Major and trace element geochemistry of ferromanganese crusts from seamounts within the Tuvalu Exclusive Economic Zone

Metadata also available as - [Outline] - [Parseable text] - [XML]

Frequently anticipated questions:


What does this data set describe?

Title:
Major and trace element geochemistry of ferromanganese crusts from seamounts within the Tuvalu Exclusive Economic Zone
Abstract:
Ferromanganese crusts were collected via dredge from seamounts within the Tuvalu Exclusive Economic Zone in the Pacific Ocean during cruise RR1310 funded by the National Science Foundation aboard the R/V Roger Revelle in 2013. USGS scientists requested these ferromanganese crust samples from the Oregon State University Marine and Geology Repository where they had been archived. Ferromanganese crust samples were sent to USGS for subsampling and major and trace element geochemical analyses. Major and trace element data and thickness for the ferromanganese crusts as well as location information (latitude, longitude, depth) for each sample are provided here.
Supplemental_Information:
Samples analyzed for this data release were collected on a cruise funded by National Science Foundation grant #1154070. All metadata associated with cruise RR1310 is available upon request from the Oregon State University Marine and Geology Repository (http://osu-mgr.org). Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
  1. How might this data set be cited?
    Mizell, Kira, 20230125, Major and trace element geochemistry of ferromanganese crusts from seamounts within the Tuvalu Exclusive Economic Zone: data release DOI: 10.5066/P95CIHSU, U.S. Geological Survey, Pacific Coastal and Marine Science Center, Santa Cruz, California.

    Online Links:

    This is part of the following larger work.

    Mizell, Kira, 2023, Major and trace element geochemistry and mineralogy of ferromanganese crusts from seamounts within the Tuvalu Exclusive Economic Zone: data release DOI:10.5066/P95CIHSU, U.S. Geological Survey, Pacific Coastal and Marine Science Center, Santa Cruz, California.

    Online Links:

  2. What geographic area does the data set cover?
    West_Bounding_Coordinate: -176.7556
    East_Bounding_Coordinate: 172.7104
    North_Bounding_Coordinate: -3.9656
    South_Bounding_Coordinate: -13.2404
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
    Beginning_Date: 22-Jul-2013
    Ending_Date: 23-Dec-2021
    Currentness_Reference:
    Date that the last process step was completed
  5. What is the general form of this data set?
    Geospatial_Data_Presentation_Form: comma-delimited text
  6. How does the data set represent geographic features?
    1. How are geographic features stored in the data set?
      This is a Point data set. It contains the following vector data types (SDTS terminology):
      • Point (55)
    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 0.001. Longitudes are given to the nearest 0.001. Latitude and longitude values are specified in Decimal degrees. The horizontal datum used is D_WGS_1984.
      The ellipsoid used is WGS_1984.
      The semi-major axis of the ellipsoid used is 6378137.0.
      The flattening of the ellipsoid used is 1/298.257222101.
  7. How does the data set describe geographic features?
    Tuvalu_RR1310_FeMn_geochem_data.csv
    Comma-delimited file containing results from geochemical analyses of ferromanganese crusts at the latitude, longitude, and water depth of each sample location. (Source: Producer defined)
    Sample_ID
    The sample and dredge ID for each sample (Source: Originally defined onboard ship during the cruise by cruise participants. For several samples, IDs were updated by USGS.) The sample names include the dredge number (D, denoting dredge, followed by a number) and a further underscored number to denote the sample number. The addition of a two in parenthesis indicates that more than one rock was given the same Sample ID and that rock two of two was analyzed. For one sample, D28-01, an L followed by a number and a stratigraphic location was added to explain specific layers that were analyzed.
    Latitude
    Latitude at which sample was collected (Source: producer defined)
    Range of values
    Minimum:-11.451
    Maximum:-5.648
    Units:decimal degrees
    Resolution:0.001
    Longitude
    Longitude at which sample was collected (Source: producer defined)
    Range of values
    Minimum:-179.803
    Maximum:-179.875
    Units:decimal degrees
    Resolution:0.001
    Water_Depth
    Water depth in meters at which the sample was collected (Source: producer defined)
    Range of values
    Minimum:2286
    Maximum:4110
    Units:meters (m)
    Resolution:1
    Genetic_Type
    The genetic type for each mineral sample (Source: Producer defined)
    ValueDefinition
    hydrogeneticthe sample or subsample is a hydrogenetic ferromangense crust, which means the mineral was precipitated predominantly from seawater
    hydrothermalthe sample or subsample is a hydrothermally mineralized sample and hydrothermal fluid contributed to sample formation
    Bulk_Layer
    Defines whether the sample analyzed was a bulk sample, a discrete layer sample, or a spherical nodule sample (Source: Producer defined)
    ValueDefinition
    Bthis is a bulk sample
    Lthis is a layer sample
    nodulethis is a spherical nodule sample
    sample_depth_interval
    The depth interval, measured in millimeters from the top of the stratigraphic section, that encompasses each rock layer sample (Source: Producer defined) Sample and layer subsample intervals are listed as ranges of integer values that represent the depth in millimeters below the surface of the crust. Samples with NA listed do not have a morphology that allows for an interval to be measured and defined.
    Fe
    Iron concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:6500
    Maximum:268000
    Units:parts per million
    Resolution:100
    Mn
    Manganese concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:87900
    Maximum:313600
    Units:parts per million
    Resolution:100
    Si
    Silicon concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:4200
    Maximum:146900
    Units:parts per million
    Resolution:100
    Al
    Aluminum concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:3000
    Maximum:52700
    Units:parts per million
    Resolution:100
    Mg
    Magnesium concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:9900
    Maximum:18600
    Units:parts per million
    Resolution:100
    Ca
    Calcium concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:20200
    Maximum:213700
    Units:parts per million
    Resolution:100
    Na
    Sodium concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:3800
    Maximum:22900
    Units:parts per million
    Resolution:100
    K
    Potassium concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:3100
    Maximum:25300
    Units:parts per million
    Resolution:100
    Ti
    Titanium concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:300
    Maximum:21700
    Units:parts per million
    Resolution:100
    P
    Phosphorus concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:300
    Maximum:11600
    Units:parts per million
    Resolution:100
    S
    Sulfur concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:500
    Maximum:2900
    Units:parts per million
    Resolution:100
    CO2
    carbon dioxide concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:2700
    Maximum:227400
    Units:parts per million
    Resolution:100
    LOI
    Loss on ignition when heated to 1000 C for each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:263000
    Maximum:4585000
    Units:parts per million
    Resolution:100
    H2OM
    Quantity of H2O-, or sorbed water, in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:50000
    Maximum:266000
    Units:parts per million
    Resolution:1000
    H2OP
    Quantity of H2O+, or structural water, in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:47000
    Maximum:253000
    Units:parts per million
    Resolution:1000
    Ag
    Silver concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:0.02
    Maximum:1.33
    Units:parts per million
    Resolution:0.01
    As
    Arsenic concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:9.5
    Maximum:307.9
    Units:parts per million
    Resolution:0.1
    Ba
    Barium concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:405
    Maximum:2073
    Units:parts per million
    Resolution:1
    Be
    Berrylium concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:0.2
    Maximum:8.2
    Units:parts per million
    Resolution:0.1
    Bi
    Bismuth concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:0.2
    Maximum:43.3
    Units:parts per million
    Resolution:0.1
    Cd
    Cadmium concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:2.0
    Maximum:19.9
    Units:parts per million
    Resolution:0.1
    Cl
    Chlorine concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:574
    Maximum:12768
    Units:parts per million
    Resolution:1
    Co
    Cobalt concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:46
    Maximum:12808
    Units:parts per million
    Resolution:1
    Cr
    Chromium concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:1.1
    Maximum:107.9
    Units:parts per million
    Resolution:0.1
    Cu
    Copper concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:554
    Maximum:2881
    Units:parts per million
    Resolution:1
    F
