U.S. Geological Survey 2001 map Reston, VA U.S. Geological Survey Baedecker, Philip A. Grossman, Jeffrey N. Buttleman, Kim P. 1998 Tabular digital data U.S. Geological Survey Digital Data Series DDS-47 This dataset contains geochemical data for unconsolidated sediments (stream sediments, lake sediments, etc.) collected in the United States and analyzed in the analytical laboratories of the Geologic Division of the U.S. Geological Survey (USGS). These data represent analyses of sediment samples collected in support of various USGS programs. The data were originally entered into the in-house PLUTO database which was used by the Geologic Division from the mid-1970's through the mid-1990's to archive geochemical data. A portion of the PLUTO data base is published as: Baedecker, P.A., Grossman, J.N., and Buttleman, K.P., 1998, National Geochemical Data base: PLUTO geochemical data base for the United States: U.S. Geological Survey Digital Data Series DDS-47. The data presented here are derived from DDS-47. The PLUTO data base is comprised of inorganic geochemical data obtained by the analytical laboratories of the Geologic Division of the U.S. Geological Survey for samples collected throughout the United States, including Hawaii and Alaska, in support of USGS research. 1963 1995 Publication date Complete None planned. The PLUTO database has been subsumed into the National Geochemical Database; further changes will be reflected in that collection, not published as revisions of PLUTO itself. -174.5833 -67 70.4583 19.275 None sediment geochemistry geochemical data None United States of America None 2001 None None Smith, David B. U.S. Geological Survey Mailing address

Box25046, MS 973 Denver Federal Center

Denver Colorado 80225 United States of America 1-303-236-1849 1-303-236-3200 <dsmith@usgs.gov> The samples in this dataset were chemically analyzed by a variety of techniques over a period of time from the early 1960's to the mid-1990's. The accuracy of the data varies with the analytical methodology and with the concentration of the element being analyzed. A qualifier such as "<" (less than) or ">" (greater than) accompanies some analytical data values. These qualifiers are defined as follows: Sumbol < = the element was detected by the technique but at a level below the lower limit of determination for the method. The value of the lower limit of determination is given in the accompanying data field. Symbol > = the element was measured at a concentration greater than the upper limit of determination for the method. The value of the upper limit of determination is given in the accompanying data field. Symbol N = the element was measured at a concentration less than the lower limit of determination for the method. The value of the lower limit of determination is given in the accompanying data field. Symbol B = the element was requested for analysis by the sample submitter, but for some reason the laboratories did not analyze for this element. When appropriate, these qualifying values appear in this dataset as a separate field preceding each element. The attribute, or field name, for the qualifying values field are always labelled Q. For example, "<" in the "Si_Q" field preceding an analytical data field labelled Si would indicate the actual concentration of silicon is less than the data value listed. More than one analytical technique may have been used to produce data for a given sample. In these cases, more than one record will be listed for one sample with each record representing a different analytical method. This dataset provides chemcial data for Si, Al, Fe, Mg, Ca, Na, K, Ti, P, Ag, As, Au, B, Ba, Be, Bi, Cd, Co, Cr, Cu, La, Mo, Nb, Ni, Pb, Pd, Pt, Sb, Sn, Sr, U, V, W, Y, Zr, Ce, Li, Th, Tl, Rh, Ru, Rb, Zn, F, Hg, S, Te, Se, organic carbon and FeO. In addition, the dataset provides location and descriptive information for each sample. Not all the descriptive fields contain information for a particular sample because it was not recorded by the submitter or because it was never entered into the PLUTO database. The analytical methods used were selected by the sample submitter based on