Date of Award


Document Type


Degree Name

Master of Arts (MA)


Geography and Geology

First Advisor

Dr. Rolfe Mandel


The Holocene in the central U.S. is the period of time since the retreat of the last continental ice sheets. It has been a 10,000 year period of climate variability. In North America, Holocene climatic fluctuations have been detected in the paleoenvironmental record of the central United States. The most evident climactic fluctuation has been the mid-Holocene Climatic Optimum, or Altithermal. The Altithermal provided the warmest and driest post-glacial climatic conditions which lasted from ca. 8500-4000 years B.P.


A Thesis Presented to the Department of Geography-Geology and the Faculty of the Graduate College University of Nebraska In Partial Fulfillment of the Requirements for the Degree Master of Science University of Nebraska at Omaha. Copyright 1990 Raymond P. Latimer.

Files over 3MB may be slow to open. For best results, right-click and select "save as..."