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<p>Sedimentology<br />Formations (Geology) -- Missouri<br />Formations (Geology) -- Illinois<br />Geology
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Sedimentology Of The Hannibal Formation In Northeastern Missouri And Western Illinois, Michael Harry Deming
Sedimentology Of The Hannibal Formation In Northeastern Missouri And Western Illinois, Michael Harry Deming
Masters Theses
"The Hannibal Formation (Kinderhookian) occurring in northeastern Missouri and western Illinois is a fine-grained, terrigenous, sedimentary unit which can be divided into an upper and a lower portion, based on lithology. The upper portion consists of alternating coarse and argillaceous, fine siltstone units, while the lower portion consists of a silty mudstone with an occasional thin siltstone unit. At the extreme western margin of the formation, near where the Hannibal almost pinches out, the formation consists entirely of a silty claystone. Extending southward along the study area, the coarse siltstone units of the upper Hannibal become thinner, and eventually pinch …