OFR 97-492: Palestine Quadrangle NURE HSSR Study
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[See History of NURE HSSR Program for a summary of the entire program.]
Texas
Subcontractors for the Savannah River Laboratory (SRL) collected at least 279 stream-sediment samples within 4 counties along the eastern border of Texas as part of the NURE Hydrogeochemical and Stream Sediment Reconnaissance (HSSR) program. The sampling effort was completed between August and October of 1978 and included portions of the Palestine, Alexandria, Beaumont, and Lake Charles 1:250,000-scale quadrangles. (A total of 81 stream-sediment samples were collected within the Palestine quadrangle.) These samples were sent to SRL for analysis of uranium and 16 additional elements. SRL was only able to analyze 26 of the 279 stream-sediment samples collected in Texas; this includes 6 sediment samples within the Palestine quadrangle. The analytical and site location data for all Texas sediment samples were released as a separate file in the Arkansas, Louisiana, Mississippi, Missouri, Oklahoma, and Texas Data Report [GJBX-104(82)].
Louisiana
Subcontractors for the Savannah River Laboratory (SRL) collected at least 1,017 stream-sediment samples within 15 parishes of central Louisiana as part of the NURE Hydrogeochemical and Stream Sediment Reconnaissance (HSSR) program. The sampling effort was completed between August and October of 1978 and included portions of the Alexandria, Baton Rouge, Jackson, Lake Charles, Natchez, Palestine, Shreveport, and Tyler 1:250,000-scale quadrangles. (Only 1 sample was collected within the Palestine quadrangle.) These sediment samples were sent to SRL for analysis of uranium and 16 additional elements. SRL was able to analyze only 28 Louisiana stream-sediment samples; none of the SRL Louisiana samples from the Palestine quadrangle were analyzed. The analytical and site location data for all Louisiana sediment samples were released as a separate file in the Arkansas, Louisiana, Mississippi, Missouri, Oklahoma, and Texas Data Report [GJBX-104(82)].
SRL: Palestine Quadrangle
SRL did not release a separate report for the Palestine quadrangle.
ORGDP: Alexandria, Natchez, and Palestine Quadrangles
SRL sent several Texas and Louisiana sediment samples to the Oak Ridge Gaseous Diffusion Plant (ORGDP) for analysis of uranium and 31 additional elements. ORGDP released the analytical data for 861 samples in the Alexandria, Natchez, and Palestine Quadrangles GJBX-67(82) Data Report. This report includes data for 82 sediment samples from the Palestine quadrangle. The site coding information for this data set was summarized in the GJBX-51(82) report.
Gold Analyses
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.
ORGDP: Palestine Quadrangle
The Oak Ridge Gaseous Diffusion Plant (ORGDP) collected 577 stream-sediment and 714 water samples in the Palestine quadrangle as part of Palestine Quadrangle NURE Hydrogeochemical and Stream Sediment Reconnaissance (HSSR) study. All field sampling was conducted under contract with the ORGDP by personnel of Geochemex, Inc. of Memphis, Tennessee between October and December of 1978. These samples were analyzed by the ORGDP for uranium and other elements. The analytical data were released as the Palestine Quadrangle NURE HSSR Study GJBX-92(79) Report. (Note: Four Palestine quadrangle well-water sample records found only in the digital data files have coordinates that plot slightly within the adjacent Alexandria quadrangle.)
Summary Tables
Because of the various laboratories and analytical methods used, some samples may have been analyzed once, twice, or not at all. The following table summarizes the analysis of Palestine quadrangle samples.
Laboratory Analysis | Sediments | Waters |
---|---|---|
Only SRL | 0 | 0 |
Only ORGDP (on SRL samples) | 76 | 0 |
Only ORGDP (on ORGDP samples) | 577 | 714 |
Both SRL and ORGDP (2 records needed) | 6 | 0 |
None | 0 | 0 |
Total Samples | 659 | 714 |
Total Data Records | 665 | 714 |
The following is a list of all sample types collected and reported for NURE studies in the Palestine quadrangle.