the goals of the project and will vary throughout the data set. The analytical methods used are documented in the following publications: Arbogast, B.F., editor, 1990, Quality assurance manual for the Branch of Geochemistry: U.S. Geological Survey Open-File Report 90-668. Baedecker, P.A., editor, 1987, Methods of geochemical analysis: U.S. Geological Survey Bulletin 1770. Sample locations were determined from USGS topographic maps of various scales. The accuracy is dependant on the scale of the map from which the determination was made as well as the care taken by the individual who made the determination. When submitters reported locations as degrees, minutes, and seconds of latitude and longitude the accuracy should be within a few seconds. When submitters only reported locations as degrees and minutes the accuracy is only to the nearest minute. The latitude and longitude degrees, minutes, and seconds have been converted to decimal degrees for this dataset. The base maps, from which latitude and longitude coordinates were determined, use the 1927 North American Datum (NAD27) based on the Clarke 1866 ellipsoid. The data were generated by the analytical laboratories of the U.S. Geological Survey over several years, beginning in the early 1960s and ending about 1995. Upon completion of the chemical analysis, the data were stored in the PLUTO database. Portions of this database were published in 1998 in DDS-47. USGS DDS-47 was used to generate the sediment data set. The GSSEARCH software accompanying DDS-47 was used to retrieve all sample media labeled as "unconsolidated sediment" from the CD and was stored in ASCII format. Another program contained on DDS-47 was used to convert the ASCII file to a .dbf file. This file contains data for a total of 79,709 sediment samples. However, the total number of records in the file is 127,288. This is because each sediment sample analyzed by more than one analytical technique has a separate record for each technique. Thus, one sediment sample may be listed several times. The following codes are used to represent the analytical methods: >WX = wavelength dispersive X-ray fluorescence analysis >EX = energy dispersive X-ray fluorescence analysis >SQ = semiquantitative spectro-analysis >QS = quantitative spectro-analysis >IN = instrumental neutron activation analysis >AA = flame and graphite furnace atomic absorption analysis >CH = miscellaneous chemical analysis >DN = delayed neutron anaysis >MS = inductively coupled plasma - mass spectrographic analysis Note that many of the samples have no analytical method identified. This is a shortcoming of the PLUTO database.The PLUTO DBF file was imported into ArcView 3.2 and an ArcView shapefile was generated which contained 127,288 sample locations. 200101 vector Point 127288 Variable, generally a few thousandths of a degree. Variable, generally a few thousandths of a degree. Decimal degrees Sediment sample analysis Information about each sample and its chemical composition labno Unique identification number assigned by the laboratory field Field number assigned by the submitter designated in the "name" field. U.S. Geological Survey jobn Laboratory job number assigned by the analytical laboratory. One job number may contain from one to a few hundred samples. U.S. Geological Survey state State in which the sample was collected. U.S. Geological Survey 2-letter state abbreviation; for example CO, CA, VA, etc. FIPS 5-2 county County in which the sample was collected. U.S. Geological Survey lat North latitude of sample site reported in decimal degrees. (NAD27, Clarke 1866) U.S. Geological Survey 19.275 70.4583 Decimal degrees lon Longitude of sample site reported in decimal degrees. Longitudes up to 180 degrees west are reported in negative decimal degrees. Longitudes up to 180 degrees east are reported in positive decimal degrees. (NAD27, Clarke 1866) U.S. Geological Survey -174.5833 -67 Decimal degrees mat Category of sample material U.S. Geological Survey, Open-File Report 93-533: Sample Submittal Manual, Fourth Edition, 1993; Instructions for Submitting Samples to the Branch of Geochemistry D Unconsolidated sediment (It should be noted that there are many types of unconsolidated sediment in this data set. Some samples have only been sieved to specific size fractions before analysis. Other samples, for example, have undergone further sample preparation in the form of heavy liquid separation and/or magnetic separation to concentrate specific heavy minerals. Information on the specific type of sediment is generally given in the "DESCRIPTN" field where the person who collected the samples should explain the preparation protocol prior to analysis.) U.S. Geological Survey, Open-File Report 93-533. Descriptn Sample description and comments. This column is provided for noting more specific information regarding the sample material, sample preparation protocol, and/or distinguishing characteristics of the sample. U.S. Geological Survey, Open-File Report 93-533. name Name of person who sumbitted the sample to the laboratory for chemical analysis. U.S. Geological Survey Sub. Date Date sample was submmitted to the laboratory for preparation and analysis. YYYYMMDD 4-digit year followed by 2-digit month and 2-digit day b12 Character of sample A Single sample (e.g., hand specimen, grab sample) typical of a larger body or population at the sample site. U.S. Geological Survey Open-File Report 93-533. B Single sample (e.g., hand specimen, grab sample) atypical of a larger body or population from which the sample was taken. (Sample was selected for some special attribute and is not intended to be typical. U.S. Geological Survey Open-File Report 93-533. C Single sample (e.g., hand specimen, grab sample); typicality unknown or uncertain. U.S. Geological Survey Open-File Report 93-533. D Composite sample (e.g., chip sample) typical of a larger body or population at the sample site. U.S. Geological Survey Open-File Report 93-533. E Composite sample (e.g., chip sample) atypical of the larger body or population from which the sample was taken. (Sample was selected for some special attribute and is not intended to be typical.) U.S. Geological Survey Open-File Report 93-533. F Composite sample (e.g., chip sample); typicality unknown or uncertain. U.S. Geological Survey Open-File Report 93-533. G Channel sample typical of a larger body or population at the sample site. U.S. Geological Survey Open-File Report 93-533. H Channel sample atypical of the larger body or population from which the sample was taken. (Sample was selected for some special attribute and is not intended to be typical.) U.S. Geological Survey Open-File Report 93-533. I Channel sample; typicality unknown or uncertain. U.S. Geological Survey Open-File Report 93-533. J Single, composite, channel, or any other type sample processed in the field or laboratory (e.g., panned concentrate, mineral separate, purified, leached, ashed, evaporated, etc.) typical of a larger body or population at the sample site. U.S. Geological Survey Open-File Report 93-533. K Single, composite, channel, or any other type sample processed in the field or laboratory (e.g., panned concentrate, mineral separagte, purified, leached, ashed, evaporated, etc.) atypical of the larger body or population from which the sample was taken. (Sample was selected for some special attribute and is not intended to be typical.) U.S. Geological Survey Open-File Report 93-533. L Single, composite, channel, or any other type sample processed in the field or laboratory (e.g., panned concentrate, mineral separate, purified, leached, ashed, evaporated, etc.) whose typicality is unknown or uncertain. U.S. Geological Survey Open-File Report 93-533. X Other type of sample typical of a larger body or population at the sample site. U.S. Geological Survey Open-File Report 93-533. Y Other type of sample atypical of the larger body or population from which the sample was taken. (Sample was selected for some special attribute and is not intended to by typical.) U.S. Geological Survey Open-File Report 93-533. Z Other type of sample whose typicality is unknown or uncertain. U.S. Geological Survey Open-File Report 93-533. b13 Source of sample A Natural outcrop (or surface layer) U.S. Geological Survey Open-File Report 