Bedrock, soil, and lichen geochemistry from Isle Royale National Park, Michigan

Online link https://geo-nsdi.er.usgs.gov/metadata/open-file/03-276/metadata.faq.html
Description This is a report of geochemical data from various media collected on Isle Royale, a large island in northeastern Lake Superior. Isle Royale became a national park in 1940 and was designated as a wilderness area in 1976. USGS sampling began in 1996 as par
Originators Woodruff, Laurel G.; Cannon, William F.; Dicken, Connie L.; Bennett, James P.; and Nicholson, Suzanne W.
Publication U.S. Geological Survey Open-File Report 03-276

Related topics

A_horizon.xls

Multi-element chemical analyses for A-horizon soil samples. Includes site identification, latitude, longitude, year the sample was collected, and the estimated thickness of the sampled horizon. File gives quantitative results for 28 elements. Additional elements were analyzed but not reported as they were consistently below detection limits for 90% to 100% of samples tested. These eliminated elements and their detection limits in parts per million are: Ag (2), Au (8), Be (1), Bi (10), Cd (2), Eu (2), Ho (4), Mo (2), Nd (2), Sn (5), Ta (40), Th (6), and U (100). Ga is excluded as the relative percent difference between duplicates were typically > 25%.

Label Definition
Sample Site Unique identification number for sample site
Latitude Latitude of sample site
Longitude Longitude of sample site
YEAR Year sample was collected
THICKNESS Thickness of horizon sampled in centimeters.
Al % Concentration of aluminum in weight percent determined by inductively couple plasma atomic emission spectroscopy
Ca% Concentration of calcium in weight percent determined by inductively coupled plasma emission spectroscopy
Fe % Concentration of iron in weight percent determined by inductively coupled plasma atomi emission spectroscopy
K % Concentration of potassium in weight percent determined by inductively coupled plasma atomic emission spectroscopy
Mg % Concentration of magnesium in weight percent determined by inductively coupled plasma atomic emission spectroscopy
Na % Concentration of sodium in weight percent determined by inductively coupled plasma atomic emission spectroscopy.
P % Concentration of phosphorus in weight percent determined by inductively coupled plasma atomic emission spectroscopy
Ti % Concentration of titanium in weight percent determined by inductively coupled plasma atomic emission spectroscopy
Ba ppm Concentration of barium in parts per million by inductively coupled plasma atomic emission spectroscopy
Ce ppm Concentration of cerium in parts per million determined by inductively coupled plasma atomic emission spectroscopy.
Co ppm Concentration of cobalt in parts per million determined by inductively coupled plasma atomic emission spectroscopy.
Cr ppm Concentration of chromium in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Cu ppm Concentration of copper in parts per million determined by inductively coupled plasma atomic emission spectroscopy.
La ppm Concentration of lanthanum in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Li ppm Concentration of lithium in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Mn ppm Concentration of manganese in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Nb ppm Concentration of niobium in parts per million determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicates below detection limit.
Ni ppm Concentration of nickel in parts per million determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicates below detection limit of 4 ppm
Pb ppm Concentration of lead in parts per million determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicates values below the detection limit of 4 ppm.
Sc ppm Concentration of scandium in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Sr ppm Concentration of strontium in parts per million determined by inductively coupled plasma atomic emission spectroscopy.
V ppm Concentration of vanadium in parts per million determined by inductively coupled plasma atomic emission spectroscopy.
Zn ppm Concentration of zinc in parts per million determined by inductively coupled plasma atomic emission spectroscopy.
As ppm Concentration of arsenic in parts per million determined by atomic absorption spectrophotometry.
Se ppm Concentration of selenium in parts per million determined by atomic absorption spectrophotometry; b.d. indicates values below the detection limit of 0.6 ppm
T_C Concentration of total carbon in weight percent determined by an automated carbon analyzer; n.a. indicates samples was not analyzed for carbon.
S % Concentration of sulfur in weight percent determined by automated sulfur analyzer; n.a. indicates sample was not analyzed for sulfur; b.d. indicates content below detection limit of 0.05%.
Hg ppm Concentration of mercury in parts per million determined by continuous flow-cold vapor atomic absorption spectrometry; b.d. indicates Hg content below detection limit of 0.02 ppm.

C_horizon.xls

Multi-element chemical analyses for C-horizon soil samples. Includes site identification, latitude, longitude, year the sample was collected, and the estimated thickness of the sampled horizon. File gives quantitative results for 28 elements. Additional elements were analyzed but not reported as they were consistently below detection limits for 90% to 100% of samples tested. Those eliminated elements and their detection limits in parts per million are: Ag (2), Au (8), Be (1), Bi (10), Cd (2), Eu (2), Ho (4), Mo (2), Nd (2), Sn (5), Ta (40), Th (6), and U (100). Ga is excluded because the relative percent difference between duplicates was consistently >25%.

