OFR 97-492: Brunswick Quadrangle NURE HSSR Study
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>> Pubs Warehouse > OF 97-492 > State Coverage > Brunswick Quadrangle
[See History of NURE HSSR Program for a summary of the entire program.]
Georgia
Subcontractors for the Savannah River Laboratory (SRL) collected at least 6,092 stream-sediment, 14 surface-water, and 5,990 ground-water samples within 142 counties from the northern two-thirds of Georgia as part of the NURE Hydrogeochemical and Stream Sediment Reconnaissance (HSSR) program. The sediment samples were collected during June - December 1976, April 1977, and April - September 1978, and water samples were collected during January - December 1977 and March - November 1978. Sample coverage included portions of the Athens, Atlanta, Augusta, Brunswick, Dothan, Greenville, Macon, Phenix City, Rome, Savannah, Valdosta, and Waycross 1:250,000-scale quadrangles. (A total of 55 stream-sediment and 236 ground-water samples were collected within the Brunswick quadrangle.) These samples were sent to SRL for analysis of uranium and additional elements (16 in sediments and 9 in waters). SRL was able to analyze 5,958 sediments and 5,989 waters from Georgia; this includes 55 sediment and 235 water samples from the Brunswick quadrangle. The analytical and site location data for all Georgia samples were released in the Alabama and Georgia Data Report [GJBX-403(81)].
SRL sent 2,956 sediment samples from Georgia to an unnamed contract laboratory for "Supplemental Analyses." Supplemental analytical determinations for up to 23 elements were reported for 2,951 of these samples in the Alabama and Georgia Data Report [GJBX-403(81)]. The digital data file accompanying this report does not include Supplemental Analyses for any Georgia sediment samples within the Brunswick quadrangle.
SRL: Dothan, Waycross, and Brunswick Quadrangles
SRL released a separate quadrangle report for the Dothan, Waycross, and Brunswick NTMS quadrangles, which includes data for 201 stream-sediment and 1,224 ground-water samples. (Although it was not mentioned in the report title, data were also included for 27 ground-water samples from the Valdosta quadrangle.) This report includes data for 54 stream-sediment and 233 ground-water samples within the Brunswick quadrangle. With minor differences, these sample data are the same as the those for corresponding samples found in the state reports. SRL released the analytical data as the Dothan, Waycross, and Brunswick Quadrangles GJBX-27(81) Data Report (Abbreviated). The site coding information for this data set is summarized within the text of this 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.
Summary Tables
Because of the various laboratories and analytical methods used, some SRL samples may have been analyzed once, twice, or not at all. The following table summarizes the analysis of Brunswick quadrangle samples.
Laboratory Analysis | Sediments | Waters |
---|---|---|
Only SRL | 55 | 235 |
Both SRL and Supplemental Labs | 0 | 0 |
None | 0 | 1 |
Total Samples | 55 | 236 |
Total Data Records | 55 | 236 |
The following is a list of all sample types collected and reported for NURE studies in the Brunswick quadrangle.
Sediment Sample Type | Number of Samples | Water Sample Type | Number of Samples |
---|---|---|---|
Wet Streams | 55 | Wells | 234 |
Springs | 2 | ||
Total Sediments | 55 | Total Waters | 236 |
These Brunswick quadrangle samples were analyzed by one or more of the following methods:
Sediment Samples
Water Samples
Sediment Records
The Brunswick quadrangle sediment data consist of reformatted records from the Brunswick portion of the Dothan, Waycross, and Brunswick Quadrangles GJBX-27(81) Data Report. These records were compared with corresponding sample records from the Georgia portion of the Alabama and Georgia [GJBX-403(81)] Data Report. The following problems were found and addressed during the comparison and reformatting stages for the Brunswick quadrangle sediment data:
Water Records
The Brunswick quadrangle water data consist of reformatted records from the Brunswick portion of the Dothan, Waycross, and Brunswick Quadrangles GJBX-27(81) Data Report. These records were compared with corresponding sample records from the Georgia portion of the Alabama and Georgia [GJBX-403(81)] Data Report. The following problems were found and addressed during the comparison and reformatting stages for the Brunswick 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).
Brunswick Quadrangle Sediment Data - 55 records
Brunswick Quadrangle Water Data - 234 records
In the eastern United States, SRL collected samples primarily by county. Often, not all counties within a quadrangle were completely sampled. Sediment sample coverage in the Brunswick quadrangle is limited to Bryan, Chatham, Liberty, and Tattnall Counties in Georgia. Water sample coverage in the Brunswick quadrangle is limited to Brantley, Bryan, Chatham, Glynn, Liberty, Long, McIntosh, Pierce, Tattnall, and Wayne Counties in Georgia. These counties cover most of the land surface within the Brunswick quadrangle. The laboratory and analytical methods used also may vary by county such that adjacent counties often have very different analytical coverage.
One ground-water sample from Bryan County, Georgia within the Athens quadrangle was not analyzed by any of the various laboratories.
None found.
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Frequently Asked Questions Concerning NURE 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 1.30: September 11, 2001
Version 1.41: February 23, 2006
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