    Fluorine concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:148
    Maximum:3438
    Units:parts per million
    Resolution:1
    Hf
    Hafnium concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:0.4
    Maximum:15.2
    Units:parts per million
    Resolution:0.1
    Hg
    Mercury concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:0.004
    Maximum:1.020
    Units:parts per million
    Resolution:0.001
    In
    Indium concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:0.02
    Maximum:0.68
    Units:parts per million
    Resolution:0.01
    Li
    Lithium concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:1.3
    Maximum:402.7
    Units:parts per million
    Resolution:0.1
    Mo
    Molybdenum concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:138
    Maximum:631
    Units:parts per million
    Resolution:1
    Nb
    Niobium concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:2.1
    Maximum:124.5
    Units:parts per million
    Resolution:0.1
    Ni
    Nickel concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:1571
    Maximum:7554
    Units:parts per million
    Resolution:1
    Pb
    Lead concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:21
    Maximum:1546
    Units:parts per million
    Resolution:1
    Rb
    Rubidium concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:2.3
    Maximum:41.2
    Units:parts per million
    Resolution:0.1
    Sb
    Antimony concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:30
    Maximum:89
    Units:parts per million
    Resolution:1
    Sc
    Scandium concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:2.0
    Maximum:18.3
    Units:parts per million
    Resolution:0.1
    Se
    Selenium concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:0.3
    Maximum:6.7
    Units:parts per million
    Resolution:0.1
    Sn
    Tin concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:0.9
    Maximum:55.9
    Units:parts per million
    Resolution:0.1
    Sr
    Strontium concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:702
    Maximum:1741
    Units:parts per million
    Resolution:1
    Ta
    Tantalum concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:0.04
    Maximum:4.18
    Units:parts per million
    Resolution:0.01
    Te
    Tellurium concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:1.1
    Maximum:158.2
    Units:parts per million
    Resolution:0.1
    Th
    Thorium concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:0.2
    Maximum:16.7
    Units:parts per million
    Resolution:0.1
    Tl
    Thallium concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:45
    Maximum:292
    Units:parts per million
    Resolution:1
    U
    Uranium concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:2.8
    Maximum:15.3
    Units:parts per million
    Resolution:0.1
    V
    Vanadium concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:168
    Maximum:862
    Units:parts per million
    Resolution:1
    W
    Tungsten concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:24
    Maximum:112
    Units:parts per million
    Resolution:1
    Zn
    Zinc concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:395
    Maximum:1223
    Units:parts per million
    Resolution:1
    Zr
    Zirconium concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:19
    Maximum:906
    Units:parts per million
    Resolution:1
    La
    Lanthanum concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:11.9
    Maximum:338.1
    Units:parts per million
    Resolution:0.1
    Ce
    Cerium concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:8.0
    Maximum:1302.4
    Units:parts per million
    Resolution:0.1
    Pr
    Praseodymium concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:2.0
    Maximum:63.5
    Units:parts per million
    Resolution:0.1
    Nd
    Neodyium concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:9.4
    Maximum:269.4
    Units:parts per million
    Resolution:0.1
    Sm
    Samarium concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:2.0
    Maximum:56.1
    Units:parts per million
    Resolution:0.1
    Eu
    Europium concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:0.57
    Maximum:13.67
    Units:parts per million
    Resolution:0.01
    Gd
    Gadolinium concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:2.8
    Maximum:62.2
    Units:parts per million
    Resolution:0.1
    Tb
    Terbium concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:0.41
    Maximum:9.39
    Units:parts per million
    Resolution:0.01
    Dy
    Dysprosium concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:2.9
    Maximum:58.0
    Units:parts per million
    Resolution:0.1
    Y
    Yttrium content in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:18.4
    Maximum:300.0
    Units:parts per million
    Resolution:0.1
    Ho
    Holmium concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:0.71
    Maximum:12.31
    Units:parts per million
    Resolution:0.01
    Er
    Erbium concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:1.9
    Maximum:35.3
    Units:parts per million
    Resolution:0.1
    Tm
    Thulium concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:0.28
    Maximum:5.01
    Units:parts per million
    Resolution:0.01
    Yb
    Ytterbium concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:1.8
    Maximum:32.0
    Units:parts per million
    Resolution:0.1
    Lu
    Lutetium concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:0.31
    Maximum:5.11
    Units:parts per million
    Resolution:0.01
    SUM_REY
    Summation of the concentration of rare earth elements (La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu) plus Y in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:63
    Maximum:2375
    Units:parts per million
    Resolution:1
    Percent_HREY
    Percentage of the heavy rare earth elements calculated by taking the sum of heavy rare earth elements (Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu) and Y and dividing by the total_REY for each sample. (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:15.5
    Maximum:47.5
    Units:percent
    Resolution:0.1
    Au
    Gold concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:0.017
    Maximum:0.101
    Units:parts per million
    Resolution:0.001
    Ir
    Iridium concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:0.006
    Maximum:0.012
    Units:parts per million
    Resolution:0.001
    Os
    Osmium concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:0.002
    Maximum:0.008
    Units:parts per million
    Resolution:0.001
    Pd
    Palladium concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:0.003
    Maximum:0.009
    Units:parts per million
    Resolution:0.001
    Pt
    Platinum concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:0.109
    Maximum:0.800
    Units:parts per million
    Resolution:0.001
    Rh
    Rhenium concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:0.010
    Maximum:0.040
    Units:parts per million
    Resolution:0.001
    Ru
    Ruthenium concentration in each sample (Source: standard reporting value in geochemistry)
    Range of values
    Minimum:0.010
    Maximum:0.032
    Units:parts per million
    Resolution:0.001
    Fe_Detection
    The detection limit for iron concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Mn_Detection
