Originally, all sedimentary rocks were thought to be marine. When the St. Peter sandstone was first recognized as a distinct formation, it was assumed to have had a marine origin. More recently, however, the marine origin of many sediments has been doubted, and the criteria for distinguishing various sorts of sedimentary rocks have been worked out. As early as 1907 evidences were presented for the eolian origin of the St. Peter sandstone, although there are those who have never accepted the evidence as conclusive. In the literature of the subject, the matter is not settled.
Proceedings of the Iowa Academy of Science
©1917 Iowa Academy of Science, Inc.
Trowbridge, Arthur C.
"The Origin of the St. Peter Sandstone,"
Proceedings of the Iowa Academy of Science, 24(1), 171-175.
Available at: https://scholarworks.uni.edu/pias/vol24/iss1/26