Label Definition
Sample Site Unique identification number for sample
Latitude Latitude of sample site
Longitude Longitude of sample site
Year Year sample was collected
Collection_depth estimated depth in soil pit where sample was collected
Al % Concentration of aluminum in weight percent determined by inductively couple plasma atomic emission spectroscopy
Ca % Concentration of calcium in weight percent determined by inductively couple plasma atomic emission spectroscopy
Fe % Concentration of iron in weight percent determined by inductively coupled plasma atomic emission spectroscopy
K % Concentration of potassium in weight percent determined by inductively coupled plasma atomic emission spectroscopy
Mg % Concentration of magnesium in weight percent determined by inductively coupled plasma atomic emission spectroscopy
Na % Concentration of sodium in weight percent determined by inductively coupled plasma atomic emission spectroscopy.
P % Concentration of phosphorus in weight percent determined by inductively coupled plasma atomic emission spectroscopy
Ti % Concentration of titanium in weight percent determined by inductively coupled plasma atomic emission spectroscopy
Ba ppm Concentration of barium in parts per million by inductively coupled plasma atomic emission spectroscopy
Ce ppm Concentration of cerium in parts per million determined by inductively coupled plasma atomic emission spectroscopy.
Co ppm Concentration of cobalt in parts per million determined by inductively coupled plasma atomic emission spectroscopy.
Cr ppm Concentration of chromium in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Cu ppm Concentration of copper in parts per million determined by inductively coupled plasma atomic emission spectroscopy.
La ppm Concentration of lanthanum in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Li ppm Concentration of lithium in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Mn ppm Concentration of manganese in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Nb ppm Concentration of niobium in parts per million determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicates below detection limit.
Ni ppm Concentration of nickel in parts per million determined by inductively coupled plasma atomic emission spectroscopy.
Pb ppm Concentration of lead in parts per million determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicates values below the detection limit of 4 ppm.
Sc ppm Concentration of scandium in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Sr ppm Concentration of strontium in parts per million determined by inductively coupled plasma atomic emission spectroscopy.
V ppm Concentration of vanadium in parts per million determined by inductively coupled plasma atomic emission spectroscopy.
Y ppm Concentration of yttrium parts per million determined by inductively coupled plasma atomic emission spectroscopy.
Zn ppm Concentration of zinc in parts per million determined by inductively coupled plasma atomic emission spectroscopy.
As ppm Concentration of arsenic in parts per million determined by atomic absorption spectrophotometry.
Se ppm Concentration of selenium in parts per million determined by atomic absorption spectrophotometry; b.d. indicates values below the detection limit of 0.6 ppm
Hg ppm Concentration of mercury in parts per million determined by continuous flow-cold vapor atomic absorption spectrometry. b.d; indicates Hg content below detection limit of 0.02 ppm.

Mineralized_rock.xls

Multi-element chemical analyses for mineralized rock samples collected from native copper mine dumps and mineralized areas on Isle Royale. Includes sample field number, latitude, longitude, and the source of the mineralized rock sample. Quantitative results for 31 elements are included. Nine additional elements were analyzed but not reported as they were consistently below detection limits for 90% to 100% of samples tested. Those elements not included and their detection limits in parts per million are: Au (8), Be (1), Cd (2), Eu (2), Ho (4), Mo (2), Yb (1), and U (100). Ga is excluded because the relative percent difference between duplicates was consistently >25%.

Label Definition
Field No. Unique identification number for sample
Latitude latitude of sample site
Longitude Longitude of sample site
Mineralized_rock_source mine dump or area where sample was collected
Al % Concentration of aluminum in weight percent determined by inductively couple plasma atomic emission spectroscopy
Ca % Concentration of calcium in weight percent determined by inductively couple plasma atomic emission spectroscopy
Fe % Concentration of iron in weight percent determined by inductively coupled plasma atomic emission spectroscopy
Mg % Concentration of magnesium in weight percent determined by inductively coupled plasma atomic emission spectroscopy
Na % Concentration of sodium in weight percent determined by inductively coupled plasma atomic emission spectroscopy.
K % Concentration of potassium in weight percent determined by inductively coupled plasma atomic emission spectroscopy
P % Concentration of phosphorus in weight percent determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicates below the detection limit of .0005%.
Ti % Concentration of titanium in weight percent determined by inductively coupled plasma atomic emission spectroscopy
Ag ppm Concentration of silver in parts per million determined by inductively coupled plasma atomic emission spectroscopy Values of 1 indicate less than detection limit; b.d. indicates below the detection limit of 2 ppm.
Ba ppm Concentration of barium in parts per million by inductively coupled plasma atomic emission spectroscopy
Bi ppm Concentration of bismuth in parts per million determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicates below detection limit of 10 ppm.
Ce ppm Concentration of cerium in parts per million determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicates below detection limit of 5 ppm.
Co ppm Concentration of cobalt in parts per million determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicates below detection limit of 2 ppm.
Cr ppm Concentration of chromium in parts per million determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicates below detection limit of 2 ppm.
Cu ppm Concentration of copper in parts per million determined by inductively coupled plasma atomic emission spectroscopy.
La ppm Concentration of lanthanum in parts per million determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicates below detection limit of 2 ppm.
Li ppm Concentration of lithium in parts per million determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicates below the detection limit of 2 ppm.
Mn ppm Concentration of manganese in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Nb ppm Concentration of niobium in parts per million determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicate below detection limit of 4 ppm.
Nd ppm Concentration of neodymium in parts per million determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicates below detection limit of 9 ppm.
Ni ppm Concentration of nickel in parts per million determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicates below detection limit of 2 ppm.
Pb ppm Concentration of lead in parts per million determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicates below detection limit of 4 ppm.
Sc ppm Concentration of scandium in parts per million determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicates below detection limit of 2 ppm.
Sn ppm Concentration of tin in parts per million determined by hydride generation atomic absorption spectroscopy; b.d. indicates below detection limit of 5 ppm.
Sr ppm concentration of strontium in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Ta ppm Concentration of tantalum in parts per million determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicates below detection limit below 25 ppm.
Th ppm Concentration of thorium in parts per million determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicates below detection limit of 6 ppm.
V ppm Concentration of vanadium in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Y ppm Concentration of yttrium in parts per million determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicates below detection limit of 2 ppm.
Zn ppm Concentration of zinc in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Hg ppm Concentration of mercury in parts per million determined by continuous flow-cold vapor atomic absorption spectrometry; b.d. indicates below detection limit of 0.01 ppm.

