne
      Title: Quality of water and sediment in streams affected by historical mining, and quality of mine tailings, in the Rio Grande/Río Bravo basin, Big Bend area of the United States and Mexico, August 2002
      Publication_Date: 2008
      Series_Information:
        Series_Name: Scientific Investigations Report
        Issue_Identification: 2008-5032
      Publication_Information:
        Publication_Place: Denver, Colorado
        Publisher: Geological Survey (U.S.)
      Online_Linkage: http://pubs.usgs.gov/sir/2008/5032/
  Description:
    Abstract: Geochemical data for stream water, sediments, and mine tailings in this area
    Purpose:
      This report (1) provides information on abandoned mines and mine
      processing areas in the Big Bend area of the United States including
      the ores and minerals mined throughout the study area at the major
      mining districts and individual mines; (2) statistically compares
      the results of trace elements and other constituent concentrations
      in stream-water, streambed-sediment, and mine-tailing samples with
      criteria and screening levels established by TCEQ for segment 2306
      of the RG/RB in the Big Bend area of the United States and Mexico;
      and (3) uses summary tables, truncated boxplots, scatterplots, and
      bar graphs to show constituent concentrations and summarize data
      distributions for samples collected in the Big Bend area of the
      United States and Mexico.
  Time_Period_of_Content:
    Time_Period_Information:
      Single_Date/Time:
        Calendar_Date: 200208
    Currentness_Reference: Ground condition.  Samples collected during this month.
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: As needed
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: -103.783278
      East_Bounding_Coordinate: -102.817778
      North_Bounding_Coordinate: 29.451667
      South_Bounding_Coordinate: 29.006361
  Access_Constraints: none
  Use_Constraints: none
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: Alexandria Digital Library Feature Type Thesaurus
      Theme_Keyword: mine sites
    Place:
      Place_Keyword_Thesaurus: Augmented FIPS 10-4 and FIPS 6-4
      Place_Keyword: p1459 = Big Bend National Park
      Place_Keyword: f48043 = Brewster
      Place_Keyword: fMX06 = Chihuahua
      Place_Keyword: fMX07 = Coahuila de Zaragoza
    Theme:
      Theme_Keyword_Thesaurus: General glossary for mineral resources spatial data
      Theme_Keyword: DBF
      Theme_Keyword: shapefile
    Theme:
      Theme_Keyword_Thesaurus: USGS Thesaurus
      Theme_Keyword: abandoned mines and quarries
      Theme_Keyword: antimony
      Theme_Keyword: arsenic
      Theme_Keyword: cadmium
      Theme_Keyword: chemical analysis
      Theme_Keyword: fluorine
      Theme_Keyword: geochemistry
      Theme_Keyword: geospatial datasets
      Theme_Keyword: germanium
      Theme_Keyword: iron
      Theme_Keyword: lead
      Theme_Keyword: mercury
      Theme_Keyword: mine drainage
      Theme_Keyword: silver
      Theme_Keyword: surface water quality
      Theme_Keyword: water sampling
      Theme_Keyword: zinc
  Point_of_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: Texas Water Science Center
      Contact_Position: Director
      Contact_Address:
        Address_Type: mailing and physical address
        Address: 8027 Exchange Drive
        City: Austin
        State_or_Province: Texas
        Postal_Code: 78754-4733
        Country: USA
      Contact_Electronic_Mail_Address: dc_tx@usgs.gov
Spatial_Data_Organization_Information:
  Direct_Spatial_Reference_Method: Point
  Point_and_Vector_Object_Information:
