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National Geochemical Database—Reformatted Data from the National Uranium Resource Evaluation (NURE) Hydrogeochemical and Stream Sediment Reconnaissance (HSSR) Program

By Steven M. Smith
Version 1.40 (2006)

This page is currently being rewritten to the Version 1.41 format.

Brief History and Description of Data

[See History of NURE HSSR Program for a summary of the entire program.]

Totals of 1,706 sediment and 429 water samples were collected in the Pocatello quadrangle between September and December of 1979 as part of the Savannah River Laboratory (SRL) Pocatello Quadrangle NURE Hydrogeochemical and Stream Sediment Reconnaissance (HSSR) study. These samples were analyzed by SRL for uranium and other elements (16 additional elements in sediments and 9 in waters) and the analytical data were released in the Pocatello NURE HSSR quadrangle GJBX-161(80) report. The water samples were then sent to other laboratories including Oak Ridge Gaseous Diffusion Plant for "supplemental analyses." SRL did not release the supplemental analytical data, with results for 31 elements in waters, as a separate report.

In 1982, SRL released a summary report and data files for 50 quadrangles in the Western United States. This report, GJBX-132(82), contains both the SRL analytical data and the supplemental analytical data from the Pocatello quadrangle but the concentration values often differ from those reported in the GJBX-161(80) quadrangle report. The introduction section of the GJBX-132(82) summary report states:

"The data in the present report may not be identical to those reported previously. This is due to the use of different "scrub" procedures for the preparation of the data for release. The differences should be minor."

SRL analyses of light hydrocarbons (methane, ethane, propane, and butane) in ground waters were released in the GJBX-131(82) summary report for 44 western quadrangles and 3 eastern quadrangles within the United States. This report includes data for 368 of the Pocatello quadrangle ground water samples.

Data for gold analyses of sediments by SRL neutron activation were released in the GJBX-135(82) summary report. The introduction of that report states:

"This report contains previously unreported neutron-activation analyses of gold in sediment samples determined at SRL. These data were not included in the standard SRL NURE data reports because the gold spectrum was not measured in the original analytical procedure and the report format was designed without the gold analyses being included. Gold analyses became available as the analytical procedure was refined, but the report format was not modified to incorporate these data."

Only those sediment samples that had detectable concentrations of gold by neutron activation analysis were given in the GJBX-135(82) report. Sediment samples with concentrations below detection limits were not reported and can only be ascertained by identifying which samples were actually analyzed by neutron activation at SRL.

The following is a general listing of all sample types collected and reported for NURE studies in the Pocatello quadrangle. The actual number of records in the NEW-FORMAT NURE data files may be greater because of the multiple records needed to preserve all the data.

These Pocatello quadrangle samples were analyzed by one or more of the following methods:

Sediment Samples

• SR1: Savannah River Neutron Activation Analysis - Neutron Counting of sediments for U.
• SR2: Savannah River Neutron Activation Analysis of sediments for Al, Ce, Dy, Eu, Fe, Hf, La, Lu, Mn, Na, Sc, Sm, Th, Ti, V, and Yb. (Note: Au values were reported later for this method.)

Water Samples

• SR4: Savannah River Neutron Activation Analysis - Neutron Counting of waters for U.
• SR6: Savannah River Neutron Activation Analysis of waters for Al, Br, Cl, Dy, F, Mg, Mn, Na, and V.
• SR-HE: Savannah River Helium Analysis of waters.
• SR-GC: Savannah River Gas Chromatography of waters for light hydrocarbons.
• OR13: Supplemental Analyses by Oak Ridge Emission Spectrochemical Analysis of waters for Ag, Al, B, Ba, Be, Ca, Ce, Co, Cr, Cu, Fe, K, Li, Mg, Mn, Mo, Na, Ni, P, Sc, Si, Sr, Ti, V, Y, Zn, and Zr. (Note: Nb and Th may be included in this method.)
• OR17: Supplemental Analyses by Oak Ridge Atomic Absorption Spectroscopy Analysis of waters for As and Se.

Composition of the NEW-FORMAT NURE Data Files

The data in the NEW-FORMAT NURE data files consist of records from all of the above reports. In order to reduce the number of records, a decision was made to primarily use the data from the GJBX-132(82) western U.S. summary report. The rationale for choosing this data set was that (1) it represents a later compilation of the data and (2) it should be more consistent across quadrangle boundaries because of the common "scrubbing procedure." Every record was checked against the "equivalent" record in the earlier GJBX-161(80) quadrangle report and any major differences were noted in the REFORMAT comment field. These different but unused quadrangle report records were combined and saved as extra files which may be accessed below.

