Skip to main content
U.S. flag

An official website of the United States government

The variability of holocene climate change: Evidence from varved lake sediments

January 1, 1984

Varved sediments from a lake near the present forest-prairie border in northwestern Minnesota provide an annual record of climate change for the last 10,400 years. Climate-sensitive mineral, chemical, and biological components show that the mid-Holocene dry interval between 8500 and 4000 years ago is asymmetrical and actually consists of two distinct drier pulses separated by a moister interval that lasted about 600 years. Cyclic fluctuations with periods of several hundred years were abrupt and persistent throughout the Holocene and are most clearly recorded within the two drier pulses.

Publication Year 1984
Title The variability of holocene climate change: Evidence from varved lake sediments
Authors W.E. Dean, J.P. Bradbury, R.Y. Anderson, C.W. Barnosky
Publication Type Article
Publication Subtype Journal Article
Series Title Science
Index ID 70012787
Record Source USGS Publications Warehouse