Trace element geochemical data from reanalysis of stream-sediment samples collected in 1981 from the Fairbanks mining district, Alaska

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What does this data set describe?

Title:
Trace element geochemical data from reanalysis of stream-sediment samples collected in 1981 from the Fairbanks mining district, Alaska
Abstract:
The geochemical analyses in this report result from the reanalysis of 932 archived stream-sediment pulps from the northern Fairbanks D-1, northern Fairbanks D-2, Fairbanks D-3 and southern Livengood A-1 and A-2 Quadrangles. The original geochemical data set included 1013 stream-sediment samples, (Albanese, 1982a-c).
Supplemental_Information:
Attribute information for the following tables (entities) is included in this metadata file under the "Entity_and_Attribute_Information" section. Each table is listed and described in detail under its own heading starting "Entity_Type_Label." Tables include:
table1_locations    locations of reanalyzed stream sediments
table2_geochem    concentration of trace elements in reanalyzed stream sediments
table3_methods    detection limits and analytical methods
  1. How should this data set be cited?

    Jozwik, Diana, 200704, Trace element geochemical data from reanalysis of stream-sediment samples collected in 1981 from the Fairbanks mining district, Alaska: Raw Data File RDF 2007-1, State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys, Fairbanks, AK USA.

    Online Links:

    Other_Citation_Details: 170 pp.

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -148.50000
    East_Bounding_Coordinate: -147.00000
    North_Bounding_Coordinate: 65.25000
    South_Bounding_Coordinate: 64.75000

  3. What does it look like?

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

    Beginning_Date: 1981
    Ending_Date: 2007
    Currentness_Reference: publication date

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

    Geospatial_Data_Presentation_Form: tabular digital data

  6. How does the data set represent geographic features?

    1. How are geographic features stored in the data set?

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

      Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.0001. Longitudes are given to the nearest 0.0001. Latitude and longitude values are specified in Decimal degrees.

      The horizontal datum used is North American Datum of 1927.
      The ellipsoid used is Clarke 1866.
      The semi-major axis of the ellipsoid used is 6378137.
      The flattening of the ellipsoid used is 1/298.25722210088.

  7. How does the data set describe geographic features?

    table1_locations.csv
    Locations of reanalyzed stream sediments collected in 1981 from the Fairbanks Mining District, Alaska (Source: Alaska Division of Geological & Geophysical Surveys)

    Sample
    Items in the Sample_Number field. (Source: Alaska Division of Geological & Geophysical Surveys)

    Items in the Sample_Number field (a unique sample identifier present in Tables 1 and 2) are based on the following generic example: FBXYY-QQ_9999-X: FBX = Fairbanks, YY = last two digits of year, QQ = Quadrangle sample located in either Fairbanks or Livengood area, 9999=unique station number, X=unique alpha or numerical character designating which sample out of many was taken at the field station. Also X = R,S where R=Rock or S=Sediment. Used when two samples are at the same location but different types of material was sampled.

    Latitude
    Latitude, NAD 27 (Source: Alaska Division of Geological & Geophysical Surveys)

    Range of values
    Minimum:64.2500
    Maximum:64.7500
    Units:decimal degree

    Longitude
    Longitude, NAD 27 (Source: Alaska Division of Geological & Geophysical Surveys)

    Range of values
    Minimum:-147.0000
    Maximum:-148.5000
    Units:decimal degree

    UTM E
    Easting for UTM Zone6, NAD 27 (Source: Alaska Division of Geological & Geophysical Surveys)

    Range of values
    Minimum:427290
    Maximum:500000
    Units:meters

    UTM N
    Northing for UTM Zone6, NAD 27 (Source: Alaska Division of Geological & Geophysical Surveys)

    Range of values
    Minimum:7125534
    Maximum:7180399
    Units:meters

    UTM Zone
    UTM zone of sample location (Source: Alaska Division of Geological & Geophysical Surveys)