In the water data file the SRL analyses and supplemental analyses could NOT be combined because of overlapping determinations for 5 elements. Each water sample may therefore have 2 separate records - one for the SRL analysis and one for the supplemental analysis.

Hydrocarbon data from the GJBX-131(82) report were added to fields in the appropriate ground water records and this addition was noted for each record in the REFORMAT comment field.

Gold concentrations from the GJBX-135(82) report were added to the appropriate sediment records. A value of -0.01 (<0.01 ppm Au) was added to all other sediment samples determined to have been analyzed by SRL neutron activation. This value was chosen because 0.01 is the lowest reported gold concentration in the entire report.

Download The Data

The NURE HSSR data are now available online in two databases: The sediment database (also includes data for soils and some rocks) at http://tin.er.usgs.gov/nure/sediment/ and the water database at http://tin.er.usgs.gov/nure/water/. From these two websites, NURE HSSR data can be selected, examined, summarized, and downloaded by political boundaries (State and County), by quadrangle (1:250,000-scale, 1:100,000-scale, and 1:63,360-scale for Alaska or 1:24,000-scale for the Lower 48 States), and by hydrologic unit (drainage region, subregion, river basin, or sub-basin). Selected data can be downloaded as a dBase file, a shapefile, an HTML table, or ASCII text (tab- or comma-delimited).

Pocatello Quadrangle Sediment Data - 1,706 records
Pocatello Quadrangle Water Data - 846 records
Unused set of quadrangle sediment records - pocatlsx.dbf.gz
Unused set of quadrangle water records - pocatlwx.dbf.gz

Notes for Data Users

Many records contain analytical values with insignificant digits. Most data should only have 2 or 3 significant digits and differences after the second or third digit should be ignored.

Other NURE Geochemical Data for the Pocatello Quadrangle

A summary evaluation report was prepared for the Pocatello quadrangle by Charles S. Robinson and Associates, Inc. of Lakewood, Colorado [PGJ/F-076(82)]. Additional samples of 732 rocks, 97 sediments, and 92 waters were collected in the quadrangle to aid in the interpretation of uranium anomalies. All samples were analyzed for uranium oxide by fluorometry. In addition, 444 of the rock samples and 76 of the sediment samples were analyzed for up to 29 other elements by emission spectrometry. These data were released only as microfiche appendices accompanying the summary report.

Pocatello Quadrangle NURE Bibliography

• Cook, J.R., 1980, Pocatello 1° x 2° NTMS area, Idaho: E.I. du Pont de Nemours & Co., Savannah River Laboratory, Aiken, S.C., SRL Internal Doc. DPST-79-146-20, U.S. Department of Energy, Grand Junction, Colo., GJBX-161(80), 45 p.
• Cook, J.R., and Fay, W.M., 1982, Data report: Western United States: E.I. du Pont de Nemours & Co., Savannah River Laboratory, Aiken, S.C., SRL Internal Doc. DPST-81-146-28, U.S. Department of Energy, Grand Junction, Colo., GJBX-132(82), 33 p.
• Dromgoole, E.L., 1982, Report of analyses for light hydrocarbons in ground water: E.I. du Pont de Nemours & Co., Savannah River Laboratory, Aiken, S.C., SRL Internal Doc. DPST-81-141-19, U.S. Department of Energy, Grand Junction, Colo., GJBX-131(82), 14 p.
• Fay, W.M., and Cook, J.R., 1982, Gold analyses by neutron activation from SRL NURE samples: E.I. du Pont de Nemours & Co., Savannah River Laboratory, Aiken, S.C., SRL Internal Doc. DPST-81-141-38, U.S. Department of Energy, Grand Junction, Colo., GJBX-135(82), 45 p.
• Gallant, W.A., 1982, National Uranium Resource Evaluation, Pocatello Quadrangle, Idaho: Charles S. Robinson and Assoc., Inc., U.S. Department of Energy, Grand Junction, Colo., PGJ/F-076(82), 30 p.

Links Within Open-File Report 97-492

Back to Idaho NURE data
Back to Utah NURE data
Back to Nevada NURE data
Frequently Asked Questions Concerning NURE HSSR Data
Home Page: USGS National Geochemical Database - NURE HSSR data

Page written by Andrew W. Holt and Steven M. Smith
Contact: Steven M. Smith (smsmith@usgs.gov)
Version 1.10: July 29, 1999
Version 1.20: August 07, 2000
Version 1.30: September 11, 2001
Version 1.40: January 13, 2006

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U.S. Department of the Interior | U.S. Geological Survey URL: https://pubsdata.usgs.gov/pubs/of/1997/ofr-97-0492/quad/q_pocatl.htm Questions or Assistance: USGS Web Contact Page Last Modified: Wed Dec 7 16:14 EST 2016