93-533. B Road cut U.S. Geological Survey Open-File Report 93-533. C Float U.S. Geological Survey Open-File Report 93-533. D Open pit mine or quarry U.S. Geological Survey Open-File Report 93-533. E Prospect pit U.S. Geological Survey Open-File Report 93-533. F Underground mine U.S. Geological Survey Open-File Report 93-533. G Mine dump U.S. Geological Survey Open-File Report 93-533. H Mill product (smelter, tailings) U.S. Geological Survey Open-File Report 93-533. I Refinery product U.S. Geological Survey Open-File Report 93-533. J Drill core or auger sample U.S. Geological Survey Open-File Report 93-533. K Drill cutting, sludge U.S. Geological Survey Open-File Report 93-533. L Produced from well (oil, water, etc.) U.S. Geological Survey Open-File Report 93-533. M marine U.S. Geological Survey Open-File Report 93-533. Z Other U.S. Geological Survey Open-File Report 93-533. b20 Nature of material U.S. Geological Survey Open-File Report 93-533. 1 Gravel U.S. Geological Survey Open-File Report 93-533 2 Sand U.S. Geological Survey Open-File Report 93-533 3 Silt U.S. Geological Survey Open-File Report 93-533 4 Clay U.S. Geological Survey Open-File Report 93-533 5 Mud (silt and/or clay) U.S. Geological Survey Open-File Report 93-533 6 Ooze U.S. Geological Survey Open-File Report 93-533 7 Marl U.S. Geological Survey Open-File Report 93-533 8 Precipitate U.S. Geological Survey Open-File Report 93-533 9 Peat U.S. Geological Survey Open-File Report 93-533 b21 and b22 Modifiers for nature of material given in b20. U.S. Geological Survey Open-File Report 93-533. A Laminated U.S. Geological Survey Open-File Report 93-533 B Massive U.S. Geological Survey Open-File Report 93-533 C Clastic U.S. Geological Survey Open-File Report 93-533 D Bioclastic U.S. Geological Survey Open-File Report 93-533 E Concretionary U.S. Geological Survey Open-File Report 93-533 F Nodular U.S. Geological Survey Open-File Report 93-533 G Oolitic U.S. Geological Survey Open-File Report 93-533 H Pelletal J Sandy U.S. Geological Survey Open-File Report 93-533 K Silty U.S. Geological Survey Open-File Report 93-533 L Clayey U.S. Geological Survey Open-File Report 93-533 M Calcareous U.S. Geological Survey Open-File Report 93-533 N Dolomitic U.S. Geological Survey Open-File Report 93-533 P Bentonitic U.S. Geological Survey Open-File Report 93-533 Q Ferruginous U.S. Geological Survey Open-File Report 93-533 R Manganiferous U.S. Geological Survey Open-File Report 93-533 S Carbonaceous (organic) U.S. Geological Survey Open-File Report 93-533 T Glauconitic U.S. Geological Survey Open-File Report 93-533 U Arkosic U.S. Geological Survey Open-File Report 93-533 V Lithic U.S. Geological Survey Open-File Report 93-533 W Micaceous U.S. Geological Survey Open-File Report 93-533 X Phosphatic U.S. Geological Survey Open-File Report 93-533 Y Siliceous U.S. Geological Survey Open-File Report 93-533 1 Cherty U.S. Geological Survey Open-File Report 93-533 2 Tuffaceous U.S. Geological Survey Open-File Report 93-533 3 Volcanic U.S. Geological Survey Open-File Report 93-533 4 Zeolitic U.S. Geological Survey Open-File Report 93-533 5 Petroliferous U.S. Geological Survey Open-File Report 93-533 6 Sulfatic (gypsum, anhydrite, etc.) U.S. Geological Survey Open-File Report 93-533 7 Chloridic (halite, sylvite, etc.) U.S. Geological Survey Open-File Report 93-533 8 Carbonatic (nahcolite, etc.) U.S. Geological Survey Open-File Report 93-533 Z Other U.S. Geological Survey Open-File Report 93-533 b23 Environment of deposition U.S. Geological Survey Open-File Report 93-533. A Stream deposit U.S. Geological Survey Open-File Report 93-533 B Lake deposit U.S. Geological Survey Open-File Report 93-533 C Talus or colluvium U.S. Geological Survey Open-File Report 93-533 D Alluvial van deposit U.S. Geological Survey Open-File Report 93-533 E Dune sand or loess U.S. Geological Survey Open-File Report 93-533 F Swamp deposit U.S. Geological Survey Open-File Report 93-533 G Spring deposit U.S. Geological Survey Open-File Report 93-533 H Residual or lag deposit U.S. Geological Survey Open-File Report 93-533 I Glacial deposit U.S. Geological Survey Open-File Report 