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: Entity point
      Point_and_Vector_Object_Count: 26
Spatial_Reference_Information:
  Horizontal_Coordinate_System_Definition:
    Geographic:
      Geographic_Coordinate_Units: decimal degrees
    Geodetic_Model:
      Horizontal_Datum_Name: North American Datum of 1983
      Ellipsoid_Name: Geodetic Reference System 80
      Semi-major_Axis: 6378137
      Denominator_of_Flattening_Ratio: 298.257
Entity_and_Attribute_Information:
  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: table2.dbf
      Entity_Type_Definition: Locations of stream and abandoned mine and mine processing sites sampled August 5?15, 2002, in the Big Bend area of the United States and Mexico, table 2 of the report
    Attribute:
      Attribute_Label: SITE_ID
      Attribute_Definition: Site identification number from figure 2 of the report
    Attribute:
      Attribute_Label: NAME_LOC
      Attribute_Definition: Site name and general location
    Attribute:
      Attribute_Label: SAMPLE_ID
      Attribute_Definition: Sample identification number
    Attribute:
      Attribute_Label: SITE_TYPE
      Attribute_Definition: Type of material sampled
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: MS
          Enumerated_Domain_Value_Definition: Main stem
        Enumerated_Domain:
          Enumerated_Domain_Value: MT
          Enumerated_Domain_Value_Definition: Mine tailings
        Enumerated_Domain:
          Enumerated_Domain_Value: TR
          Enumerated_Domain_Value_Definition: Tributary
        Enumerated_Domain:
          Enumerated_Domain_Value: SS (MT)
          Enumerated_Domain_Value_Definition: Sample of stream water (site 22, table 4) collected from holding tank at mine-tailing site; sample of streambed sediment (site 22, table 5) collected from creek downstream from processing plant; samples of mine tailings (site 22a,b, tables 6\u20137) collected from mine tailings at processing plant 1, 2.
    Attribute:
      Attribute_Label: ANALYSIS
      Attribute_Definition: Type of analysis or sample medium
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: SW/BS
          Enumerated_Domain_Value_Definition: Stream-water quality and streambed sediment quality
        Enumerated_Domain:
          Enumerated_Domain_Value: Rock/LP
          Enumerated_Domain_Value_Definition: Rock leaching potential
        Enumerated_Domain:
          Enumerated_Domain_Value: SW/Rock/LP/BS
          Enumerated_Domain_Value_Definition: Stream-water quality, rock leaching potential, and streambed sediment quality
    Attribute:
      Attribute_Label: LATITUDE
      Attribute_Definition: Geographic latitude in decimal degrees
    Attribute:
      Attribute_Label: LONGITUDE
      Attribute_Definition: Geographic longitude in decimal degrees
  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: table5.dbf
      Entity_Type_Definition: Streambed-sediment data from samples collected August 6-9, 2002, in the Big Bend area of the United States and Mexico.  The streambed-sediment-quality samples were analyzed for 44 major and trace elements by the USGS Geologic Discipline in Denver, Colo., using the analytical methods discussed in Arbogast (1996), Briggs and Meier (1999), and Taggart (2002).
    Attribute:
      Attribute_Label: SITE_NO
      Attribute_Definition: Site identification number from figure 2 of the report
    Attribute:
      Attribute_Label: SAMPLE_ID
      Attribute_Definition: Sample identification number
    Attribute:
      Attribute_Label: SAMP_TYPE
      Attribute_Definition: Sample type
      Attribute_Domain_Values:
        Enumerated_Domain:
          Enumerated_Domain_Value: Environ.