    The detection limit for manganese concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Si_Detection
    The detection limit for silicon concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Al_Detection
    The detection limit for aluminum concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Mg_Detection
    The detection limit for magnesium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Ca_Detection
    The detection limit for calcium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Na_Detection
    The detection limit for sodium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    K_Detection
    The detection limit for potassium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Ti_Detection
    The detection limit for titanium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    P_Detection
    The detection limit for phosphorus concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    S_Detection
    The detection limit for sulfur concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    CO2_Detection
    The detection limit for carbon dioxide concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    LOI_Detection
    The detection limit for loss on ignition based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    H2OM_Detection
    The detection limit for H2O-, or sorbed water, concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    H2OP_Detection
    The detection limit for H2O+, or structural water, concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Ag_Detection
    The detection limit for silver concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    As_Detection
    The detection limit for aresenic concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Ba_Detection
    The detection limit for barium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Be_Detection
    The detection limit for beryllium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Bi_Detection
    The detection limit for bismuth concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Cd_Detection
    The detection limit for cadmium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Cl_Detection
    The detection limit for chlorine concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Co_Detection
    The detection limit for cobalt concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Cr_Detection
    The detection limit for chromium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Cu_Detection
    The detection limit for copper concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    F_Detection
    The detection limit for fluorine concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Hf_Detection
    The detection limit for hafnium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Hg_Detection
    The detection limit for mercury concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    In_Detection
    The detection limit for indium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Li_Detection
    The detection limit for lithium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Mo_Detection
    The detection limit for molybdenum concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Nb_Detection
    The detection limit for niobium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Ni_Detection
    The detection limit for nickel concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Pb_Detection
    The detection limit for lead concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Rb_Detection
    The detection limit for rubidium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Sb_Detection
    The detection limit for antimony concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Sc_Detection
    The detection limit for scandium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Se_Detection
    The detection limit for selenium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Sn_Detection
    The detection limit for tin concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Sr_Detection
    The detection limit for strontium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Ta_Detection
    The detection limit for tantalum concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Te_Detection
    The detection limit for tellurium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Th_Detection
    The detection limit for thorium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Tl_Detection
    The detection limit for thallium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    U_Detection
    The detection limit for uranium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    V_Detection
    The detection limit for vanadium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    W_Detection
    The detection limit for tungsten concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Zn_Detection
    The detection limit for zinc concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Zr_Detection
    The detection limit for zirconium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    La_Detection
    The detection limit for lanthanum concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Ce_Detection
    The detection limit for cerium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Pr_Detection
    The detection limit for praseodymium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Nd_Detection
    The detection limit for neodymium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Sm_Detection
    The detection limit for samarium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Eu_Detection
    The detection limit for europium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Gd_Detection
    The detection limit for gadolinium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Tb_Detection
    The detection limit for terbium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Dy_Detection
    The detection limit for dysprosium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Y_Detection
    The detection limit for yttrium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Ho_Detection
    The detection limit for holmium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Er_Detection
    The detection limit for erbium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Tm_Detection
    The detection limit for thulium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Yb_Detection
    The detection limit for ytterbium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Lu_Detection
    The detection limit for lutetium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Au_Detection
    The detection limit for gold concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Ir_Detection
    The detection limit for iridium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Os_Detection
    The detection limit for osmium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Pd_Detection
    The detection limit for palladium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Pt_Detection
    The detection limit for platinum concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Rh_Detection
    The detection limit for rhodium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Ru_Detection
    The detection limit for ruthenium concentration based on the measurement method and instrumentation (Source: Producer defined) Numerical value provided by the analyzer in parts per million
    Fe_method