Volcanic_bedrock.xls

Multi-element chemical analyses for volcanic bedrock samples from Isle Royale. The file includes field numbers for each sample, latitude, longitude, and field rock descriptions. Quantitative results for 49 elements by a number of techniques, including wave-length dispersive X-ray diffraction, instrumental neutron activation by long count, inductively coupled plasma-atomic emission spectroscopy, columetric titration, and cold-vapor atomic absorption spectrometry.

Label Definition
Field_No. Unique identification number for sample
Latitude Latitude of sample site
Longitude Longitude of sample site
Rock_Description Field description of bedrock sample with named volcanic flow, if known.
SiO2 % Concentration of SiO2 in weight percent determined by wave-length dispersive X-ray diffraction.
Al2O3 % Concentration of Al2O3 in weight percent determined by wave-length dispersive X-ray diffraction.
Fe2O3 % Concentration of Fe2O3 in weight percent determined by wave-length dispersive X-ray diffraction.
MnO % Concentration of MnO in weight percent determined by wave-length dispersive X-ray diffraction.
MgO % Concentration of MgO in weight percent determined by wave-length dispersive X-ray diffraction.
CaO % Concentration of CaO in weight percent determined by wave-length dispersive X-ray diffraction.
NaO % Concentration of Na2O in weight percent determined by wave-length dispersive X-ray diffraction.
K2O % Concentration of K2O in weight percent determined by wave-length dispersive X-ray diffraction.
P2O5 % Concentration of P2O5 in weight percent determined by wave-length dispersive X-ray diffraction; b.d. indicates below the detection limit of 0.006 weight percent.
TiO2 % Concentration of TiO2 in weight percent determined by wave-length dispersive X-ray diffraction.
LOI % Lost on Ignition percent determined during analysis by wave-length dispersive X-ray diffraction.
Fe % Concentration of iron in weight percent determined by instrumental neutron activation by long count.
K % Concentration of potassium in weight percent determined by instrumental neutron activation by long count; b.d. indicates values below the detection limit of 100 ppm.
Na % Concentration of sodium in weight percent determined by instrumental neutron activation by long count.
As ppm Concentration of arsenic in parts per million determined by instrumental neutron activation by long count; b.d. indicates below the detection limit of 0.1 ppm.
Ba ppm Concentration of barium in parts per million determined by instrumental neutron activation by long count.
Ce ppm Concentration of cerium in parts per million determined by instrumental neutron activation by long count.
Co ppm Concentration of cobalt in parts per million determined by instrumental neutron activation by long count.
Cr ppm Concentration of chromium in parts per million determined by instrumental neutron activation by long count.
Cs ppm Concentration of cesium in parts per million determined by instrumental neutron activation by long count; b.d indicates below detection limit of 0.05 ppm.
Eu ppm Concentration of europium in parts per million determined by instrumental neutron activation by long count.
Hf ppm Concentration of hafnium in parts per million determined by instrumental neutron activation by long count.
Ho ppm Concentration of holmium in parts per million determined by instrumental neutron activation by long count.
La ppm Concentration of lanthanum in parts per million determined by instrumental neutron activation by long count.
Lu ppm concentration of lutetium in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Nd ppm Concentration of neodymium in parts per million determined by instrumental neutron activation by long count.
Ni ppm Concentration of nickel in parts per million determined by instrumental neutron activation by long count; b.d indicates below the detection limit of 10 ppm.
Rb ppm Concentration of rubidium in parts per million determined by instrumental neutron activation by long count; b.d indicates below the detection limit of 0.5 ppm.
Sb ppm Concentration of antimony in parts per million determined by instrumental neutron activation by long count; b.d indicates below the detection limit of 0.5 ppm.
Sc ppm Concentration of scandium in parts per million determined by instrumental neutron activation by long count; b.d indicates below the detection limit of 0.5 ppm.
Sm ppm Concentration of samarium in parts per million determined by instrumental neutron activation by long count.
Sr ppm Concentration of strontium in parts per million determined by instrumental neutron activation by long count.
Ta ppm Concentration of tantalum in parts per million determined by instrumental neutron activation by long count.
Tb ppm Concentration of terbium in parts per million determined by instrumental neutron activation by long count.
Th ppm Concentration of thorium in parts per million determined by instrumental neutron activation by long count.
U ppm Concentration of uranium in parts per million determined by instrumental neutron activation by long count.
Yb ppm Concentration of ytterbium in parts per million determined by instrumental neutron activation by long count.
Zn ppm Concentration of zinc in parts per million determined by instrumental neutron activation by long count; b.d. indicates below detection limit of 1 ppm.
Zr ppm Concentration of zircon in parts per million determined by instrumental neutron activation by long count.
Cu ppm Concentration of copper in parts per million determined by inductively coupled plasma-atomic emission spectroscopy.
Ga ppm Concentration of gallium in parts per million determined by inductively coupled plasma-atomic emission spectroscopy.
Li ppm Concentration of lithium in parts per million determined by inductively coupled plasma-atomic emission spectroscopy.
Pb ppm Concentration of lead in parts per million determined by inductively coupled plasma-atomic emission spectroscopy.
Sn ppm Concentration of tin in parts per million determined by inductively coupled plasma-atomic emission spectroscopy; b.d. indicates below detection limit of 5 ppm.
V ppm Concentration of vanadium in parts per million determined by inductively coupled plasma-atomic emission spectroscopy.
Y ppm Concentration of yttrium in parts per million determined by inductively coupled plasma-atomic emission spectroscopy.
S % Concentration of sulfur in weight percent determined by automated sulfur analyzer; b.d. indicates below the detection limit of 0.05%.
CO2 % Concentration of carbonate in weight percent determined by columetric titration.
Hg ppm Concentration of mercury in parts per million determined by continuous flow cold vapor atomic absorption spectrophotometry; b. d. indicates below the detection limit of 0.02 ppm.

