| Online link | http://pubs.usgs.gov/of/1992/of92-353/ |
|---|---|
| Description | Geochemical data from 2560 stream sediment samples collected in Puerto Rico, 421 soil samples collected on Isla de Vieques, and 35 soil samples were collected on Isla de Culebra, analyzed by semiquantitative spectrographic methods. |
| Originators | Marsh, Sherman P. |
| Publication | U.S. Geological Survey Open-File Report 92-353 |