Mineral Resources On-Line Spatial Data
National Geochemical Survey
NGS Record Numbers
The REC_NO field contains several types of data:
- NURE Record numbers. These are 7-digit numbers, identical to those given by Smith (1997c). Multiple records in the NGS may contain the same value if the same NURE sample was reanalyzed more than once.
- Modified NURE Record numbers. These values begin with the character "S", followed by a 7-digit number. The number corresponds to the NURE record number as described above. The "S" indicates that the sample was sieved prior to analysis. Analyses of these samples were therefore done on a different sample medium than was the original NURE analysis. Click here for more information.
- NGS Record numbers. These record numbers consist of two letters followed by a unique 6-digit sequence number. The letters are abbreviations for the data category to which the record belongs (given in the "Category" field), as follows:
U.S. Department of the Interior, U.S. Geological Survey
This page is part of U.S. Geological Survey Open-File Report 2004-1001
Maintained by Jeff Grossman
Last modified: 09:04:06 Wed 14 Mar 2012
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