    An alphanumeric code that denotes the method and instrumentation used to measure iron concentration (Source: Producer defined)
    ValueDefinition
    XRF_BF_1X-Ray Fluorescence (XRF) on borate fused disks by SGS Minerals analytical labs
    Mn_method
    An alphanumeric code that denotes the method and instrumentation used to measure manganese concentration (Source: Producer defined)
    ValueDefinition
    XRF_BF_1X-Ray Fluorescence (XRF) on borate fused disks by SGS Minerals analytical labs
    Si_method
    An alphanumeric code that denotes the method and instrumentation used to measure silicon concentration (Source: Producer defined)
    ValueDefinition
    XRF_BF_1X-Ray Fluorescence (XRF) on borate fused disks by SGS Minerals analytical labs
    Al_method
    An alphanumeric code that denotes the method and instrumentation used to measure aluminum concentration (Source: Producer defined)
    ValueDefinition
    XRF_BF_1X-Ray Fluorescence (XRF) on borate fused disks by SGS Minerals analytical labs
    Mg_method
    An alphanumeric code that denotes the method and instrumentation used to measure magnesium concentration (Source: Producer defined)
    ValueDefinition
    XRF_BF_1X-Ray Fluorescence (XRF) on borate fused disks by SGS Minerals analytical labs
    Ca_method
    An alphanumeric code that denotes the method and instrumentation used to measure calcium concentration (Source: Producer defined)
    ValueDefinition
    XRF_BF_1X-Ray Fluorescence (XRF) on borate fused disks by SGS Minerals analytical labs
    Na_method
    An alphanumeric code that denotes the method and instrumentation used to measure sodium concentration (Source: Producer defined)
    ValueDefinition
    XRF_BF_1X-Ray Fluorescence (XRF) on borate fused disks by SGS Minerals analytical labs
    K_method
    An alphanumeric code that denotes the method and instrumentation used to measure potassium concentration (Source: Producer defined)
    ValueDefinition
    XRF_BF_1X-Ray Fluorescence (XRF) on borate fused disks by SGS Minerals analytical labs
    Ti_method
    An alphanumeric code that denotes the method and instrumentation used to measure titanium concentration (Source: Producer defined)
    ValueDefinition
    XRF_BF_1X-Ray Fluorescence (XRF) on borate fused disks by SGS Minerals analytical labs
    P_method
    An alphanumeric code that denotes the method and instrumentation used to measure phosphorus concentration (Source: Producer defined)
    ValueDefinition
    XRF_BF_1X-Ray Fluorescence (XRF) on borate fused disks by SGS Minerals analytical labs
    S_method
    An alphanumeric code that denotes the method and instrumentation used to measure sulfur concentration (Source: Producer defined)
    ValueDefinition
    ICP_AES_4ACIDInductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES) following a four-acid digest of hydrochloric, hydrofluoric, nitric, perchloric acids by SGS Minerals analytical labs
    CO2_method
    An alphanumeric code that denotes the method and instrumentation used to measure carbon dioxide concentration (Source: Producer defined)
    ValueDefinition
    coulometrycoulometry by SGS Minerals analytical labs
    LOI_method
    An alphanumeric code that denotes the method and instrumentation used to measure loss on ignition (Source: Producer defined)
    ValueDefinition
    XRF_BF_1X-Ray Fluorescence (XRF) on borate fused disks by SGS Minerals analytical labs
    H2OM_method
    An alphanumeric code that denotes the method and instrumentation used to measure H2O-, or sorbed water, concentration (Source: Producer defined)
    ValueDefinition
    gravimetricgravimetric analysis by SGS Minerals analytical labs
    H2OP_method
    An alphanumeric code that denotes the method and instrumentation used to measure H2O+, or structural water, concentration (Source: Producer defined)
    ValueDefinition
    penfield_infraredpenfield-infrared analysis by SGS Minerals analytical labs
    Ag_method
    An alphanumeric code that denotes the method and instrumentation used to measure silver concentration (Source: Producer defined)
    ValueDefinition
    ICP_MS_4ACIDInductively Coupled Plasma Mass Spectrometry (ICP-MS) following a four-acid digest of hydrochloric, hydrofluoric, nitric, perchloric acids by SGS Minerals analytical labs
    As_method
    An alphanumeric code that denotes the method and instrumentation used to measure aresenic concentration (Source: Producer defined)
    ValueDefinition
    ICP_MS_4ACIDInductively Coupled Plasma Mass Spectrometry (ICP-MS) following a four-acid digest of hydrochloric, hydrofluoric, nitric, perchloric acids by SGS Minerals analytical labs
    Ba_method
    An alphanumeric code that denotes the method and instrumentation used to measure barium concentration (Source: Producer defined)
    ValueDefinition
    ICP_AES_4ACIDInductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES) following a four-acid digest of hydrochloric, hydrofluoric, nitric, perchloric acids by SGS Minerals analytical labs
    Be_method
    An alphanumeric code that denotes the method and instrumentation used to measure beryllium concentration (Source: Producer defined)
    ValueDefinition
    ICP_MS_4ACIDInductively Coupled Plasma Mass Spectrometry (ICP-MS) following a four-acid digest of hydrochloric, hydrofluoric, nitric, perchloric acids by SGS Minerals analytical labs
    Bi_method
    An alphanumeric code that denotes the method and instrumentation used to measure bismuth concentration (Source: Producer defined)
    ValueDefinition
    ICP_MS_4ACIDInductively Coupled Plasma Mass Spectrometry (ICP-MS) following a four-acid digest of hydrochloric, hydrofluoric, nitric, perchloric acids by SGS Minerals analytical labs
    Cd_method
    An alphanumeric code that denotes the method and instrumentation used to measure cadmium concentration (Source: Producer defined)
    ValueDefinition
    ICP_MS_4ACIDInductively Coupled Plasma Mass Spectrometry (ICP-MS) following a four-acid digest of hydrochloric, hydrofluoric, nitric, perchloric acids by SGS Minerals analytical labs
    Cl_method
    An alphanumeric code that denotes the method and instrumentation used to measure chlorine concentration (Source: Producer defined)
    ValueDefinition
    ion-selective electrodeion-selective electrode by SGS Minerals analytical labs
    Co_method
    An alphanumeric code that denotes the method and instrumentation used to measure cobalt concentration (Source: Producer defined)
    ValueDefinition
    ICP_MS_HNO3_LiMBInductively Coupled Plasma Mass Spectrometry (ICP-MS) using lithium-metaborate fused disks by SGS Minerals analytical labs
    Cr_method
    An alphanumeric code that denotes the method and instrumentation used to measure choromium concentration (Source: Producer defined)
    ValueDefinition
    ICP_AES_4ACIDInductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES) following a four-acid digest of hydrochloric, hydrofluoric, nitric, perchloric acids by SGS Minerals analytical labs
    Cu_method
    An alphanumeric code that denotes the method and instrumentation used to measure copper concentration (Source: Producer defined)
    ValueDefinition
    ICP_AES_4ACIDInductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES) following a four-acid digest of hydrochloric, hydrofluoric, nitric, perchloric acids by SGS Minerals analytical labs
    F_method
    An alphanumeric code that denotes the method and instrumentation used to measure fluorine concentration (Source: Producer defined)