93-533 J Other type of continental deposit U.S. Geological Survey Open-File Report 93-533 K Beach deposit U.S. Geological Survey Open-File Report 93-533 L Tidal flat deposit U.S. Geological Survey Open-File Report 93-533 M Offshore bar or spit U.S. Geological Survey Open-File Report 93-533 N Deltaic deposit U.S. Geological Survey Open-File Report 93-533 P Lagoonal deposit U.S. Geological Survey Open-File Report 93-533 Q Estuarine deposit U.S. Geological Survey Open-File Report 93-533 R Other type of marginal marine deposit U.S. Geological Survey Open-File Report 93-533 S Marine terrace deposit U.S. Geological Survey Open-File Report 93-533 T Nearshore marine deposit U.S. Geological Survey Open-File Report 93-533 U Deep sea deposit U.S. Geological Survey Open-File Report 93-533 V Other type of marine deposit U.S. Geological Survey Open-File Report 93-533 Z Other U.S. Geological Survey Open-File Report 93-533 TOA Type of analysis (Chemical method by which the sample was analyzed) U.S. Geological Survey Digital Data Series DDS-47 SQ Semi-quantitative spectro-analysis U.S. Geological Survey Digital Data Series DDS-47 WX Wavelength dispersive X-ray fluorescence analysis U.S. Geological Survey Digital Data Series DDS-47 IN Instrumental neutron activation analysis U.S. Geological Survey Digital Data Series DDS-47 QS Quantitative spectro-analysis U.S. Geological Survey Digital Data Series DDS-47 CH Miscellaneous chemical methods U.S. Geological Survey Digital Data Series DDS-47 DN Delayed neutron analysis for U and Th U.S. Geological Survey Digital Data Series DDS-47 AA Flame and graphite furnace atomic absorption analysis U.S. Geological Survey Digital Data Series DDS-47 EX Energy dispersive X-ray fluorescense analysis U.S. Geological Survey Digital Data Series DDS-47 MS Inductively coupled plasma - mass spectrometry U.S. Geological Survey Digital Data Series DDS-47 FE-PPM Iron concentration in parts per million (ppm) U.S. Geological Survey Digital Data Series DDS-47. MG-PPM Magnesium concentration in parts per million (ppm) U.S. Geological Survey Digital Data Series DDS-47. CA-PPM Calcium concentration in parts per million (ppm) U.S. Geological Survey Digital Data Series DDS-47. TI-PPM Titanium concentration in parts per million (ppm) U.S. Geological Survey Digital Data Series DDS-47. B-PPM Boron concentration in parts per million U.S. Geological Survey Digital Data Series DDS-47. BA-PPM Barium concentration in parts per million (ppm) U.S. Geological Survey Digital Data Series DDS-47. CO-PPM Cobalt concentration in parts per million (ppm) U.S. Geological Survey Digital Data Series DDS-47. CR-PPM Chromium concentration in parts per million (ppm) U.S. Geological Survey Digital Data Series DDS-47. CU-PPM Copper concentration in parts per million (ppm) U.S. Geological Survey Digital Data Series DDS-47. LA-PPM Lanthanum concentration in parts per million U.S. Geological Survey Digital Data Series DDS-47. NI-PPM Nickel concentration in parts per million (ppm) U.S. Geological Survey Digital Data Series DDS-47. PB-PPM Lead concentration in parts per million (ppm) U.S. Geological Survey Digital Data Series DDS-47. SR-PPM Strontium concentration in parts per million U.S. Geological Survey Digital Data Series DDS-47. V-PPM Vanadium concentration in parts per million (ppm) U.S. Geological Survey Open-File Report 93-533. Y-PPM Yttrium concentration in parts per million (ppm) U.S. Geological Survey Open-File Report 93-533. ZR-PPM Zirconium concentration in parts per million (ppm) U.S. Geological Survey Open-File Report 93-533. SI-PPM Silicon concentration in parts per million (ppm) U.S. Geological Survey Open-File Report 93-533. AL-PPM Aluminum concentration in parts per million (ppm) U.S. Geological Survey Open-File Report 93-533. NA-PPM Sodium concentration in parts per million (ppm) U.S. Geological Survey Open-File Report 93-533. K-PPM Potassium concentration in parts per million (ppm) U.S. Geological Survey Open-File Report 93-533. BE-PPM Beryllium concentration in parts per million U.S. Geological Survey Open-File Report 93-533. AG-PPM Silver concentration in parts per million (ppm) U.S. Geological Survey