[The Marshall group : a series of researches on the American strata embraced between the Hamilton group and the carboniferous conglomerate / by Alexander Winchell]. [1862-1870]

ArchivalResource

[The Marshall group : a series of researches on the American strata embraced between the Hamilton group and the carboniferous conglomerate / by Alexander Winchell]. [1862-1870]

12 v. in 1 : ill., map ; 24 cm.

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SNAC Resource ID: 7270601

Minnesota Historical Society Library

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Winchell, Alexander, 1824-1891

http://n2t.net/ark:/99166/w6jd508d (person)

The Michigan Geological Survey was created by Public Act 20 of 1837. Its purpose was to conduct a geological and mineralogical survey of the state. The state legislature appointed Douglass Houghton the first state geologist (1837). In 1921, the state legislature established the Department of Conservation, and the Michigan Geological Survey became part of that department (Public Act 17 of 1921). The Department of Conservation established the Geological Survey Division circa 1947. In 1968, the dep...