    ValueDefinition
    ion-selective electrodeion-selective electrode by SGS Minerals analytical labs
    Hf_method
    An alphanumeric code that denotes the method and instrumentation used to measure hafnium concentration (Source: Producer defined)
    ValueDefinition
    ICP_MS_4ACIDInductively Coupled Plasma Mass Spectrometry (ICP-MS) following a four-acid digest of hydrochloric, hydrofluoric, nitric, perchloric acids by SGS Minerals analytical labs
    Hg_method
    An alphanumeric code that denotes the method and instrumentation used to measure mercury concentration (Source: Producer defined)
    ValueDefinition
    CVAAcold vapor atomic absorption spectroscopy (CVAA) by SGS Minerals analytical labs
    In_method
    An alphanumeric code that denotes the method and instrumentation used to measure indium concentration (Source: Producer defined)
    ValueDefinition
    ICP_MS_4ACIDInductively Coupled Plasma Mass Spectrometry (ICP-MS) following a four-acid digest of hydrochloric, hydrofluoric, nitric, perchloric acids by SGS Minerals analytical labs
    Li_method
    An alphanumeric code that denotes the method and instrumentation used to measure lithium concentration based on the measurement method and instrumentation (Source: Producer defined)
    ValueDefinition
    ICP_AES_4ACIDInductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES) following a four-acid digest of hydrochloric, hydrofluoric, nitric, perchloric acids by SGS Minerals analytical labs
    Mo_method
    An alphanumeric code that denotes the method and instrumentation used to measure molybdenum concentration (Source: Producer defined)
    ValueDefinition
    ICP_MS_HNO3_LiMBInductively Coupled Plasma Mass Spectrometry (ICP-MS) using lithium-metaborate fused disks by SGS Minerals analytical labs
    Nb_method
    An alphanumeric code that denotes the method and instrumentation used to measure niobium concentration (Source: Producer defined)
    ValueDefinition
    ICP_MS_HNO3_LiMBInductively Coupled Plasma Mass Spectrometry (ICP-MS) using lithium-metaborate fused disks by SGS Minerals analytical labs
    Ni_method
    An alphanumeric code that denotes the method and instrumentation used to measure nickel concentration (Source: Producer defined)
    ValueDefinition
    ICP_MS_HNO3_LiMBInductively Coupled Plasma Mass Spectrometry (ICP-MS) using lithium-metaborate fused disks by SGS Minerals analytical labs
    Pb_method
    An alphanumeric code that denotes the method and instrumentation used to measure lead concentration (Source: Producer defined)
    ValueDefinition
    ICP_MS_4ACIDInductively Coupled Plasma Mass Spectrometry (ICP-MS) following a four-acid digest of hydrochloric, hydrofluoric, nitric, perchloric acids by SGS Minerals analytical labs
    Rb_method
    An alphanumeric code that denotes the method and instrumentation used to measure rubidium concentration (Source: Producer defined)
    ValueDefinition
    ICP_MS_HNO3_LiMBInductively Coupled Plasma Mass Spectrometry (ICP-MS) using lithium-metaborate fused disks by SGS Minerals analytical labs
    Sb_method
    An alphanumeric code that denotes the method and instrumentation used to measure antimony concentration (Source: Producer defined)
    ValueDefinition
    ICP_MS_4ACIDInductively Coupled Plasma Mass Spectrometry (ICP-MS) following a four-acid digest of hydrochloric, hydrofluoric, nitric, perchloric acids by SGS Minerals analytical labs
    Sc_method
    An alphanumeric code that denotes the method and instrumentation used to measure scandium concentration (Source: Producer defined)
    ValueDefinition
    ICP_MS_4ACIDInductively Coupled Plasma Mass Spectrometry (ICP-MS) following a four-acid digest of hydrochloric, hydrofluoric, nitric, perchloric acids by SGS Minerals analytical labs
    Se_method
    An alphanumeric code that denotes the method and instrumentation used to measure selenium concentration (Source: Producer defined)
    ValueDefinition
    ICP_MS_4ACIDInductively Coupled Plasma Mass Spectrometry (ICP-MS) following a four-acid digest of hydrochloric, hydrofluoric, nitric, perchloric acids by SGS Minerals analytical labs
    Sn_method
    An alphanumeric code that denotes the method and instrumentation used to measure tin concentration (Source: Producer defined)
    ValueDefinition
    ICP_MS_4ACIDInductively Coupled Plasma Mass Spectrometry (ICP-MS) following a four-acid digest of hydrochloric, hydrofluoric, nitric, perchloric acids by SGS Minerals analytical labs
    Sr_method
    An alphanumeric code that denotes the method and instrumentation used to measure strontium concentration (Source: Producer defined)
    ValueDefinition
    ICP_AES_4ACIDInductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES) following a four-acid digest of hydrochloric, hydrofluoric, nitric, perchloric acids by SGS Minerals analytical labs
    Ta_method
    An alphanumeric code that denotes the method and instrumentation used to measure tantalum concentration (Source: Producer defined)
    ValueDefinition
    ICP_MS_4ACIDInductively Coupled Plasma Mass Spectrometry (ICP-MS) following a four-acid digest of hydrochloric, hydrofluoric, nitric, perchloric acids by SGS Minerals analytical labs
    Te_method
    An alphanumeric code that denotes the method and instrumentation used to measure tellurium concentration (Source: Producer defined)
    ValueDefinition
    AAS_hydride_generationhydride generation and graphite furnace Atomic-Absorption Spectrometry (AAS) by SGS Minerals analytical labs
    Th_method
    An alphanumeric code that denotes the method and instrumentation used to measure thorium concentration (Source: Producer defined)
    ValueDefinition
    ICP_MS_4ACIDInductively Coupled Plasma Mass Spectrometry (ICP-MS) following a four-acid digest of hydrochloric, hydrofluoric, nitric, perchloric acids by SGS Minerals analytical labs
    Tl_method
    An alphanumeric code that denotes the method and instrumentation used to measure thallium concentration (Source: Producer defined)
    ValueDefinition
    ICP_MS_4ACIDInductively Coupled Plasma Mass Spectrometry (ICP-MS) following a four-acid digest of hydrochloric, hydrofluoric, nitric, perchloric acids by SGS Minerals analytical labs
    U_method
    An alphanumeric code that denotes the method and instrumentation used to measure uranium concentration (Source: Producer defined)
    ValueDefinition
    ICP_MS_HNO3_LiMBInductively Coupled Plasma Mass Spectrometry (ICP-MS) using lithium-metaborate fused disks by SGS Minerals analytical labs
    V_method
    An alphanumeric code that denotes the method and instrumentation used to measure vanadium concentration (Source: Producer defined)
    ValueDefinition
    ICP_MS_HNO3_LiMBInductively Coupled Plasma Mass Spectrometry (ICP-MS) using lithium-metaborate fused disks by SGS Minerals analytical labs
    W_method
    An alphanumeric code that denotes the method and instrumentation used to measure tungsten concentration (Source: Producer defined)
    ValueDefinition
    ICP_MS_HNO3_LiMBInductively Coupled Plasma Mass Spectrometry (ICP-MS) using lithium-metaborate fused disks by SGS Minerals analytical labs
    Zn_method
    An alphanumeric code that denotes the method and instrumentation used to measure zinc concentration (Source: Producer defined)
    ValueDefinition