          Enumerated_Domain_Value_Definition: Environmental sample
    Attribute:
      Attribute_Label: SAMP_LOC
      Attribute_Definition: General description of sample location
    Attribute:
      Attribute_Label: DATE
      Attribute_Definition: Date sample was collected
    Attribute:
      Attribute_Label: CA_PCT
      Attribute_Definition: Calcium expressed in percent by weight
    Attribute:
      Attribute_Label: MN_PCT
      Attribute_Definition: Manganese expressed in percent by weight
    Attribute:
      Attribute_Label: K_PCT
      Attribute_Definition: Potassium expressed in percent by weight
    Attribute:
      Attribute_Label: NA_PCT
      Attribute_Definition: Sodium expressed in percent by weight
    Attribute:
      Attribute_Label: P_PCT
      Attribute_Definition: Phosphorus expressed in percent by weight
    Attribute:
      Attribute_Label: AL_PCT
      Attribute_Definition: Aluminum expressed in percent by weight
    Attribute:
      Attribute_Label: SB_UGG
      Attribute_Definition: Antimony expressed in µg/g
    Attribute:
      Attribute_Label: AS_UGG
      Attribute_Definition: Arsenic expressed in µg/g
    Attribute:
      Attribute_Label: BA_UGG
      Attribute_Definition: Barium expressed in µg/g
    Attribute:
      Attribute_Label: BE_UGG
      Attribute_Definition: Beryllium expressed in µg/g
    Attribute:
      Attribute_Label: BI_UGG
      Attribute_Definition: Bismuth expressed in µg/g
    Attribute:
      Attribute_Label: CD_UGG
      Attribute_Definition: Cadmium expressed in µg/g
    Attribute:
      Attribute_Label: CE_UGG
      Attribute_Definition: Cerium expressed in µg/g
    Attribute:
      Attribute_Label: CR_UGG
      Attribute_Definition: Chromium expressed in µg/g
    Attribute:
      Attribute_Label: CO_UGG
      Attribute_Definition: Cobalt expressed in µg/g
    Attribute:
      Attribute_Label: CU_UGG
      Attribute_Definition: Copper expressed in µg/g
    Attribute:
      Attribute_Label: EU_UGG
      Attribute_Definition: Europium expressed in µg/g
    Attribute:
      Attribute_Label: GA_UGG
      Attribute_Definition: Gallium expressed in µg/g
    Attribute:
      Attribute_Label: AU_UGG
      Attribute_Definition: Gold expressed in µg/g
    Attribute:
      Attribute_Label: HO_UGG
      Attribute_Definition: Holmium expressed in µg/g
    Attribute:
      Attribute_Label: FE_PCT
      Attribute_Definition: Iron expressed in percent by weight
    Attribute:
      Attribute_Label: LA_UGG
      Attribute_Definition: Lanthanum expressed in µg/g
    Attribute:
      Attribute_Label: PB_UGG
      Attribute_Definition: Lead expressed in µg/g
    Attribute:
      Attribute_Label: LI_UGG
      Attribute_Definition: Lithium expressed in µg/g
    Attribute:
      Attribute_Label: MN_UGG
      Attribute_Definition: Manganese expressed in µg/g
    Attribute:
      Attribute_Label: HG_UGG
      Attribute_Definition: Mercury expressed in µg/g
    Attribute:
      Attribute_Label: MO_UGG
      Attribute_Definition: Molybdenum expressed in µg/g
    Attribute:
      Attribute_Label: ND_UGG
      Attribute_Definition: Neodymium expressed in µg/g
    Attribute:
      Attribute_Label: NI_UGG
      Attribute_Definition: Nickel expressed in µg/g
    Attribute:
      Attribute_Label: NB_UGG
      Attribute_Definition: Niobium expressed in µg/g
    Attribute:
      Attribute_Label: SC_UGG
      Attribute_Definition: Scandium expressed in µg/g
    Attribute:
      Attribute_Label: SE_UGG
      Attribute_Definition: Selenium expressed in µg/g
    Attribute:
      Attribute_Label: AG_UGG
      Attribute_Definition: Silver expressed in µg/g
    Attribute:
      Attribute_Label: SR_UGG
      Attribute_Definition: Strontium expressed in µg/g
    Attribute:
      Attribute_Label: TA_UGG
      Attribute_Definition: Tantalum expressed in µg/g
    Attribute:
      Attribute_Label: TL_UGG
      Attribute_Definition: Thallium expressed in µg/g
    Attribute:
      Attribute_Label: TH_UGG
      Attribute_Definition: Thorium expressed in µg/g
    Attribute:
      Attribute_Label: SN_UGG
      Attribute_Definition: Tin expressed in µg/g
    Attribute:
      Attribute_Label: TI_PCT
      Attribute_Definition: Titanium expressed in percent by weight
    Attribute:
