Chemical Composition of Samples Collected from Waste Rock Dumps and Other Mining-Related Features at Selected Phosphate Mines in Southeastern Idaho, Western Wyoming, and Northern Utah

Online link https://geo-nsdi.er.usgs.gov/metadata/open-file/01-411/metadata.faq.html
Description This text file contains chemical analyses for 31 samples collected from various phosphate mine sites in southeastern Idaho (25), northern Utah (2), and western Wyoming (4).
Originators Moyle, Phillip R. and Causey, J. Douglas

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Overview of attributes

The columns and their definitions are listed below.  All values
that were less than (<) were converted to minus (-).  Samples
were processed by several methods.  As a result, there was
duplication of analyses for some elements.
Rock samples were air dried followed by disaggregation in a
mechanical jaw crusher. A split was ground to <100 mesh (0.15 mm)
in a ceramic plate grinder. A riffle splitter was used to obtain
splits to ensure similarity with the whole sample. One set of
splits for all samples was archived, and approximately 50-g
splits of ground material was shipped to the contract laboratory
for analysis.
Forty major, minor, and trace elements were determined for all 31
samples by inductively coupled plasma-atomic emission
spectrometry (ICP-AES), also referred to as the ICP-40 package,
after low-temperature (<150oC) digestion using concentrated
hydrochloric, hydrofluoric, nitric, and perchloric acids (Crock
and others, 1983).
Splits of all samples were also submitted to a contract
laboratory for analysis of 16 major, minor, and trace elements
(Al, Ba, Ca, Cr, Fe, Mg, Mn, Nb, P, K, Si, Na, Sr, Ti, Y, Zr) by
ICP-AES using a lithium metaborate fusion. This technique, also
referred to as the ICP-16 package, was used especially to provide
analysis of silicon (Si) for these siliceous, phosphatic shale
samples. The samples were fused with lithium metaborate in a
graphite crucible. In-house standards, and synthetic standards
were used to calibrate the instrument. Sample solutions were
aspirated into the ICP through a high-solids nebulizer, and metal
concentrations were measured simultaneously. Selenium, arsenic,
and antimony analyses were accomplished using hydride generation
followed by atomic absorption (AA) spectroscopy. Tellurium and
thallium were determined using AA graphite furnace spectroscopy.
Total sulfur and the various forms of carbon were determined
using a LECO furnace followed by gas chromatographic measurement.
Eight samples were also submitted for a 10- element ICP-AES
technique, also referred to as ICP-10, for determination of Ag,
As, Au, Bi, Cd, Cu, Mo, Pb, Sb, and Zn. Hydrochloric acidhydrogen
peroxide were used to solubilize metals not tightly bound in the
silicate lattice of rocks, and metals are extracted as organic
halides. Concentrations of the extracted metals were determined
simultaneously after aspiration into a multichannel ICP
instrument. This procedure is a partial digestion and results may
be biased low when compared to procedures involving complete
dissolution of the sample.
>SEQ_NO     Unique sequence number
>LAB_NO     Laboratory number
>SAMPLE_NO  Field sample number
>DATE_COLL  Date sample collected
>SAMP_TYPE  Type of sample taken
>FEAT_SAMP  Mine feature sampled
>LITHOLOGY  Rock type sampled
>SITE_NAME  Name of mine or property where sample collected
>QUAD_MAP   U.S. Geological Survey 7.5' Topographic map upon which site is located
>COUNTY     County
>STATE      State
>LONGITUDE  Longitude of sample taken with GPS
>LATITUDE   Latitude of sample taken with GPS
>MERIDIAN   Meridian
>TWSP       Township
>RANGE      Range
>SECTION    Section
>PARCEL     Fractional part of section
>As_Hyd_ppm Arsenic in parts per million analyzed by hydride generation-atomic absorption spectrometry
>Hg_CVA_ppm Mercury in parts per million analyzed by cold vapor atomic absorption
>Se_Hyd_ppm Selenium in parts per million analyzed by hydride generation-atomic absorption spectrometry
>Sb_Hyd_ppm Antimony in parts per million analyzed by hydride generation-atomic absorption spectrometry
>Te_Hyd_ppm Tellurium in parts per million analyzed by hydride generation-atomic absorption spectrometry
>Tl_Hyd_ppm Thallium in parts per million analyzed by hydride generation-atomic absorption spectrometry
>C_Tot_pct  Carbon in percent analyzed by combustion in an oxygen atmosphere followed by infrared measurement of evolved CO2
>CO2_Ac_pct Carbon dioxide in percent evolved after acidification
>C_Crbt_pct Carbonate (inorganic) carbon in percent analyzed by coulometric titration after acidification