    ValueDefinition
    6UTM zone

    table2_geochem.csv
    Concentration of trace elements in reanalyzed stream sediments collected in 1981 from the Fairbanks Mining District, Alaska. (Source: Alaska Division of Geological and Geophysical Surveys)

    Sample
    Items in the Sample_Number field. (Source: Alaska Division of Geological & Geophysical Surveys)

    Items in the Sample_Number field (a unique sample identifier present in Tables 1 and 2) are based on the following generic example: FBXYY-QQ_9999-X: FBX = Fairbanks, YY = last two digits of year, QQ = Quadrangle sample located in either Fairbanks or Livengood area, 9999=unique station number, X=unique alpha or numerical character designating which sample out of many was taken at the field station. Also X = R,S where R=Rock or S=Sediment. Used when two samples are at the same location but different types of material was sampled.

    Au
    Gold values acquired by analysis with Instrumental Neutron Activation Analysis (INAA) and shown in parts per billion (ppb). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:5
    Maximum:10000

    Ir
    Iridium values acquired by analysis with Instrumental Neutron Activation Analysis (INAA) and shown in parts per billion (ppb). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:100
    Maximum:1000

    Ag
    Silver values acquired by analysis with Instrumental Neutron Activation Analysis (INAA) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:5
    Maximum:300

    Zn
    Zinc values acquired by analysis with Instrumental Neutron Activation Analysis (INAA) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:200
    Maximum:30000

    Mo
    Molybdenum values acquired by analysis with Instrumental Neutron Activation Analysis (INAA) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:2
    Maximum:30000

    Ni
    Nickel values acquired by analysis with Instrumental Neutron Activation Analysis (INAA) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:20
    Maximum:30000

    Co
    Cobalt values acquired by analysis with Instrumental Neutron Activation Analysis (INAA) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:10
    Maximum:20000

    Cd
    Cadmium values acquired by analysis with Instrumental Neutron Activation Analysis (INAA) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:10
    Maximum:2000

    As
    Arsenic values acquired by analysis with Instrumental Neutron Activation Analysis (INAA) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:1
    Maximum:10000

    Sb
    Antimony values acquired by analysis with Instrumental Neutron Activation Analysis (INAA) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:0.2
    Maximum:9999

    Fe
    Iron values acquired by analysis with Instrumental Neutron Activation Analysis (INAA) and shown in percent (pct). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:0.5
    Maximum:10

    Se
    Selenium values acquired by analysis with Instrumental Neutron Activation Analysis (INAA) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:10
    Maximum:30000

    Te
    Tellurium values acquired by analysis with Instrumental Neutron Activation Analysis (INAA) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:20
    Maximum:20000

    Yb
    Ytterbium values acquired by analysis with Instrumental Neutron Activation Analysis (INAA) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:5
    Maximum:2000

    Lu
    Lutetium values acquired by analysis with Instrumental Neutron Activation Analysis (INAA) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:0.5
    Maximum:2000

    Sc
    Scandium values acquired by analysis with Instrumental Neutron Activation Analysis (INAA) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:0.5
    Maximum:2000

    Hf
    Hafnium values acquired by analysis with Instrumental Neutron Activation Analysis (INAA) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:2
    Maximum:30000

    Ta
    Tantalum values acquired by analysis with Instrumental Neutron Activation Analysis (INAA) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:1
    Maximum:2000

    Th
    Thorium values acquired by analysis with Instrumental Neutron Activation Analysis (INAA) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:0.5
    Maximum:3000

    U
    Uranium values acquired by analysis with Instrumental Neutron Activation Analysis (INAA) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:0.5
    Maximum:2000

    Na
    Sodium values acquired by analysis with Instrumental Neutron Activation Analysis (INAA) and shown in percent (pct). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:0.05
    Maximum:10

    Br
    Bromine values acquired by analysis with Instrumental Neutron Activation Analysis (INAA) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:1
    Maximum:30000