      Attribute_Label: V_UGG
      Attribute_Definition: Vanadium expressed in µg/g
    Attribute:
      Attribute_Label: YB_UGG
      Attribute_Definition: Ytterbium expressed in µg/g
    Attribute:
      Attribute_Label: Y_UGG
      Attribute_Definition: Yttrium expressed in µg/g
    Attribute:
      Attribute_Label: ZN_UGG
      Attribute_Definition: Zinc expressed in µg/g
    Attribute:
      Attribute_Label: U_UGG
      Attribute_Definition: Uranium expressed in µg/g
  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: table6.dbf
      Entity_Type_Definition: Mine-tailing data from samples collected August 5-15, 2002, in the Big Bend area of the United States and Mexico.  Samples were analyzed by the TCEQ Environmental Laboratory in Houston, Texas, for 25 inorganic ions and trace elements using USEPA Method 200.7 (U.S. Environmental Protection Agency, 2002)
    Attribute:
      Attribute_Label: SITE_NO
      Attribute_Definition: Site identification number, from figure 2 of the report
    Attribute:
      Attribute_Label: SAMPLE_ID
      Attribute_Definition: Sample identification number
    Attribute:
      Attribute_Label: DATE
      Attribute_Definition: Date sample was collected
    Attribute:
      Attribute_Label: CA_MGKG
      Attribute_Definition: Calcium expressed in mg/kg
    Attribute:
      Attribute_Label: MG_MGKG
      Attribute_Definition: Magnesium expressed in mg/kg
    Attribute:
      Attribute_Label: K_MGKG
      Attribute_Definition: Potassium expressed in mg/kg
    Attribute:
      Attribute_Label: NA_MGKG
      Attribute_Definition: Sodium expressed in mg/kg
    Attribute:
      Attribute_Label: AL_MGKG
      Attribute_Definition: Aluminum expressed in mg/kg
    Attribute:
      Attribute_Label: SB_MGKG
      Attribute_Definition: Antimony expressed in mg/kg
    Attribute:
      Attribute_Label: AS_MGKG
      Attribute_Definition: Arsenic expressed in mg/kg
    Attribute:
      Attribute_Label: BA_MGKG
      Attribute_Definition: Barium expressed in mg/kg
    Attribute:
      Attribute_Label: BE_MGKG
      Attribute_Definition: Beryllium expressed in mg/kg
    Attribute:
      Attribute_Label: CD_MGKG
      Attribute_Definition: Cadmium expressed in mg/kg
    Attribute:
      Attribute_Label: CR_MGKG
      Attribute_Definition: Chromium expressed in mg/kg
    Attribute:
      Attribute_Label: CO_MGKG
      Attribute_Definition: Cobalt expressed in mg/kg
    Attribute:
      Attribute_Label: CU_MGKG
      Attribute_Definition: Copper expressed in mg/kg
    Attribute:
      Attribute_Label: FE_MGKG
      Attribute_Definition: Iron expressed in mg/kg
    Attribute:
      Attribute_Label: PB_MGKG
      Attribute_Definition: Lead expressed in mg/kg
    Attribute:
      Attribute_Label: MN_MGKG
      Attribute_Definition: Manganese expressed in mg/kg
    Attribute:
      Attribute_Label: HG_MGKG
      Attribute_Definition: Mercury expressed in mg/kg
    Attribute:
      Attribute_Label: MO_MGKG
      Attribute_Definition: Molybdenum expressed in mg/kg
    Attribute:
      Attribute_Label: NI_MGKG
      Attribute_Definition: Nickel expressed in mg/kg
    Attribute:
      Attribute_Label: SE_MGKG
      Attribute_Definition: Selenium expressed in mg/kg
    Attribute:
      Attribute_Label: AG_MGKG
      Attribute_Definition: Silver expressed in mg/kg
    Attribute:
      Attribute_Label: TL_MGKG
      Attribute_Definition: Thallium expressed in mg/kg
    Attribute:
      Attribute_Label: SN_MGKG
      Attribute_Definition: Tin expressed in mg/kg
    Attribute:
      Attribute_Label: V_MGKG
      Attribute_Definition: Vanadium expressed in mg/kg
    Attribute:
      Attribute_Label: ZN_MGKG
      Attribute_Definition: Zinc expressed in mg/kg
  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: table7.dbf
      Entity_Type_Definition: Toxicity Characteristic Leaching Procedure leaching potential (concentrations) for mine-tailing samples collected August 5-15, 2002 (table 6) in the Big Bend area of the United States and Mexico.  The Toxicity Characteristic Leaching Procedure (TCLP), using USEPA SW-846 analytical method 1311, was designed to simulate the leaching of contaminants in landfills (Environment, Health and Safety Online, 2007; U.S. Environmental Protection Agency, 1992).
