Iowa need not be ashamed of the part her geologists have played, either in the past history of sedimentation, or in the recently renewed American activity on this important, but too long neglected subject. There being no igneous rocks in situ within the state and practically no exposures of metamorphic rocks, all the work which has been done on the geology of the state during the years is more or less closely related with sedimentation. The more recent investigations of breccias by Professor W. H. Norton, of gumbotils by Dr. George F. Kay, of Pennsylvanian stratigraphy and structure by Dr. John L. Tilton, and of clays by Dr. Sidney L. Galpin, constitute important contributions to knowledge of sedimentary rocks and the conditions under which they are formed. At the State University there is a research course in sedimentation and a sedimentation laboratory is in process of establishment.
Proceedings of the Iowa Academy of Science
©1922 Iowa Academy of Science, Inc.
Trowbridge, A. C.
"The Status of Sedimentation in Iowa,"
Proceedings of the Iowa Academy of Science, 29(1), 127-127.
Available at: https://scholarworks.uni.edu/pias/vol29/iss1/20