In Iowa some very important parts of the general Carbonic section are missing. Of these unrepresented portions none is so widely interesting at the present time as the part commonly called the Red-Beds. The very name is itself indicative of the uncertainties surrounding the proper geologic affinities of the formation. Until very recently the Red-Beds formation has been one of the enigmas of American geology. The Red-Beds have steadily resisted all attempts to unravel the secret of their geologic age. The key to the puzzle appears finally to be found in the far-off Mexican tableland.
Proceedings of the Iowa Academy of Science
©1908 Iowa Academy of Science, Inc.
Keyes, Charles R.
"Stratigraphic Position of Western Red-Beds,"
Proceedings of the Iowa Academy of Science, 15(1), 143-144.
Available at: https://scholarworks.uni.edu/pias/vol15/iss1/22