    Rb
    Rubidium values acquired by analysis with Instrumental Neutron Activation Analysis (INAA) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:10
    Maximum:10000

    Zr
    Zirconium values acquired by analysis with Instrumental Neutron Activation Analysis (INAA) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:500
    Maximum:10000

    Ba
    Barium values acquired by analysis with Instrumental Neutron Activation Analysis (INAA) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:100
    Maximum:20000

    Cr
    Chromium values acquired by analysis with Instrumental Neutron Activation Analysis (INAA) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:50
    Maximum:30000

    Sn
    Tin values acquired by analysis with Instrumental Neutron Activation Analysis (INAA) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:200
    Maximum:30000

    W
    Tungsten values acquired by analysis with Instrumental Neutron Activation Analysis (INAA) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:2
    Maximum:30000

    Cs
    Cesium values acquired by analysis with Instrumental Neutron Activation Analysis (INAA) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:1
    Maximum:10000

    La
    Lanthanum values acquired by analysis with Instrumental Neutron Activation Analysis (INAA) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:5
    Maximum:30000

    Ce
    Cerium values acquired by analysis with Instrumental Neutron Activation Analysis (INAA) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:10
    Maximum:30000

    Sm
    Samarium values acquired by analysis with Instrumental Neutron Activation Analysis (INAA) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:0.2
    Maximum:2000

    Eu
    Europium values acquired by analysis with Instrumental Neutron Activation Analysis (INAA) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:2
    Maximum:30000

    Tb
    Terbium values acquired by analysis with Instrumental Neutron Activation Analysis (INAA) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:1
    Maximum:30000

    Ag
    Silver values acquired by analysis with Inductively Coupled Plasma (ICP) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:0.5
    Maximum:50

    Cu
    Copper values acquired by analysis with Inductively Coupled Plasma (ICP) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:1
    Maximum:20000

    Pb
    Lead values acquired by analysis with Inductively Coupled Plasma (ICP) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:2
    Maximum:10000

    Zn
    Zinc values acquired by analysis with Inductively Coupled Plasma (ICP) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:2
    Maximum:20000

    Mo
    Molybdenum values acquired by analysis with Inductively Coupled Plasma (ICP) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:1
    Maximum:20000

    Ni
    Nickel values acquired by analysis with Inductively Coupled Plasma (ICP) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:1
    Maximum:20000

    Co
    Cobalt values acquired by analysis with Inductively Coupled Plasma (ICP) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:1
    Maximum:20000

    Cd
    Cadmium values acquired by analysis with Inductively Coupled Plasma (ICP) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:2
    Maximum:2000

    Bi
    Bismuth values acquired by analysis with Inductively Coupled Plasma (ICP) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:5
    Maximum:2000

    As
    Arsenic values acquired by analysis with Inductively Coupled Plasma (ICP) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:5
    Maximum:10000

    Sb
    Antimony values acquired by analysis with Inductively Coupled Plasma (ICP) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:5
    Maximum:2000

    Fe
    Iron values acquired by analysis with Inductively Coupled Plasma (ICP) and shown in percent (pct). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:0.01
    Maximum:10

    Mn
    Manganese values acquired by analysis with Inductively Coupled Plasma (ICP) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:5
    Maximum:20000

    Te
    Tellurium values acquired by analysis with Inductively Coupled Plasma (ICP) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:25
    Maximum:2000

    Ba
    Barium values acquired by analysis with Inductively Coupled Plasma (ICP) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:5
    Maximum:2000

    Cr
    Chromium values acquired by analysis with Inductively Coupled Plasma (ICP) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:2
    Maximum:20000

    V
    Vanadium values acquired by analysis with Inductively Coupled Plasma (ICP) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:2
    Maximum:2000

    Sn
    Tin values acquired by analysis with Inductively Coupled Plasma (ICP) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:20
    Maximum:2000

