OFR 97-492: Choteau Quadrangle NURE HSSR Study
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[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.
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
Water Samples
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.
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
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.
None found.
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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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