Online link | https://doi.org/10.3133/ds801 |
---|---|
Description | Systematic geochemical and mineralogical survey of soil horizons analyzed using a consistent set of methods, sample spacing 1 per 1,600 sq km. |
Originators | Smith, David B., Cannon, William F., Woodruff, Laurel G., Solano, Federico, Kilburn, James E., Fey, David L. |
Publication | U.S. Geological Survey Data Series 801 |