>S_Tot_pct  Sulfur in percent analyzed by combustion in an oxygen atmosphere followed by infrared measurement of evolved SO2
>Ag_10_ppm  Silver in parts per million analyzed by 10 element method
>As_10_ppm  Arsenic in parts per million analyzed by 10 element method
>Au_10_ppm  Gold in parts per million analyzed by 10 element method
>Bi_10_ppm  Bismuth in parts per million analyzed by 10 element method
>Cd_10_ppm  Cadmium in parts per million analyzed by 10 element method
>Cu_10_ppm  Copper in parts per million analyzed by 10 element method
>Mo_10_ppm  Molybdenum in parts per million analyzed by 10 element method
>Pb_10_ppm  Lead in parts per million analyzed by 10 element method
>Sb_10_ppm  Antimony in parts per million analyzed by 10 element method
>Zn_10_ppm  Zinc in parts per million analyzed by 10 element method
>Al_16_pct  Aluminum in percent analyzed by 16 element method
>Ca_16_pct  Calcium in percent analyzed by 16 element method
>Fe_16_pct  Iron in percent analyzed by 16 element method
>K_16_pct   Potassium in percent analyzed by 16 element method
>Mg_16_pct  Magnesium in percent analyzed by 16 element method
>Na_16_pct  Sodium in percent analyzed by 16 element method
>P_16_pct   Phosphorous in percent analyzed by 16 element method
>Si_16_pct  Silicon in percent analyzed by 16 element method
>Ti_16_pct  Titanium in percent analyzed by 16 element method
>Ba_16_ppm  Barium in parts per million analyzed by 16 element method
>Cr_16_ppm  Chromium in parts per million analyzed by 16 element method
>Mn_16_ppm  Manganese in parts per million analyzed by 16 element method
>Nb_16_ppm  Niobium in parts per million analyzed by 16 element method
>Sr_16_ppm  Strontium in parts per million analyzed by 16 element method
>Y_16_ppm   Yittrium in parts per million analyzed by 16 element method
>Zr_16_ppm  Zirconium in parts per million analyzed by 16 element method
>Al_40_pct  Aluminum in percent analyzed by 40 element method
>Ca_40_PCT  Calcium in percent analyzed by 40 element method
>Fe_40_pct  Iron in percent analyzed by 40 element method
>K_40_pct   Potassium in percent analyzed by 40 element method
>Mg_40_pct  Magnesium in percent analyzed by 40 element method
>Na_40_pct  Sodium in percent analyzed by 40 element method
>P_40_pct   Phosphorous in percent analyzed by 40 element method
>Ti_40_pct  Titanium in percent analyzed by 40 element method
>Ag_40_ppm  Silver in parts per million analyzed by 40 element method
>As_40_ppm  Arsenic in parts per million analyzed by 40 element method
>Au_40_ppm  Gold in parts per million analyzed by 40 element method
>Ba_40_ppm  Barium in parts per million analyzed by 40 element method
>Be_40_ppm  Beryllium in parts per million analyzed by 40 element method
>Bi_40_ppm  Bismuth in parts per million analyzed by 40 element method
>Cd_40_ppm  Cadmium in parts per million analyzed by 40 element method
>Ce_40_ppm  Cerium in parts per million analyzed by 40 element method
>Co_40_ppm  Cobalt in parts per million analyzed by 40 element method
>Cr_40_ppm  Chromium in parts per million analyzed by 40 element method
>Cu_40_ppm  Copper in parts per million analyzed by 40 element method
>Eu_40_ppm  Europium in parts per million analyzed by 40 element method
>Ga_40_ppm  Gallium in parts per million analyzed by 40 element method
>Ho_40_ppm  Holmium in parts per million analyzed by 40 element method
>La_40_ppm  Lanthanium in parts per million analyzed by 40 element method
>Li_40_ppm  Lithium in parts per million analyzed by 40 element method
>Mn_40_ppm  Manganese in parts per million analyzed by 40 element method
>Mo_40_ppm  Molybdenum in parts per million analyzed by 40 element method
>Nb_40_ppm  Niobium in parts per million analyzed by 40 element method
>Nd_40_ppm  Neodymium in parts per million analyzed by 40 element method
>Ni_40_ppm  Nickel in parts per million analyzed by 40 element method
>Pb_40_ppm  Lead in parts per million analyzed by 40 element method
>Sc_40_ppm  Scandium in parts per million analyzed by 40 element method
>Sn_40_ppm  Tin in parts per million analyzed by 40 element method
>Sr_40_ppm  Strontium in parts per million analyzed by 40 element method
>Ta_40_ppm  Tantalum in parts per million analyzed by 40 element method
>Th_40_ppm  Thorium in parts per million analyzed by 40 element method
>U_40_ppm   Uranium in parts per million analyzed by 40 element method
>V_40_ppm   Vanadium in parts per million analyzed by 40 element method
>Y_40_ppm   Yittrium in parts per million analyzed by 40 element method
>Yb_40_ppm  Ytterbium in parts per million analyzed by 40 element method
>Zn_40_ppm  Zirconium in parts per million analyzed by 40 element method

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