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The Contributions Of J. A. Udden To An Understanding Of Iowa Geology, Richard C. Anderson
The Contributions Of J. A. Udden To An Understanding Of Iowa Geology, Richard C. Anderson
Journal of the Iowa Academy of Science: JIAS
Johan August Udden served on the faculty of Augustana College from 1888 until 1911. His research during that time was directed toward an understanding of the geology of areas close at hand, the region around Rock Island and nearby areas in Iowa and Illinois. Udden's most significant contributions to Iowa geology were in his treatment of 1) Paleozoic, Cretaceous, and Quaternary stratigraphy; 2) subsurface geology, including information on bedrock elevations and topography; 3) characteristics and origin of the loess. Most of this information was included in the Annual Reports of the Iowa Geological Survey published between 1899 and 1903. He …