Pleistocene forests preserved in Oregon coast sediments
Article first published online: 3 JUN 2011
©2005. American Geophysical Union. All Rights Reserved.
Eos, Transactions American Geophysical Union
Volume 86, Issue 1, pages 2–3, 4 January 2005
How to Cite
2005), Pleistocene forests preserved in Oregon coast sediments, Eos Trans. AGU, 86(1), 2–3, doi:10.1029/2005EO010004., , and (
- Issue published online: 3 JUN 2011
- Article first published online: 3 JUN 2011
Erosion on the Oregon coast has exposed several paleosols (ancient soil deposits) containing well-preserved tree trunks. Some trunks are of Holocene age [Hart and Peterson, 1997], while others are much older. These macrofossil deposits contain clues to tectonic activity, paleovegetation patterns, coastal erosion, and climate evolution.
This article describes a paleosol located near Cape Perpetua, Oregon, containing trunks dated at prior to 50,000 B.P. The forest appears to have been buried during a catastrophic debris flow and preserved due to anoxia.