It is exceedingly unfortunate and disturbing that the loess deposits of our state should ever have been mixed up with the glacial tills, when, indeed, they have no more to do with glaciation than the bed-rock itself. Loess, being mainly wind-borne dust derived from Southwestern deserts, and a deposit being continuously laid down far and wide, inside and outside of the glaciated areas, throughout glacial, a swell as interglacial, times, is doubtless being deposited over our state as rapidly and as extensively as loess ever accumulates. It should not, therefore be associated, genetically or otherwise, with our glacial deposits; but be considered wholly apart.
Proceedings of the Iowa Academy of Science
©1931 Iowa Academy of Science, Inc.
"Larger Prospect of our Loess Mantle,"
Proceedings of the Iowa Academy of Science, 38(1), 207-207.
Available at: https://scholarworks.uni.edu/pias/vol38/iss1/51