Sedimentary_bedrock.xls

Multi-element chemical analyses for sedimentary rock samples collected on Isle Royale. Includes sample field number, latitude, longitude, and a description of the rock sample. Quantitative results for 27 elements are included. Additional elements were analyzed but not reported as they were consistently below below detection limits for 90% to 100% of samples tested. Those elements not included and their detection limits in parts per million are: Ag (2), Au (8), Be (1), Bi (10), Cd (2), Eu (2), Ga (4), Ho (4), Mo (4), Sn (50), Ta (40), and U (100). Ga is not included because of poor relative percent difference between duplicates.

Label Definition
Field No. unique sample identification number
Latitude latitude of sample site
Longitude longitude of sample site
Rock Description description of the rock sample
Al % concentration of aluminum in weight percent determined by inductively coupled plasma atomic emission spectroscopy
Ca % concentration of calcium in weight percent determined by inductively coupled plasma atomic emission spectroscopy
Fe % concentration of iron in weight percent determined by inductively coupled plasma atomic emission spectroscopy
K % concentration of potassium in weight percent determined by inductively coupled plasma atomic emission spectroscopy
Mg % concentration of magnesium in weight percent determined by inductively coupled plasma atomic emission spectroscopy
Na % concentration of sodium in weight percent determined by inductively coupled plasma atomic emission spectroscopy
P % concentration of phosphorus in weight percent determined by inductively coupled plasma atomic emission spectroscopy
Ti % concentration of titanium in weight percent determined by inductively coupled plasma atomic emission spectroscopy
Ba ppm concentration of barium in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Ce ppm concentration of cerium in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Cr ppm concentration of chromium in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Cu ppm concentration of copper in parts per million determined by inductively coupled plasma atomic emission spectroscopy
La ppm concentration of lanthanum in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Li ppm concentration of lithium in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Mn ppm concentration of manganese in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Nb ppm concentration of niobium in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Nd ppm concentration of neodymium in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Pb ppm concentration of lead in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Sc ppm concentration of scandium in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Sr ppm concentration of strontium in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Th ppm concentration of thorium in parts per million determined by inductively coupled plasma atomic emission spectroscopy
V ppm concentration of vanadium in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Y ppm concentration of yttrium in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Yb ppm concentration of ytterbium in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Zn ppm concentration of zinc in parts per million determined by inductively coupled plasma atomic emission spectroscopy
As ppm concentration of arsenic in parts per million determined by atomic absorption spectrophotometry
Se ppm concentration of selenium in parts per million determined by atomic absorption spectrophotometry; b.d. indicates below detection limit of 0.2 ppm
Hg ppm concentration of mercury in parts per million determined by continuous flow-cold vapor atomic absorption spectrometry

O_horizon.xls

Multi-element analyses of organic materials collected from the forest floor and analyzed at the University of Wisconsin Plant and Soil Laboratory, Madison, Wisconsin. Samples were also analyzed at the USGS laboratories in Denver, CO for mercury. File includes sample site, latitude, longitude, year collected, descriptions of the forest floor material, (including dominate tree type and general character of the organic material), horiz on, which distinguishes between Oi (forest litter) and Oe (forest duff or humic material), as well as quantitative analyses for 24 elements and determination of % ash from both the University of Wisconsin and the USGS.

Label Definition
Sample Site unique identification number for sample
Latitude latitude of sample site
(no label) longitude of sample site
Year Year collected
Forest Floor Material Comment dominant tree type in sample area and general character of organic material at the forest surface
Horizon horizon classification of sample
Al ppm concentration of aluminum in parts per million determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates sample was not analyzed for that element
B ppm concentration of boron in parts per million determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates sample was not analyzed for that element; b.d. indicates below detection
Ca ppm concentration of calcium in parts per million determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates sample was not analyzed for that element
Cu ppm concentration of copper in parts per million determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates sample was not analyzed for that element; b.d. indicates below detection
Fe ppm concentration of iron in parts per million determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates sample was not analyzed for that element
Hg ppm concentration of mercury in parts per million determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates sample was not analyzed for that element; b.d. indicates below detection
K ppm concentration of potassium in parts per million determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates sample was not analyzed for that element
Mg ppm concentration of magnesium in parts per million determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates sample was not analyzed for that element
Mn ppm concentration of manganese in parts per million determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates sample was not analyzed for that element
Mo ppm concentration of molybdenum in parts per million determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates sample was not analyzed for that element
Na ppm concentration of sodium in parts per million determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates sample was not analyzed for that element; b.d. indicates below detection
P ppm concentration of phosphorus in parts per million determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates sample was not analyzed for that element
S ppm concentration of sulfur in parts per million determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates sample was not analyzed for that element
Zn ppm concentration of zinc in parts per million determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates sample was not analyzed for that element
As ppm concentration of arsenic in parts per million determined by inductively coupled plasma mass spectrometry
Cd ppm concentration of cadmium in parts per million determined by inductively coupled plasma mass spectrometry
Co ppm concentration of cobalt in parts per million determined by inductively coupled plasma mass spectrometry
Cr ppm concentration of chromium in parts per million determined by inductively coupled plasma mass spectrometry
Ni ppm concentration of nickel in parts per million determined by inductively coupled plasma mass spectrometry
Pb ppm concentration of lead in parts per million determined by inductively coupled plasma mass spectrometry
Se ppm concentration of selenium in parts per million determined by inductively coupled plasma mass spectrometry
Ti ppm concentration of titanium in parts per million determined by inductively coupled plasma mass spectrometry
V ppm concentration of vanadium in parts per million determined by inductively coupled plasma mass spectrometry
Hg ppm concentration of mercury in parts per million determined by continuous flow cold vapor atomic absorption spectrometry at the USGS laboratories in Denver, CO; n.a. indicates not analyzed
% Ash percent ash determined by the University of Wisconsin Plant and Soil Analyses Laboratory, Madison, WI; n.a. indicates not analyzed (equivalent to not ashed)
% Ash percent ash determined by the USGS laboratories in Denver, CO; n.a. indicates not analyzed (equivalent to not ashed)

