| Online link | https://doi.org/10.3133/ds509 |
|---|---|
| Description | Chemical analysis of 47,478 samples of various geological materials to facilitate geologic mapping, petrologic studies, mineral resource assessment, and similar regional environmental assessements. |
| Originators | Granitto, Matthew, DeWitt, Ed H., Klein, Terry L. |
| Publication | U.S. Geological Survey Data Series 509 |