    W
    Tungsten values acquired by analysis with Inductively Coupled Plasma (ICP) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:20
    Maximum:2000

    Li
    Lithium values acquired by analysis with Inductively Coupled Plasma (ICP) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:2
    Maximum:2000

    Ga
    Gallium values acquired by analysis with Inductively Coupled Plasma (ICP) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:10
    Maximum:2000

    La
    Lanthanum values acquired by analysis with Inductively Coupled Plasma (ICP) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:5
    Maximum:2000

    Ta
    Tantalum values acquired by analysis with Inductively Coupled Plasma (ICP) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:100
    Maximum:2000

    Ti
    Titanium values acquired by analysis with Inductively Coupled Plasma (ICP) and shown in percent (pct). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:0.01
    Maximum:10

    Al
    Aluminum values acquired by analysis with Inductively Coupled Plasma (ICP) and shown in percent (pct). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg)

    Range of values
    Minimum:0.01
    Maximum:10

    Mg
    Magnesium values acquired by analysis with Inductively Coupled Plasma (ICP) and shown in percent (pct). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:0.01
    Maximum:10

    Ca
    Calcium values acquired by analysis with Inductively Coupled Plasma (ICP) and shown in percent (pct). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:0.01
    Maximum:10

    Na
    Sodium values acquired by analysis with Inductively Coupled Plasma (ICP) and shown in percent (pct). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:0.01
    Maximum:10

    K
    Potassium values acquired by analysis with Inductively Coupled Plasma (ICP) and shown in percent (pct). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:0.01
    Maximum:10

    Nb
    Niobium values acquired by analysis with Inductively Coupled Plasma (ICP) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:5
    Maximum:2000

    Sr
    Strontium values acquired by analysis with Inductively Coupled Plasma (ICP) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:1
    Maximum:2000

    Y
    Yttrium values acquired by analysis with Inductively Coupled Plasma (ICP) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:5
    Maximum:2000

    Zr
    Zirconium values acquired by analysis with Inductively Coupled Plasma (ICP) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:5
    Maximum:2000

    Bi
    Bismuth values acquired by analysis with atomic absorption spectroscopy (AAS) and shown in parts per million (ppm). (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:0.2
    Maximum:10000

    table3_methods.csv
    Detection limits and analytical methods for trace-element geochemical analyses. (Source: State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys)

    Element
    Element analyzed. (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    ValueDefinition
    Augold
    IrIridium
    Agsilver
    ZnZinc
    MoMolybdenum
    NiNickel
    CoCobalt
    CdCadmium
    AsArsenic
    Sbantimony
    FeIron
    SeSelenium
    TeTellurium
    YbYtterbium
    LuLutetium
    ScScandium
    HfHafnium
    TaTantalum
    ThThorium
    UUranium
    NaSodium
    BrBromine
    RbRubidium
    ZrZirconium
    BaBarium
    CrChromium
    SnTin
    WTungsten
    CsCesium
    LaLanthanum
    CeCerium
    SmSamarium
    EuEuropium
    TbTerbium
    Cucopper
    PbLead
    BiBismuth
    MnManganese
    VVanadium
    LiLithium
    GaGallium
    AlAluminum
    MgMagnesium
    CaCalcium
    KPotassium
    NbNiobium
    SrStrontium
    YYttrium

    Units
    Parts per billion (ppb), parts per million (ppm) or percent (pct) (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    ValueDefinition
    PPMparts per million
    PPBparts per billion
    PCTpercent

    Lower detection limit
    Lower detection limit (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    Range of values
    Minimum:0.01
    Maximum:0.5
    Units:pct

    Range of values
    Minimum:5
    Maximum:100
    Units:ppb

    Range of values
    Minimum:0.2
    Maximum:500
    Units:ppm

    Upper detection limit
    Upper detection limit (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    ValueDefinition
    10upper limit of detection measured in percent

    Range of values
    Minimum:1000
    Maximum:10000
    Units:ppb

    Range of values
    Minimum:50
    Maximum:30000
    Units:ppm

    Analytical method
    INAA = Instrumental Neutron Activation Analysis, ICP = Inductively Coupled Plasma and AA = Atomic Absorption Spectroscopy (Source: Alaska Division of Geological & Geophysical Surveys and Bondar-Clegg.)

