A Farmdalian Pollen Diagram From East-Central Iowa

Authors

Kent L. Van Zant, Earlham CollegeFollow
George R. Hallberg, Iowa Geological SurveyFollow
Richard G. Baker, University of IowaFollow

Document Type

Research

Keywords

Farmdalian Interstade, Iowa, Paleoclimatology, Paleoecology, pine, pollen, spruce

Abstract

Pollen analysis of the Butler Farm buried peat in east-central Iowa suggests that a spruce-pine forest grew in the area during the Farmdalian Substage. Pine decreased and spruce increased in dominance as the peat accumulated. Radiocarbon dates indicate that the peat was deposited from 28,800 to 22,750 RCYBP. It is overlain by late Wisconsinan loess and underlain by a Sangamon paleosol developed on Illinoian till. The regional pollen data suggest a general cooling trend through Farmdale time.

Publication Date

June 1980

Journal Title

Proceedings of the Iowa Academy of Science

Volume

87

Issue

2

First Page

52

Last Page

55

Copyright

©1980 Iowa Academy of Science, Inc.

Language

en

File Format

application/pdf

Recommended Citation

Van Zant, Kent L.; Hallberg, George R.; and Baker, Richard G. (1980) "A Farmdalian Pollen Diagram From East-Central Iowa," Proceedings of the Iowa Academy of Science, 87(2), 52-55.
Available at: https://scholarworks.uni.edu/pias/vol87/iss2/6