Up from the Depths: Underwater Recovery of Agates from Lake Superior, Keweenaw County, Michigan.
| Autor: | Rosemeyer, Tom |
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| Zdroj: | Rocks & Minerals; Jul/Aug2014, Vol. 89 Issue 4, p346-353, 8p |
| Abstrakt: | The article offers information on the recovery of agates from Lake Superior in Keweenaw County, Michigan. Topics discussed include the history of collecting the agates in the Lake Shore Traps which started in 1920s, the description of diver Bob Barron to agates based on his observations, and the recovery of the two types of agates such as the opaque and glassy. |
| Databáze: | Complementary Index |
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