    ValueDefinition
    INAAInstrumental Neutron Activation Analysis
    ICPInductively Coupled Plasma
    AAAtomic Absorption


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?

    The data set was funded by the State of Alaska in conjunction with the 1995 Fairbanks STATEMAP geologic mapping project.

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


Why was the data set created?

This publication contains unpublished geochemical data from part of geological and mineral investigations of the Fairbanks Mining District funded by the State of Alaska through the Fairbanks North Star Borough, and conducted by the Alaska Division of Geological & Geophysical Surveys (DGGS), Mineral Industry Research Laboratory (MIRL), University of Alaska and Department of Geology and Geophysics, University of Alaska Fairbanks in 1995. The samples were collected during May-July 1981. Original analyses with limited suite of elements was conducted in 1981 (Albanese, 1982a-c). The reanalysis contains a more extensive suite of elements using Instrumental Neutron Activation, Inductively Coupled Plasma and Atomic Absorption Analyses.


How was the data set created?

  1. From what previous works were the data drawn?

    Albanese (1982a) (source 1 of 3)
    Albanese, M.D., 1982, Geochemical reconnaissance of the northern Fairbanks D-1 and southern Livengood A-1 Quadrangles; summary of data on pan-concentrate, stream-sediment, and rock samples: Alaska Open-File Report AOF 164, State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys, Fairbanks, AK USA.

    Other_Citation_Details: 28 p., 3 sheets, scale 1:63,360
    Type_of_Source_Media: paper
    Source_Scale_Denominator: 63360
    Source_Contribution:
    Original geochemical data set which included 1013 stream-sediment samples.

    Albanese (1982b) (source 2 of 3)
    Albanese, M.D., 1982, Geochemical reconnaissance of the northern Fairbanks D-1 and southern Livengood A-1 Quadrangles; summary of data on pan-concentrate, stream-sediment, and rock samples: Alaska Open-File Report AOF 165, State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys, Fairbanks, AK USA.

    Other_Citation_Details: 25 p., 3 sheets, scale 1:63,360
    Type_of_Source_Media: paper
    Source_Scale_Denominator: 63360
    Source_Contribution:
    Original geochemical data set which included 1013 stream-sediment samples.

    Albanese (1982c) (source 3 of 3)
    Albanese, M.D., 1982, Geochemical reconnaissance of the northern Fairbanks D-1 and southern Livengood A-1 Quadrangles; summary of data on pan-concentrate, stream-sediment, and rock samples: Alaska Open-File Report AOF 166, State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys, Fairbanks, AK USA.

    Other_Citation_Details: 17 p., 3 sheets, scale 1:63,360
    Type_of_Source_Media: paper
    Source_Scale_Denominator: 63360
    Source_Contribution:
    Original geochemical data set which included 1013 stream-sediment samples.

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

    Date: 1981 (process 1 of 4)
    Field work: Samples were collected from May-July 1981 by DGGS staff members T.E. Smith, T.K. Bundtzen, M.S. Robinson, M.D. Albanese, D.N. Solie, V.M. Ferrell, G.M. Laird, J.D. Blum, M.H. Hall, J.D. Clough, and S.A. Liss; MIRL staff members P.A. Metz and B.W. Campbell; and D.B. Hawkins of the University of Alaska. A brief introduction and original tables can be found in Albanese (1982a, 1982b, 1982c). Additional collection information is unavailable.