Sediment Sample Type | Number of Samples | Water Sample Type | Number of Samples |
---|---|---|---|
Wet Streams | 490 | Wells | 707 |
Dry Streams | 169 | Springs | 2 |
Other | 5 | ||
Total Sediments | 659 | Total Waters | 714 |
These Palestine quadrangle samples were analyzed by one or more of the following methods:
Sediment Samples
Water Samples
Sediment Records
The Palestine quadrangle sediment data consist of records from the Texas and Louisiana portions of the SRL Arkansas, Louisiana, Mississippi, Missouri, Oklahoma, and Texas GJBX-104(82) Data Report combined with records from the ORGDP Palestine, Alexandria, and Natchez Quadrangles GJBX-67(82) Data Report plus reformatted records from the ORGDP Palestine Quadrangle NURE HSSR study GJBX-92(79) report. When combining sample records, site descriptive information and coordinates were compared for all corresponding records. The following problems were found and addressed during the comparison and reformatting stages for the Palestine quadrangle sediment data:
Water Records
The Palestine quadrangle water data consist of reformatted records from the ORGDP Palestine Quadrangle NURE HSSR study GJBX-92(79) report. The following problems were found and addressed during the comparison and reformatting stages for the Palestine quadrangle water 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 web sites, 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).
Palestine Quadrangle Sediment Data - 665 records
Palestine Quadrangle Water Data - 714 records
In the eastern United States, SRL collected samples primarily by county or parish. Often, not all counties or parishes within a quadrangle were completely sampled. Sample coverage in the Palestine quadrangle is limited to the De Soto Parish in Louisiana, and to Jasper, Sabine, and Shelby Counties in Texas. These counties and parish are found only along the eastern border of the Palestine quadrangle. The laboratory and analytical methods used also may vary by county such that adjacent counties often have very different analytical coverages.
Most ORGDP water samples were reportedly collected in the field without any filtering or acidification. In the Palestine quadrangle, 8 water samples were filtered in the field through a 0.45 micron membrane filter. (See the SAMPTYP coding explanation in the On-Line Manual for USGS-Reformatted NURE HSSR Data Files for descriptions of different Sample Types). However, all of the samples were filtered later in the laboratory through a 0.45 micron membrane filter before analysis. Therefore, the samples were not true "untreated water" samples and the analytical data may not be directly comparable for other quadrangle water samples of the same SAMPTYP when collected by a different laboratory. Since this was the standard procedure for Oak Ridge, water data from other Oak Ridge quadrangles should be comparable.
For all ORGDP samples, latitude-longitude coordinates were reported in the original data files, as decimal degrees, to only 3 decimal places. Therefore, the precision of these coordinates is limited to +/- 0.001 degrees or +/- 3.6 seconds. This translates to a minimum precision of +/- 364 feet (111 m) for latitude values and between +/- 317 feet (97 m) to +/- 300 feet (91 m) for longitude values (calculated at latitudes of 30° and 35°N, respectively.)
Palestine Quadrangle NURE Summary
A summary evaluation of the Palestine quadrangle was prepared by the Bureau of Economic Geology at the University of Texas at Austin, under subcontract to Bendix Field Engineering Corporation [PGJ/F-105(82)]. Totals of 950 substrate, 404 soil, 120 stream sediment, and 51 water samples were collected and analyzed for uranium by fluorometry and for 29 additional elements by an unspecified method. Results from these analyses show that two environments in the Palestine quadrangle are favorable for uranium deposition. These environments include potential uranium deposits of modified Texas roll-type in fluvial channels and associated facies of the Yegua Formation, and potential occurrences along mineralization fronts associated with Elkhart Graben and Mount Enterprise fault system. Data for this study were only found in the tables on microfiche accompanying the report.
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Frequently Asked Questions Concerning NURE HSSR Data
Home Page: USGS National Geochemical Database - NURE HSSR data
Page written by Bryan G. Moravec and Steven M. Smith.
Contact: Steven M. Smith (smsmith@usgs.gov)
Version 1.20: August 07, 2000
Version 1.30: September 11, 2001
Version 1.41: February 23, 2006
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