    Attribute:
      Attribute_Label: SITE_NO
      Attribute_Definition: Site identification number, from figure 2 of the report
    Attribute:
      Attribute_Label: SAMPLE_ID
      Attribute_Definition: Sample identification number
    Attribute:
      Attribute_Label: DATE
      Attribute_Definition: Date sample was collected
    Attribute:
      Attribute_Label: SB_MGL
      Attribute_Definition: Antimony expressed in mg/L
    Attribute:
      Attribute_Label: AS_MGL
      Attribute_Definition: Arsenic expressed in mg/L
    Attribute:
      Attribute_Label: BA_MGL
      Attribute_Definition: Barium expressed in mg/L
    Attribute:
      Attribute_Label: BE_MGL
      Attribute_Definition: Beryllium expressed in mg/L
    Attribute:
      Attribute_Label: CD_MGL
      Attribute_Definition: Cadmium expressed in mg/L
    Attribute:
      Attribute_Label: CR_MGL
      Attribute_Definition: Chromium expressed in mg/L
    Attribute:
      Attribute_Label: PB_MGL
      Attribute_Definition: Lead expressed in mg/L
    Attribute:
      Attribute_Label: NI_MGL
      Attribute_Definition: Nickel expressed in mg/L
    Attribute:
      Attribute_Label: SE_MGL
      Attribute_Definition: Selenium expressed in mg/L
    Attribute:
      Attribute_Label: AG_MGL
      Attribute_Definition: Silver expressed in mg/L
Distribution_Information:
  Distributor:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: USGS Information Services
      Contact_Address:
        Address_Type: mailing
        Address: Box 25286, Denver Federal Center
        City: Denver
        State_or_Province: Colorado
        Postal_Code: 80255-0046
        Country: USA
      Contact_Voice_Telephone: 1-888-ASK-USGS
      Contact_Facsimile_Telephone: 1-303-202-4695
      Contact_Electronic_Mail_Address: infoservices@usgs.gov
  Resource_Description: USGS SIR 2008-5032
  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.
  Standard_Order_Process:
    Digital_Form:
      Digital_Transfer_Information:
        Format_Name: Shapefile
        Format_Version_Number: 1.0
        Format_Information_Content: Site and sample characteristics and chemical analyses
        File_Decompression_Technique: unzip
      Digital_Transfer_Option:
        Online_Option:
          Computer_Contact_Information:
            Network_Address:
              Network_Resource_Name: http://pubs.usgs.gov/sir/2008/5032/data/2008-5032.zip
    Fees: none
Metadata_Reference_Information:
  Metadata_Date: 20080805
  Metadata_Contact:
    Contact_Information:
      Contact_Person_Primary:
        Contact_Person: Peter N Schweitzer
        Contact_Organization: USGS ER GD
      Contact_Position: Geologist
      Contact_Address:
        Address_Type: mailing address
        Address: 12201 Sunrise Valley Drive
        City: Reston
        State_or_Province: VA
        Postal_Code: 20192-0002
        Country: USA
      Contact_Voice_Telephone: 703-648-6533
      Contact_Facsimile_Telephone: 703-648-6252
      Contact_Electronic_Mail_Address: pschweitzer@usgs.gov
  Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata
  Metadata_Standard_Version: FGDC-STD-001-1998