Lichens.xls

Multi-element chemical analyses of four lichen species: Evernia mesomorpha, Hypogymnia plysodes, Parmelia sucata, and Cladina rangiferina. Lichens were analyzed at the University of Wisconsin Soil and Plant Analysis Laboratory, Madison, WI. File is organized by element and subdivided by lichen species.

Label Definition
Sample Site unique location for lichen collecting site
Latitude latitude of sample site
Longitude longitude of sample site
Year year sample was collected
Epiphytic lichen comments description of trees where epiphytic lichens were collected
Al ppm concentration of aluminum in ppm in lichen species Evernia mesomorpha determined by inductively coupled plasma optical emission spectroscopy
Al ppm concentration of aluminum in ppm in lichen species Hypogymnia plysodes determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates lichen not analyzed
Al ppm concentration of aluminum in ppm in lichen species Parmelia sucata determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates not analyzed
Al ppm concentration of aluminum in ppm in lichen species Cladina Rangiferina determined by inductively coupled plasma optical emission spectroscopy; n.c. indicates lichen was not collected
B ppm concentration of boron in ppm in lichen species Evernia mesomorpha determined by inductively coupled plasma optical emission spectroscopy
B ppm concentration of boron in ppm in lichen species Hypogymnia plysodes determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates not analyzed
B ppm concentration of boron in ppm in lichen species Parmelia sucata determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates not analyzed
B ppm concentration of boron in ppm in lichen species Cladina Rangiferina determined by inductively coupled plasma optical emission spectroscopy; n.c. indicates lichen was not collected
Ca ppm concentration of calcium in ppm in lichen species Evernia mesomorpha determined by inductively coupled plasma optical emission spectroscopy
Ca ppm concentration of calcium in ppm in lichen species Hypogymnia plysodes determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates not analyzed
Ca concentration of calcium in ppm in lichen species Parmelia sucata determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates not analyzed
Ca ppm concentration of calcium in ppm in lichen species Cladina Rangiferina determined by inductively coupled plasma optical emission spectroscopy; n.c. indicates lichen was not collected
Cu ppm concentration of copper in ppm in lichen species Evernia mesomorpha determined by inductively coupled plasma optical emission spectroscopy
Cu ppm concentration of copper in ppm in lichen species Hypogymnia plysodes determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates not analyzed
Cu ppm concentration of copper in ppm in lichen species Parmelia sucata determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates not analyzed
Cu ppm concentration of copper in ppm in lichen species Cladina Rangiferina determined by inductively coupled plasma optical emission spectroscopy; n.c. indicates lichen was not collected
Fe ppm concentration of iron in ppm in lichen species Evernia mesomorpha determined by inductively coupled plasma optical emission spectroscopy
Fe ppm concentration of iron in ppm in lichen species Hypogymnia plysodes determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates not analyzed
Fe ppm concentration of iron in ppm in lichen species Parmelia sucata determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates not analyzed
Fe ppm concentration of iron in ppm in lichen species Cladina Rangiferina determined by inductively coupled plasma optical emission spectroscopy; n.c. indicates lichen was not collected
K ppm concentration of potassium in ppm in lichen species Evernia mesomorpha determined by inductively coupled plasma optical emission spectroscopy
K ppm concentration of potassium in ppm in lichen species Hypogymnia plysodes determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates not analyzed
K ppm concentration of potassium in ppm in lichen species Parmelia sucata determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates not analyzed
K ppm concentration of potassium in ppm in lichen species Cladina Rangiferina determined by inductively coupled plasma optical emission spectroscopy; n.c. indicates lichen was not collected
Mg ppm concentration of magnesium in ppm in lichen species Evernia mesomorpha determined by inductively coupled plasma optical emission spectroscopy
Mg ppm concentration of magnesium in ppm in lichen species Hypogymnia plysodes determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates not analyzed
Mg ppm concentration of magnesium in ppm in lichen species Parmelia sucata determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates not analyzed
Mg ppm concentration of magnesium in ppm in lichen species Cladina Rangiferina determined by inductively coupled plasma optical emission spectroscopy; n.c. indicates lichen was not collected
Mn ppm concentration of manganese in ppm in lichen species Evernia mesomorpha determined by inductively coupled plasma optical emission spectroscopy