    Data sources used in this process:

    • Albanese (1982a)
    • Albanese (1982b)
    • Albanese (1982c)

    Date: 1981 (process 2 of 4)
    1981 Lab work: The pulps were prepared at the DGGS Geochemical Laboratory in 1981 by air-drying before screening for the -80 (180 micron) mesh fraction. Copper, lead, zinc, gold, silver, and molybdenum were analyzed at the DGGS laboratory by atomic-absorption spectrophotometry with a lower detection limit of 0.01 ppm. DGGS laboratory staff involved in these analyses include M.A. Wiltse, D.R. Stein, N.C. Veach, M.R. Ashwell, T.A. Benjamin, M.K. Polly, C.L. Smith, and S.W. Seed. Tin, tungsten, mercury, and arsenic were analyzed by Bondar-Clegg & Co. Ltd., Vancouver, B.C. Tungsten and arsenic were analyzed by coulometry with a lower detection limit of 2 ppm. Mercury was analyzed by cold-vapor atomic-absorption spectrophotometry with a lower detection limit of 5 ppb. Tin was analyzed by X-ray fluorescence with a lower detection limit of 5 ppm. A brief introduction and original tables can be found in Albanese (1982a, 1982b, 1982c).

    Data sources used in this process:

    • Albanese (1982a)
    • Albanese (1982b)
    • Albanese (1982c)

    Date: Unknown (process 3 of 4)
    Storage: After initial analysis by the DGGS lab in 1981, the pulps were stored outside the DGGS warehouse under a tarp until they were brought to the DGGS lab to be re-packaged and sent out for analysis in 1995.

    Date: 1995 (process 4 of 4)
    1995 Lab work: All trace-element geochemical reanalyses (Table 2) were performed on pulps by Bondar-Clegg. A suite of 34 trace elements were analyzed by Instrumental Neutron Activation Analysis (INAA) and a suite of 33 trace elements were analyzed by Inductively Coupled Plasma-Atomic Emission Spectroscopy (ICP-AES) after HF-HNO3-HClO4 acid digestion with HCl leach (four-acid, near-total digestion). This method of digestion is possibly incomplete for certain elements and may result in lower analytical results. The elements with possible incomplete digestion are Ba, Cr, Ti and W. Additional partial digestion of certain elements is not known for the year 1995. In addition, bismuth was analyzed by Atomic Absorption (AA) after hydride generation. Elements analyzed by each method and analytical detection limits are tabulated in Table 3.

  3. What similar or related data should the user be aware of?

    Albanese, M.D., 1982, Geochemical reconnaissance of the northern Fairbanks D-1 and southern Livengood A-1 Quadrangles; summary of data on pan-concentrate, stream-sediment, and rock samples: Alaska Open-File Report AOF 164, State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys, Fairbanks, AK USA.

    Online Links:

    Other_Citation_Details: 28 p., 3 sheets, scale 1:63,360
    Albanese, M.D., 1982, Geochemical reconnaissance of the northern Fairbanks D-2 and southern Livengood A-2 Quadrangles; summary of data on stream-sediment, pan-concentrate, and rock samples: Alaska Open File Report AOF 165, State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys, Fairbanks, AK, USA.

    Online Links:

    Other_Citation_Details: 25 p., 3 sheets, scale 1:63,360
    Albanese, M.D., 1982, Geochemical reconnaissance of the Fairbanks D-3 Quadrangle; summary of data on stream-sediment, pan-concentrate, and rock samples: Alaska Open-File Report AOF 166, State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys, Fairbanks, AK, USA.

    Online Links:

    Other_Citation_Details: 17 p., 3 sheets, scale 1:63,360


How reliable are the data; what problems remain in the data set?

