|
Precambrian basement of the north Mid-Continent U.S.A.: a digital representation of the 1990 P.K. Sims map
Geologic units, structural features, drill hole locations, and structure contours |
Info |
|
Bedrock and soil geochemistry from Voyageurs National Park, Minnesota
Analyses to establish the background and baseline geochemistry for bedrock and soil in the region, and to determine terrestrial mercury sources and sinks in the park |
Info |
| Geologic map of the Ontonagon and part of the Wakefield 30' x 60' quadrangles, Michigan; a digital representation of Map I-2499 (1995) | Info |