Mn ppm concentration of manganese in ppm in lichen species Hypogymnia plysodes determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates not analyzed
Mn ppm concentration of manganese in ppm in lichen species Parmelia sucata determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates not analyzed
Mn ppm concentration of manganese in ppm in lichen species Cladina Rangiferina determined by inductively coupled plasma optical emission spectroscopy; n.c. indicates lichen was not collected
Na ppm concentration of sodium in ppm in lichen species Evernia mesomorpha determined by inductively coupled plasma optical emission spectroscopy
Na ppm concentration of sodium in ppm in lichen species Hypogymnia plysodes determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates not analyzed
Na ppm concentration of sodium in ppm in lichen species Parmelia sucata determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates not analyzed
Na ppm concentration of sodium in ppm in lichen species Cladina Rangiferina determined by inductively coupled plasma optical emission spectroscopy; n.c. indicates lichen was not collected
P ppm concentration of phosphorous in ppm in lichen species Evernia mesomorpha determined by inductively coupled plasma optical emission spectroscopy
P ppm concentration of phosphorous in ppm in lichen species Hypogymnia plysodes determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates not analyzed
P ppm concentration of phosphorous in ppm in lichen species Parmelia sucata determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates not analyzed
P ppm concentration of phosphorous in ppm in lichen species Cladina Rangiferina determined by inductively coupled plasma optical emission spectroscopy; n.c. indicates lichen was not collected
S ppm concentration of sulfur in ppm in lichen species Evernia mesomorpha determined by inductively coupled plasma optical emission spectroscopy
S ppm concentration of sulfur in ppm in lichen species Hypogymnia plysodes determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates not analyzed
S ppm concentration of sulfur in ppm in lichen species Parmelia sucata determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates not analyzed
S ppm concentration of sulfur in ppm in lichen species Cladina Rangiferina determined by inductively coupled plasma optical emission spectroscopy; n.c. indicates lichen was not collected
Zn ppm concentration of zinc in ppm in lichen species Evernia mesomorpha determined by inductively coupled plasma optical emission spectroscopy
Zn ppm concentration of zinc in ppm in lichen species Hypogymnia plysodes determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates not analyzed
Zn ppm concentration of zinc in ppm in lichen species Parmelia sucata determined by inductively coupled plasma optical emission spectroscopy; n.a. indicates not analyzed
Zn ppm concentration of zinc in ppm in lichen species Cladina Rangiferina determined by inductively coupled plasma optical emission spectroscopy; n.c. indicates lichen was not collected
As ppm concentration of arsenic in ppm in lichen species Evernia mesomorpha determined by inductively coupled plasma mass spectroscopy
As ppm concentration of arsenic in ppm in lichen species Hypogymnia plysodes determined by inductively coupled plasma mass spectroscopy
As ppm concentration of arsenic in ppm in lichen species Parmelia sucata determined by inductively coupled plasma mass spectroscopy
As ppm concentration of arsenic in ppm in lichen species Cladina Rangiferina determined b
Cd ppm concentration of cadmium in ppm in lichen species Evernia mesomorpha determined by inductively coupled plasma mass spectroscopy
Cd ppm concentration of cadmium in ppm in lichen species Hypogymnia plysodes determined by inductively coupled plasma mass spectroscopy; n.a. indicates not analyzed
Cd ppm concentration of cadmium in ppm in lichen species Parmelia sucata determined by inductively coupled plasma mass spectroscopy; n.a. indicates not analyzed
Cd ppm concentration of cadmium in ppm in lichen species Cladina Rangiferina determined by inductively coupled plasma mass spectroscopy; n.c. indicates lichen was not collected
Co ppm concentration of cobalt in ppm in lichen species Evernia mesomorpha determined by inductively coupled plasma mass spectroscopy
Co ppm concentration of cobalt in ppm in lichen species Hypogymnia plysodes determined by inductively coupled plasma mass spectroscopy; n.a. indicates not analyzed
Co ppm concentration of cobalt in ppm in lichen species Parmelia sucata determined by inductively coupled plasma mass spectroscopy; n.a. indicates not analyzed
Co ppm concentration of cobalt in ppm in lichen species Cladina Rangiferina determined by inductively coupled plasma mass spectroscopy; n.c. indicates lichen was not collected
Cr ppm concentration of chromium in ppm in lichen species Evernia mesomorpha determined by inductively coupled plasma mass spectroscopy
Cr ppm concentration of chromium in ppm in lichen species Hypogymnia plysodes determined by inductively coupled plasma mass spectroscopy; n.a. indicates not analyzed
Cr ppm concentration of chromium in ppm in lichen species Parmelia sucata determined by inductively coupled plasma mass spectroscopy; n.a. indicates not analyzed
