Choteau Quadrangle NURE HSSR Study

OFR 97-492: Choteau Quadrangle NURE HSSR Study

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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 1,562 sediment and 1,097 water samples were collected from the Choteau quadrangle between May and October 1978 as part of the Los Alamos Scientific Laboratory (LASL) Choteau Quadrangle NURE Hydrogeochemical and Stream Sediment Reconnaissance (HSSR) study. The sediment samples were analyzed by LASL for uranium and up to 43 additional elements and the sediment analytical data were released by Bendix Field Engineering Corp. in the GJBX-127(82) report (microfiche). The water samples were sent to the Oak Ridge Gaseous Diffusion Plant for uranium and multielement analyses and the water analytical data were released in the GJBX-370(81) report. (Note: Oak Ridge analyzed one stream water sample twice.)

The following is a list of sample types collected for the Choteau quadrangle study.

*Summary of Choteau quadrangle sample types.*
Sediment Sample Type	Number of Samples	Water Sample Type	Number of Samples
Wet Streams	1,295	Streams	1,022
Dry Streams	196	Wells	29
Wet Springs	68	Springs	46
Dry Springs	2/td>
Wet Natural Ponds	1
Total Sediments	1,562	Total Waters	1,097

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

Sediment Samples

LA1: Los Alamos Delayed-Neutron Counting Analysis of sediments for U.
LA3: Los Alamos Energy Dispersive X-Ray Fluorescence Analysis of sediments for Ag, As, Bi, Cd, Cu, Nb, Ni, Pb, Se, Sn, W, and Zr.
LA5: Los Alamos Neutron Activation Analysis of sediments for Al, Au, Ba, Ca, Ce, Cl, Co, Cr, Cs, Dy, Eu, Fe, Hf, K, La, Lu, Mg, Mn, Na, Rb, Sb, Sc, Sm, Sr, Ta, Tb, Th, Ti, V, Yb, and Zn.

Water Samples

OR9-FL: Oak Ridge Fluorescence Spectroscopy Analysis of waters for U.
OR9-MS: Oak Ridge Mass Spectrometry Analysis of waters for U.
OR13: 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.)

Composition of the NEW-FORMAT NURE Data Files

The data in the NEW-FORMAT NURE data files consist of reformatted sediment records from the GJBX-127(82) report and reformatted water records from the GJBX-370(81) 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).

Choteau Quadrangle Sediment Data - 1,562 records
Choteau Quadrangle Water Data - 1,098 records

Notes for Data Users

The data in the water database includes stream samples collected by 2 different methods with respect to filtration and acidification (See the SAMPTYP coding explanation in the On-Line Manual for New-Format NURE HSSR Data Files for descriptions of different Sample Types. Analytical data may not be directly comparable for water samples collected by different methods.

Other NURE Geochemical Data for the Choteau Quadrangle

None found.

Choteau Quadrangle NURE Bibliography

Uranium Resource Evaluation Project, 1981, Hydrogeochemical and stream sediment reconnaissance basic data for Choteau quadrangle, Montana: Union Carbide Corporation, Nuclear Division, Oak Ridge Gaseous Diffusion Plant, Oak Ridge, Tenn., K/UR-382, U.S. Department of Energy, Grand Junction, Colo., GJBX-370(81), 109 p.
Zinkl, R.J., Shettel, D.L., Jr., Langfeldt, S.L., Hardy, L.C., D'Andrea, R.F., Jr., Minor, M.M., McInteer, C., Hansel, J.N., and Broxton, D.E., 1982, Uranium hydrogeochemical and stream sediment reconnaissance of the Choteau NTMS quadrangle, Montana: U.S. Department of Energy, Grand Junction, Colo., GJBX-127(82), 151 p.

Links Within Open-File Report 97-492

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

Page written by Steven M. Smith (smsmith@usgs.gov)
Version 1.00: September 11, 1998
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_chotau.htm Questions or Assistance: USGS Web Contact Page Last Modified: Wed Dec 7 16:11 EDT 2016

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)