    ICP_AES_4ACIDInductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES) following a four-acid digest of hydrochloric, hydrofluoric, nitric, perchloric acids by SGS Minerals analytical labs
    Zr_method
    An alphanumeric code that denotes the method and instrumentation used to measure zirconium concentration (Source: Producer defined)
    ValueDefinition
    ICP_MS_HNO3_LiMBInductively Coupled Plasma Mass Spectrometry (ICP-MS) using lithium-metaborate fused disks by SGS Minerals analytical labs
    La_method
    An alphanumeric code that denotes the method and instrumentation used to measure lanthanum concentration (Source: Producer defined)
    ValueDefinition
    ICP_MS_HNO3_LiMBInductively Coupled Plasma Mass Spectrometry (ICP-MS) using lithium-metaborate fused disks by SGS Minerals analytical labs
    Ce_method
    An alphanumeric code that denotes the method and instrumentation used to measure cerium concentration (Source: Producer defined)
    ValueDefinition
    ICP_MS_HNO3_LiMBInductively Coupled Plasma Mass Spectrometry (ICP-MS) using lithium-metaborate fused disks by SGS Minerals analytical labs
    Pr_method
    An alphanumeric code that denotes the method and instrumentation used to measure praseodymium concentration (Source: Producer defined)
    ValueDefinition
    ICP_MS_HNO3_LiMBInductively Coupled Plasma Mass Spectrometry (ICP-MS) using lithium-metaborate fused disks by SGS Minerals analytical labs
    Nd_method
    An alphanumeric code that denotes the method and instrumentation used to measure neodymium concentration (Source: Producer defined)
    ValueDefinition
    ICP_MS_HNO3_LiMBInductively Coupled Plasma Mass Spectrometry (ICP-MS) using lithium-metaborate fused disks by SGS Minerals analytical labs
    Sm_method
    TAn alphanumeric code that denotes the method and instrumentation used to measure samarium concentration (Source: Producer defined)
    ValueDefinition
    ICP_MS_HNO3_LiMBInductively Coupled Plasma Mass Spectrometry (ICP-MS) using lithium-metaborate fused disks by SGS Minerals analytical labs
    Eu_method
    An alphanumeric code that denotes the method and instrumentation used to measure europium concentration (Source: Producer defined)
    ValueDefinition
    ICP_MS_HNO3_LiMBInductively Coupled Plasma Mass Spectrometry (ICP-MS) using lithium-metaborate fused disks by SGS Minerals analytical labs
    Gd_method
    An alphanumeric code that denotes the method and instrumentation used to measure gadolinium concentration (Source: Producer defined)
    ValueDefinition
    ICP_MS_HNO3_LiMBInductively Coupled Plasma Mass Spectrometry (ICP-MS) using lithium-metaborate fused disks by SGS Minerals analytical labs
    Tb_method
    An alphanumeric code that denotes the method and instrumentation used to measure terbium concentration (Source: Producer defined)
    ValueDefinition
    ICP_MS_HNO3_LiMBInductively Coupled Plasma Mass Spectrometry (ICP-MS) using lithium-metaborate fused disks by SGS Minerals analytical labs
    Dy_method
    An alphanumeric code that denotes the method and instrumentation used to measure dysprosium concentration (Source: Producer defined)
    ValueDefinition
    ICP_MS_HNO3_LiMBInductively Coupled Plasma Mass Spectrometry (ICP-MS) using lithium-metaborate fused disks by SGS Minerals analytical labs
    Y_method
    An alphanumeric code that denotes the method and instrumentation used to measure yttrium concentration (Source: Producer defined)
    ValueDefinition
    ICP_MS_HNO3_LiMBInductively Coupled Plasma Mass Spectrometry (ICP-MS) using lithium-metaborate fused disks by SGS Minerals analytical labs
    Ho_method
    An alphanumeric code that denotes the method and instrumentation used to measure holmium concentration (Source: Producer defined)
    ValueDefinition
    ICP_MS_HNO3_LiMBInductively Coupled Plasma Mass Spectrometry (ICP-MS) using lithium-metaborate fused disks by SGS Minerals analytical labs
    Er_method
    An alphanumeric code that denotes the method and instrumentation used to measure erbium concentration (Source: Producer defined)
    ValueDefinition
    ICP_MS_HNO3_LiMBInductively Coupled Plasma Mass Spectrometry (ICP-MS) using lithium-metaborate fused disks by SGS Minerals analytical labs
    Tm_method
    An alphanumeric code that denotes the method and instrumentation used to measure thulium concentration (Source: Producer defined)
    ValueDefinition
    ICP_MS_HNO3_LiMBInductively Coupled Plasma Mass Spectrometry (ICP-MS) using lithium-metaborate fused disks by SGS Minerals analytical labs
    Yb_method
    An alphanumeric code that denotes the method and instrumentation used to measure ytterbium concentration (Source: Producer defined)
    ValueDefinition
    ICP_MS_HNO3_LiMBInductively Coupled Plasma Mass Spectrometry (ICP-MS) using lithium-metaborate fused disks by SGS Minerals analytical labs
    Lu_method
    An alphanumeric code that denotes the method and instrumentation used to measure lutetium concentration (Source: Producer defined)
    ValueDefinition
    ICP_MS_HNO3_LiMBInductively Coupled Plasma Mass Spectrometry (ICP-MS) using lithium-metaborate fused disks by SGS Minerals analytical labs
    Au_method
    An alphanumeric code that denotes the method and instrumentation used to measure gold concentration (Source: Producer defined)
    ValueDefinition
    ICP_MS_NiS_fire_assayfire assay nickel sulfide collection and Inductively Coupled Plasma Mass Spectrometry (ICP-MS) by Intertek analytical labs
    Ir_method
    An alphanumeric code that denotes the method and instrumentation used to measure iridium concentration (Source: Producer defined)
    ValueDefinition
    ICP_MS_NiS_fire_assayfire assay nickel sulfide collection and Inductively Coupled Plasma Mass Spectrometry (ICP-MS) by Intertek analytical labs
    Os_method
    An alphanumeric code that denotes the method and instrumentation used to measure osmium concentration (Source: Producer defined)
    ValueDefinition
    ICP_MS_NiS_fire_assayfire assay nickel sulfide collection and Inductively Coupled Plasma Mass Spectrometry (ICP-MS) by Intertek analytical labs
    Pd_method
    An alphanumeric code that denotes the method and instrumentation used to measure palladium concentration (Source: Producer defined)
    ValueDefinition
    ICP_MS_NiS_fire_assayfire assay nickel sulfide collection and Inductively Coupled Plasma Mass Spectrometry (ICP-MS) by Intertek analytical labs
    Pt_method
    An alphanumeric code that denotes the method and instrumentation used to measure platinum concentration (Source: Producer defined)
    ValueDefinition
    ICP_MS_NiS_fire_assayfire assay nickel sulfide collection and Inductively Coupled Plasma Mass Spectrometry (ICP-MS) by Intertek analytical labs
    Rh_method
    An alphanumeric code that denotes the method and instrumentation used to measure rhodium concentration (Source: Producer defined)
    ValueDefinition
    ICP_MS_NiS_fire_assayfire assay nickel sulfide collection and Inductively Coupled Plasma Mass Spectrometry (ICP-MS) by Intertek analytical labs
    Ru_method
    An alphanumeric code that denotes the method and instrumentation used to measure ruthenium concentration (Source: Producer defined)
    ValueDefinition
    ICP_MS_NiS_fire_assayfire assay nickel sulfide collection and Inductively Coupled Plasma Mass Spectrometry (ICP-MS) by Intertek analytical labs
    Entity_and_Attribute_Overview: The first line of the csv file is a header line.
    Entity_and_Attribute_Detail_Citation: U.S. Geological Survey

Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
    • Kira Mizell
  2. Who also contributed to the data set?
  3. To whom should users address questions about the data?
    U.S. Geological Survey, Pacific Coastal and Marine Science Center
    Attn: PCMSC Science Data Coordinator
    2885 Mission Street
    Santa Cruz, CA

    831-427-4747 (voice)
    pcmsc_data@usgs.gov

Why was the data set created?

These data serve to expand the knowledge and statistics for deep ocean marine mineral occurrences and composition within the global ocean.

How was the data set created?

  1. From what previous works were the data drawn?
    geochemistry (source 1 of 2)
    Laboratory, SGS Minerals, 2017, Geochemical Element Analysis.

    Online Links:

    Type_of_Source_Media: geochemical analyses
    Source_Contribution:
    Fe, Mn, Si, Al, Ca, Mg, K, Na, P, Ti, and LOI were determined by X-Ray Fluorescence (XRF) on borate fused disks; Co, Mo, Nb, Ni, Rb, U, V, W, Zr, and Rare Earth Elements (La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu) and Y (REY) were determined by Inductively Coupled Plasma Mass Spectrometry (ICP-MS) using lithium-metaborate fused disks; Ag, As, Be, Bi, Cd, Cs, Hf, In, Pb, Sb, Sc, Se, Sn, Ta, Th, Tl were determined by ICP-MS and Ba, Cr, Cu, Li, S, Sr and Zn by Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES) following a four-acid digest (hydrochloric, hydrofluoric, nitric, perchloric acids); Te was determined by hydride generation and graphite furnace Atomic-Absorption Spectrometry (AAS); Hg by cold vapor atomic absorption spectroscopy (CVAA); H2O- by gravimetric analysis, H2O+ by penfield-infrared; Cl and F by ion-selective electrode; carbon dioxide by coulometry.
    PGE data (source 2 of 2)
    Intertek, 2017, Platinum Group Element Analysis.

    Online Links:

    Type_of_Source_Media: geochemical analyses
    Source_Contribution:
    Platinum group elements (PGE; Au, Ir, Os, Pd, Pt, Rh, Ru) were determined by fire assay nickel sulfide collection and Inductively Coupled Plasma Mass Spectrometry (ICP-MS)
  2. How were the data generated, processed, and modified?
    Date: 26-Sep-2016 (process 1 of 4)
    USGS scientists requested these ferromanganese crust samples from the Oregon State University Marine and Geology Repository where they had been archived. Ferromanganese crust samples were sent to USGS for subsampling and major and trace element geochemical analyses.
    Date: 01-May-2017 (process 2 of 4)
    At USGS, bulk portions or individual layers were sampled from the ferromanganese crusts using a ceramic knife and then ground using an agate mortar and pestle to approximately 75 micrometers. Powdered samples were then sent by USGS to commercial analytical labs, SGS and Intertek. See Source Citations for information on geochemical techniques.
    Date: 01-Nov-2018 (process 3 of 4)
    Total rare earth elements plus yttrium (Total_REY) were calculated by summing the concentration of rare earth elements (La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu) plus Y in each sample. Percentage of the heavy rare earth elements was calculated by taking the sum of heavy rare earth elements (Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu) and Y and dividing the sum by the Total_REY value for each sample. Data sources used in this process:
    • geochemistry
    Date: 01-Aug-2019 (process 4 of 4)
    Results from the lab analyses, detection limits, analytical method information, location data, and sample information were combined into a comma-delimited text values document (Tuvalu_RR1310_FeMn_geochem_data.csv). Data sources used in this process:
    • geochemistry
  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 geochemistry data were calibrated against certified reference materials. The instruments and techniques used to generate the geochemical data are included in the data table and also summarized below in the Source Citations since data were generated by commercial laboratories. Limits for each analyte's detection by an instrument are reported in the table. The value -8888 indicates that the measurement for an analyte was below the detection limit and the value -7777 indicates that the measurement for an analyte was above the detection limit. Values of -9999 indicate that no analysis was performed.
  2. How accurate are the geographic locations?
    A formal accuracy assessment of the horizontal positional information in the dataset has not been conducted. The horizontal accuracy was determined with the ship's GPS navigation, which is accurate to less than 5 m.
  3. How accurate are the heights or depths?
    The singular value for water depth for each sample was calculated from shipboard dredge log records to account for ship-based depth soundings, the length of dredge wire out, movement by the ship, approximate seamount slope, and multiple bites of the dredge along each dredge track in order to maximize location accuracy. A formal accuracy assessment of the vertical positional information in the dataset has not been conducted.
  4. Where are the gaps in the data? What is missing?
    Dataset is considered complete for the information presented, as described in the abstract. Many samples do not have chemistry data because analyses were performed on representative samples only. Users are advised to read the rest of the metadata record carefully for additional details.
  5. How consistent are the relationships among the observations, including topology?
    No formal logical accuracy tests were conducted.

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 USGS-authored or produced data and information are in the public domain from the U.S. Government and are freely redistributable with proper metadata and source attribution. Please recognize and acknowledge the U.S. Geological Survey as the originator of the dataset and in products derived from these data.
  1. Who distributes the data set? (Distributor 1 of 1)
    U.S. Geological Survey, Pacific Coastal and Marine Science Center
    Attn: PCMSC Science Data Coordinator
    2885 Mission Street
    Santa Cruz, CA

    831-427-4747 (voice)
    pcmsc_data@usgs.gov
  2. What's the catalog number I need to order this data set? These data are available in .csv format contained in a single file.
  3. What legal disclaimers am I supposed to read?
    Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty.
  4. How can I download or order the data?
  5. What hardware or software do I need in order to use the data set?
    These data can be viewed with Microsoft Excel or any text reader.

Who wrote the metadata?

Dates:
Last modified: 25-Jan-2023
Metadata author:
U.S. Geological Survey, Pacific Coastal and Marine Science Center
Attn: PCMSC Science Data Coordinator
2885 Mission Street
Santa Cruz, CA

831-427-4747 (voice)
pcmsc_data@usgs.gov
Metadata standard:
Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)

This page is <https://cmgds.marine.usgs.gov/catalog/pcmsc/DataReleases/ScienceBase/DR_P95CIHSU/Tuvalu_RR1310_FeMn_geochem_metadata.faq.html>
Generated by mp version 2.9.51 on Thu Jan 26 17:28:07 2023