The Subsurface Devonian Lithostratrigrapy of Southeastern Iowa, July 1982

This is the first of a two-part report dealing primarily with the Devonian strata in the subsurface of extreme southeastern Iowa. In this portion, the 1ithostratigraphic relationships between three cores from Des Moines and Lee Counties are discussed (see fig. 1). The second part of this report will be concerned primarily with the biostratigraphic aspects of the examined cores