Cr ppm concentration of chromium in ppm in lichen species Cladina Rangiferina determined by inductively coupled plasma mass spectroscopy; n.c. indicates lichen was not collected
Mo ppm concentration of molybdenum in ppm in lichen species Evernia mesomorpha determined by inductively coupled plasma mass spectroscopy
Mo ppm concentration of molybdenum in ppm in lichen species Hypogymnia plysodes determined by inductively coupled plasma mass spectroscopy; n.a. indicates not analyzed
Mo ppm concentration of molybdenum in ppm in lichen species Parmelia sucata determined by inductively coupled plasma mass spectroscopy; n.a. indicates not analyzed
Mo ppm concentration of molybdenum in ppm in lichen species Cladina Rangiferina determined by inductively coupled plasma mass spectroscopy; n.c. indicates lichen was not collected
Ni ppm concentration of nickel in ppm in lichen species Evernia mesomorpha determined by inductively coupled plasma mass spectroscopy
Ni ppm concentration of nickel in ppm in lichen species Hypogymnia plysodes determined by inductively coupled plasma mass spectroscopy; n.a. indicates not analyzed
Ni ppm concentration of nickel in ppm in lichen species Parmelia sucata determined by inductively coupled plasma mass spectroscopy; n.a. indicates not analyzed
Ni ppm concentration of nickel in ppm in lichen species Cladina Rangiferina determined by inductively coupled plasma mass spectroscopy; n.c. indicates lichen was not collected
Pb ppm concentration of lead in ppm in lichen species Evernia mesomorpha determined by inductively coupled plasma mass spectroscopy
Pb ppm concentration of lead in ppm in lichen species Hypogymnia plysodes determined by inductively coupled plasma mass spectroscopy; n.a. indicates not analyzed
Pb ppm concentration of lead in ppm in lichen species Parmelia sucata determined by inductively coupled plasma mass spectroscopy; n.a. indicates not analyzed
Pb ppm concentration of lead in ppm in lichen species Cladina Rangiferina determined by inductively coupled plasma mass spectroscopy; n.c. indicates lichen was not collected
Se ppm concentration of selenium in ppm in lichen species Evernia mesomorpha determined by inductively coupled plasma mass spectroscopy
Se ppm concentration of selenium in ppm in lichen species Hypogymnia plysodes determined by inductively coupled plasma mass spectroscopy; n.a. indicates not analyzed
Se ppm concentration of selenium in ppm in lichen species Parmelia sucata determined by inductively coupled plasma mass spectroscopy; n.a. indicates not analyzed
Se ppm concentration of selenium in ppm in lichen species Cladina Rangiferina determined by inductively coupled plasma mass spectroscopy; n.c. indicates lichen was not collected
Ti ppm concentration of titanium in ppm in lichen species Evernia mesomorpha determined by inductively coupled plasma mass spectroscopy
Ti ppm concentration of titanium in ppm in lichen species Hypogymnia plysodes determined by inductively coupled plasma mass spectroscopy; n.a. indicates not analyzed
Ti ppm concentration of titanium in ppm in lichen species Parmelia sucata determined by inductively coupled plasma mass spectroscopy; n.a. indicates not analyzed
Ti ppm concentration of titanium in ppm in lichen species Cladina Rangiferina determined by inductively coupled plasma mass spectroscopy; n.c. indicates lichen was not collected
V ppm concentration of vanadium in ppm in lichen species Evernia mesomorpha determined by inductively coupled plasma mass spectroscopy
V ppm concentration of vanadium in ppm in lichen species Hypogymnia plysodes determined by inductively coupled plasma mass spectroscopy; n.a. indicates not analyzed
V ppm concentration of vanadium in ppm in lichen species Parmelia sucata determined by inductively coupled plasma mass spectroscopy; n.a. indicates not analyzed
V ppm concentration of vanadium in ppm in lichen species Cladina Rangiferina determined by inductively coupled plasma mass spectroscopy; n.c. indicates lichen was not collected
Hg ppm concentration of mercury in ppm in lichen species Evernia mesomorpha determined by inductively coupled plasma mass spectroscopy; n.r. indicates not reported
Hg ppm concentration of mercury in ppm in lichen species Hypogymnia plysodes determined by inductively coupled plasma mass spectroscopy; n.r. indicates not reported
Hg ppm concentration of mercury in ppm in lichen species Parmelia sucata determined by inductively coupled plasma mass spectroscopy; n.r. indicates not reported
Hg ppm concentration of mercury in ppm in lichen species Cladina Rangiferina determined by inductively coupled plasma mass spectroscopy; n.c. indicates lichen was not collected; n.r. indicates not reported
Ash % Percent ash in lichen species Evernia mesomorpha; n.a. indicates sample not analyzed (essentially, not ashed)
Ash % Percent ash in lichen species Hypogymnia plysodes; n.a. indicates sample not analyzed (essentially, not ashed)
Ash % Percent ash in lichen species Parmelia sucata; n.a. indicates sample not analyzed (essentially, not ashed)
Ash % Percent ash in lichen species Cladina Rangiferina; n.a. indicates sample not analyzed (essentially, not ashed); n.c. indicates not collected

