OFR 97-492: Juneau Quadrangle NURE HSSR Study
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[See History of NURE HSSR Program for a summary of the entire program.]
Totals of 394 sediment and 399 water samples were collected from 399 locations in the Juneau Quadrangle as part of the Los Alamos Scientific Laboratory (LASL) Juneau Quadrangle NURE Hydrogeochemical and Stream Sediment Reconnaissance (HSSR) study. Samples were collected during September of 1979. The sediment samples were analyzed by LASL for uranium and up to 43 additional elements, but LASL was unable to complete the Juneau quadrangle data release report. The sediment data were sent to and released by the Bendix Field Engineering Corporation in Grand Junction, Colorado only as a microfiche GJBX-90(82) report. This report does not give any details on the sample collection or analytical methods used on these samples.
LASL sent the 399 water samples from the Juneau quadrangle to the Oak Ridge Gaseous Diffusion Plant (ORGDP) for analysis. These samples were analyzed for uranium and up to 27 additional elements and the results were released by ORGDP in the GJBX-159(81) report.
The following is a list of NURE sample types collected within the Juneau quadrangle.
|Sediment Sample Type||Number of Samples||Water Sample Type||Number of Samples|
|Total Sediments||394||Total Waters||399|
These Juneau quadrangle samples were analyzed by one or more of the following methods:
The data in the NEW-FORMAT NURE data files consist of 394 reformatted sediment records from the GJBX-90(82) report and 399 reformatted water records from the GJBX-159(81) report. Any changes in the data or problems found are noted in the REFORMAT comment field.
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).
Juneau Quadrangle Sediment Data - 394 records
Juneau Quadrangle Water Data - 399 records
Water samples from this quadrangle are reported to have been acidified with nitric acid but NOT filtered in the field.
The ORGDP fluorometric procedure for uranium required each water sample to be centrifuged before taking an aliquot for analysis. It is not clear whether water samples analyzed by emission spectrometry were also centrifuged prior to analysis.
Values of 99999 are as reported in the GJBX publications and may reflect values above determination limits.
LASL compiled all of the regional HSSR data from Alaskan NURE studies and produced a report [GJBX-32(83] that graphically displays the distribution of selected elements for most of the State. No additional geochemical data were released with this report.
Back to Alaska 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 (firstname.lastname@example.org)
Version 1.20: August 07, 2000
Version 1.30: September 11, 2001
Version 1.40: January 13, 2006
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