Stratigraphic cross sections and correlation of lignites in the Sentinel Butte member and upper part of the Tongue River member of the Fort Union Formation between Amidon and Fryburg, North Dakota
Keyword(s):
Keyword(s):
1983 ◽
Keyword(s):
Keyword(s):
2006 ◽
Vol preprint
(2008)
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pp. 1
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