Sargent_Lake_core.xls

Multi-element chemical compositions lake sediment core collected from a series of 1-meter cores from a single borehole in Sargent Lake, Isle Royale. Includes field number; sample descriptions, estimated depth (in centimeters) from the top of the water-sediment interface (sample depths increase with depth down hole), and quantitative results for 31 elements. Additional elements were analyzed but are not reported as they were consistently below detection limit for 90% to 100% of samples tested. Those eliminated elements and their detection limits in parts per million are: Ag (2), Au (8), Be (1), Bi (10), Cd (2), Eu (2), Ho (4), Mo (2), Sn (5), Ta (40), U (100) and Yb (1). Ga is not included as the relative percent difference between duplicates were consistently >25%.

Label Definition
Field Number unique sample identification for each split of core material
Sample Description Core number (number from top of hole to bottom, source of sampled core material, and description of core material
Estimated depth Estimated depth of core material measured from the top of the sediment-water interface.
Al % concentration of aluminum in weight percent determined by inductively coupled plasma atomic emission spectroscopy
Ca % concentration of calcium in weight percent determined by inductively coupled plasma atomic emission spectroscopy
Fe % concentration of iron in weight percent determined by inductively coupled plasma atomic emission spectroscopy
K % concentration of potassium in weight percent determined by inductively coupled plasma atomic emission spectroscopy
Mg % concentration of magnesium in weight percent determined by inductively coupled plasma atomic emission spectroscopy
Na % concentration of sodium in weight percent determined by inductively coupled plasma atomic emission spectroscopy
P % concentration of phosphorous in weight percent determined by inductively coupled plasma atomic emission spectroscopy
Ti % concentration of titanium in weight percent determined by inductively coupled plasma atomic emission spectroscopy
Ba ppm concentration of barium in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Ce ppm concentration of cerium in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Co ppm concentration of cobalt in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Cr ppm concentration of chromium in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Cu ppm concentration of copper in parts per million determined by inductively coupled plasma atomic emission spectroscopy
La ppm concentration of lanthanum in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Li ppm concentration of lithium in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Mn ppm concentration of manganese in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Nb ppm concentration of niobium in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Nd ppm concentration of neodymium in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Ni ppm concentration of nickel in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Pb ppm concentration of lead in parts per million determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicates below detection limit of 4 ppm
Sc ppm concentration of scandium in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Sr ppm concentration of strontium in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Th ppm concentration of thorium in parts per million determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicates below detection limit of 6 ppm
V ppm concentration of vanadium in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Y ppm concentration of yttrium in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Zn ppm concentration of zinc in parts per million determined by inductively coupled plasma atomic emission spectroscopy
As ppm concentration of arsenic in parts per million determined by atomic absorption spectrophotometry; n.a. indicates not analyzed
Se ppm concentration of selenium in parts per million determined by atomic absorption spectrophotometry
Carbonate C % concentration of carbonate carbon in weight percent determined by columetric titration; b.d. indicates below detection limit of 0.01%
Total C % concentration of total carbon in weight percent determined by automated carbon analyzer; n.a. indicates not analyzed
S % concentration of sulfur in weight percent determined by automated sulfur analyzer; b.d. indicates below detection limit of 0.05%; n.a. indicates not analyzed
Hg ppm concentration of mercury in parts per million determined by continuous flow cold vapor atomic absorption spectrophotometry

Lake_Richie.xls

Multi-element chemical compositions lake sediment core collected from a series of 1-meter cores from a single borehole in Sargent Lake, Isle Royale. Includes field number; sample descriptions, estimated depth (in centimeters) from the top of the water-sediment interface (sample depths increase with depth down hole), and quantitative results for 31 elements. Additional elements were analyzed but are not reported as they were consistently below detection limit for 90% to 100% of samples tested. Those eliminated elements and their detection limits in parts per million are: Ag (2), Au (8), Be (1), Bi (10), Cd (2), Eu (2), Ho (4), Mo (2), Sn (5), Ta (40), U (100) and Yb (1). Ga is not included as the relative percent difference between duplicates were consistently >25%.

Label Definition
Field No. unique sample identification for each split of core material
Sample Description Core number (number from top of hole to bottom, source of sampled core material, description of core material
Estimated depth Estimated depth of core material measured from the top of the sediment-water interface.
Al % concentration of aluminum in weight percent determined by inductively coupled plasma atomic emission spectroscopy
Ca % concentration of calcium in weight percent determined by inductively coupled plasma atomic emission spectroscopy
Fe % concentration of iron in weight percent determined by inductively coupled plasma atomic emission spectroscopy
K % concentration of potassium in weight percent determined by inductively coupled plasma atomic emission spectroscopy
Mg % concentration of magnesium in weight percent determined by inductively coupled plasma atomic emission spectroscopy
Na % concentration of sodium in weight percent determined by inductively coupled plasma atomic emission spectroscopy
P % concentration of phosphorous in weight percent determined by inductively coupled plasma atomic emission spectroscopy
Ti % concentration of titanium in weight percent determined by inductively coupled plasma atomic emission spectroscopy
Ba ppm concentration of barium in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Ce ppm concentration of cerium in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Co ppm concentration of cobalt in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Cr ppm concentration of chromium in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Cu ppm concentration of copper in parts per million determined by inductively coupled plasma atomic emission spectroscopy
La ppm concentration of lanthanum in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Li ppm concentration of lithium in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Mn ppm concentration of manganese in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Nb ppm concentration of niobium in parts per million determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicates below detection limit of 4 ppm
Nd ppm concentration of neodymium in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Ni ppm concentration of nickel in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Pb ppm concentration of lead in parts per million determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicates below detection limit of 4 ppm
Sc ppm concentration of scandium in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Sr ppm concentration of strontium in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Th ppm concentration of thorium in parts per million determined by inductively coupled plasma atomic emission spectroscopy; b.d. indicates below detection limit of 6 ppm
V ppm concentration of vanadium in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Y ppm concentration of yttrium in parts per million determined by inductively coupled plasma atomic emission spectroscopy
Zn ppm concentration of zinc in parts per million determined by inductively coupled plasma atomic emission spectroscopy
As ppm concentration of arsenic in parts per million determined by atomic absorption spectrophotometry
Se ppm concentration of selenium in parts per million determined by atomic absorption spectrophotometry; b.d. indicates below detection limit of 0.6 ppm
Carbonate_C % concentration of carbonate carbon in weight percent determined by columetric titration; b.d. indicates below detection limit of 0.01%
Total_C % concentration of total carbon in weight percent determined by automated carbon analyzer; n.a. indicates not analyzed
S % concentration of sulfur in weight percent determined by automated sulfur analyzer; b.d. indicates below detection limit of 0.05%; n.a. indicates not analyzed
Hg ppm concentration of mercury in parts per million determined by continuous flow cold vapor atomic absorption spectrophotometry