Microfossils in Wisconsinan Loess and Till from Western Illinois and Eastern Iowa
- 14 June 1963
- journal article
- research article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 140 (3572) , 1222-1224
- https://doi.org/10.1126/science.140.3572.1222
Abstract
Wisconsinan loess from Illinois and Iowa contains a varied assemblage of microfossils including radiolaria, foraminifera, sponge spicules, and opal phytoliths. The foraminifera and radiolaria are derived from Cretaceous rocks occurring on the northern Great Plains. The sponge spicules are from fresh-water sponges living during the epoch of loess deposition. The phytoliths were produced by vegetation growing during deposition. These microfossils are valuable in determining loess and till provenance and in paleoecological reconstruction.This publication has 1 reference indexed in Scilit:
- Loess Formations of the Mississippi ValleyThe Journal of Geology, 1950