Open-File Report 93-533. AS-PPM Arsenic concentration in parts per million U.S. Geological Survey Open-File Report 93-533. AU-PPM Gold concentration in parts per million U.S. Geological Survey Open-File Report 93-533. BI-PPM Bismuth concentration in parts per million (ppm) U.S. Geological Survey Open-File Report 93-533. CD-PPM Cadmium concentration in parts per million (ppm) U.S. Geological Survey Open-File Report 93-533. MO-PPM Molybdenum concentration in parts per million (ppm) U.S. Geological Survey Open-File Report 93-533. NB-PPM Niobium concentration in parts per million (ppm) U.S. Geological Survey Open-File Report 93-533. SB-PPM Antimony concentration in parts per million (ppm) U.S. Geological Survey Open-File Report 93-533. SN-PPM Tin concentration in parts per million (ppm) U.S. Geological Survey Open-File Report 93-533. TE-PPM Tellurium concentration in parts per million (ppm) U.S. Geological Survey Open-File Report 93-533. W-PPM Tungsten concentration in parts per million (ppm) U.S. Geological Survey Open-File Report 93-533. ZN-PPM Zinc concentration in parts per million (ppm) U.S. Geological Survey Open-File Report 93-533. P-PPM Phosphorus concentration in parts per million (ppm) U.S. Geological Survey Open-File Report 93-533. CE-PPM Cerium concentration in parts per million (ppm) U.S. Geological Survey Open-File Report 93-533. LI-PPM Lithium concentration in parts per million (ppm) U.S. Geological Survey Open-File Report 93-533. TL-PPM Thallium concentration in parts per million (ppm) U.S. Geological Survey Open-File Report 93-533. HG-PPM Mercury concentration in parts per million (ppm) U.S. Geological Survey Open-File Report 93-533. SE-PPM Selenium concentration in parts per million (ppm) U.S. Geological Survey Open-File Report 93-533. TH-PPM Thorium concentration in parts per million (ppm) U.S. Geological Survey Open-File Report 93-533. U-PPM Uranium concentration in parts per million (ppm) U.S. Geological Survey Open-File Report 93-533. S-PPM Sulfur concentration in parts per million (ppm) U.S. Geological Survey Open-File Report 93-533. PD-PPM Paladium concentration in parts per million (ppm) U.S. Geological Survey Open-File Report 93-533. PT-PPM Platinum concentration in parts per million (ppm) U.S. Geological Survey Open-File Report 93-533. RH-PPM Rhodium concentration in parts per million (ppm) U.S. Geological Survey Open-File Report 93-533. RU-PPM Ruthenium concentration in parts per million (ppm) U.S. Geological Survey Open-File Report 93-533. ORG-C-PPM Organic carbon concentration in parts per million (ppm) U.S. Geological Survey Open-File Report 93-533. FEO-PPM Ferrous iron oxide concentration in parts per million (ppm) U.S. Geological Survey Open-File Report 93-533. F-PPM Fluorine concentration in parts per million (ppm) U.S. Geological Survey Open-File Report 93-533. RB-PPM Rubidium concentration in parts per million (ppm) U.S. Geological Survey Open-File Report 93-533. Smith, David B. U.S. Geological Survey Research Geologist Mailing address

Box 25046, Denver Federal Center, MS 973

Denver Colorado 80025 United States 1-303-236-1849 1-303-236-3200 dsmith@usgs.gov These data are released on the condition that neither the U.S. Geological Survey (USGS) nor the United States Government may be held liable for any damages resulting from authorized or unauthorized use. The USGS provides these data "as is" and makes no guarantee or warranty concerning the accuracy of information contained in the data. The USGS further makes no warranties, either expressed or implied as to any other matter, whatsoever, including, without limitation, the condition of the product, or its fitness for any particular purpose. The burden for determining fitness for use lies entirely with the user. ESRI shapefile 1.0 Geochemical data for sediment samples unzip 6.3 megabytes http://tin.er.usgs.gov/pluto/sediment/plutosed.zip none 20000112 Smith, David B. U.S. Geological Survey Research Geologist Mailing address

Box 25046, Denver Federal Center, MS 973

Denver Colorado 80225 United States 1-303-236-1849 1-303-236-3200 dsmith@usgs.gov Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998