  1. How well have the observations been checked?

    All trace-element geochemical reanalyses were performed on pulps by Bondar-Clegg in 1995. The pulps were prepared at the DGGS Geochemical Laboratory in 1981 by air-drying before screening for the -80 (180 micron) mesh fraction. After initial analysis by the DGGS lab in 1981, the pulps were stored outside the DGGS warehouse under a tarp until they were brought to the DGGS lab to be re-packaged and sent out for analysis in 1995. A suite of 34 trace elements were analyzed by Instrumental Neutron Activation Analysis (INAA) and a suite of 33 trace elements were analyzed by Inductively Coupled Plasma-Atomic Emission Spectroscopy (ICP-AES) after HF-HNO3-HClO4 acid digestion with HCl leach (four-acid, near-total digestion). This method of digestion is possibly incomplete for certain elements and may result in lower analytical results. The elements with possible incomplete digestion are Ba, Cr, Ti and W. Additional partial digestion of certain elements is not known for the year 1995. Bismuth was analyzed by Atomic Absorption (AA) after hydride generation. Elements analyzed by each method and analytical detection limits are tabulated in Table 3.

  2. How accurate are the geographic locations?

    Location data were determined by two methods: on-screen digitizing sample locations using ArcGIS v9.1 from the original field maps onto spatially registered topographic maps downloaded from Alaska Geospatial Data Clearinghouse; or using the published locations in Albanese (1982a-c). Location data (in UTM coordinates with a Clark 1866, NAD27, UTM zone 6 projection) are presented in Table 1.

  3. How accurate are the heights or depths?

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

    This dataset contains all of the samples selected for trace-element geochemical reanalyses in the Fairbanks and Livengood quadrangles during the summer of 1981.

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

    No topologic relationships are present in the data.


How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?

Access_Constraints:
This report, map, and/or dataset are available directly from the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys (see contact information below).
Use_Constraints:
Any hard copies or published datasets utilizing these datasets shall clearly indicate their source. If the user has modified the data in any way, the user is obligated to describe the types of modifications the user has made. User specifically agrees not to misrepresent these datasets, nor to imply that changes made by the user were approved by the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys.

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

    State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys
    Natural Resource Technician
    3354 College Road
    Fairbanks, AK 99709-3707
    USA

    907-451-5020 (voice)
    907-451-5050 (FAX)
    dggspubs@dnr.state.ak.us

    Hours_of_Service: 8 am to 4:30 pm, Monday through Friday, except State holidays
    Contact_Instructions:
    Please view our Web site (<http://www.dggs.dnr.state.ak.us>) for the latest information on available data. Please contact us using the e-mail address provided above when possible.
  2. What's the catalog number I need to order this data set?

    Raw Data File 2007-1

  3. What legal disclaimers am I supposed to read?

    The State of Alaska makes no express or implied warranties (including warranties of merchantability and fitness) with respect to the character, function, or capabilities of the electronic services or products or their appropriateness for any user's purposes. In no event will the State of Alaska be liable for any incidental, indirect, special, consequential, or other damages suffered by the user or any other person or entity whether from the use of the electronic services or products, any failure thereof, or otherwise, and in no event will the State of Alaska's liability to the requester or anyone else exceed the fee paid for the electronic service or product.

  4. How can I download or order the data?

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

    CSV (Comma Separated Value) files can be imported and formatted with Microsoft Excel, OpenOffice.org Calc, or most spreadsheet and text editor programs.


Who wrote the metadata?

Dates:
Last modified: 06-May-2008
Last Reviewed: 06-May-2008
To be reviewed: 08-Mar-2009
Metadata author:
Diana Jozwik
State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys
Geologist
3354 College Road
Fairbanks, AK 99709-3707
USA

907-451-5039 (voice)
907-451-5050 (FAX)
dggspubs@dnr.state.ak.us

Hours_of_Service: 8 am to 4:30 pm, Monday through Friday, except State holidays.
Contact_Instructions:
Please contact us through the e-mail address above whenever possible.
Metadata standard:
FGDC Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)


Generated by mp version 2.9.6 on Tue May 06 14:29:37 2008