Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be.

Science 3 August 1984:
Vol. 225. no. 4661, pp. 505 - 508
DOI: 10.1126/science.225.4661.505
Prev | Table of Contents | Next

Articles

Sinking of Volcanic Ash in Uncompacted Sediment in Williams Lake, Washington

ROGER Y. ANDERSON 1, EDWARD B. NUHFER 2, and WALTER E. DEAN 3

1 Department of Geology, University of New Mexico, Albuquerque 87131
2 Department of Geosciences, University of Wisconsin, Platteville 53818
3 U.S. Geological Survey, Denver, Colorado 80225

Volcanic ash from the eruption of Mount St. Helens on 18 May 1980 fell into Williams Lake in eastern Washington and was temporarily suspended at the sediment-water interface. After several months of compaction, the ash layer broke up and sank into lower density uncompacted lake sediment. Stratigraphic time displacements of several hundred years and a failure to recognize discontinuous ash layers in sediment cores are possible consequences of this process.

Submitted on February 27, 1984
Accepted on April 12, 1984


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Cryptotephra sedimentation processes within two lacustrine sequences from west central Sweden.
S. M. Davies, M. Elmquist, J. Bergman, B. Wohlfarth, and D. Hammarlund (2007)
The Holocene 17, 319-330
   Abstract »    PDF »
Holocene palaeoclimates of southern Patagonia: limnological and environmental history of Lago Cardiel, Argentina.
V. Markgraf, V. Markgraf, J. P. Bradbury, A. Schwalb, S. J. Burns, C. Stern, D. Ariztegui, A. Gilli, F. S. Anselmetti, S. Stine, et al. (2003)
The Holocene 13, 581-591
   Abstract »    PDF »
Seasonal sedimentation: a framework for reconstructing climatic and environmental change.
R. Y. Anderson (1996)
Geological Society, London, Special Publications 116, 1-15
   Abstract »    PDF »


To Advertise     Find Products

Science. ISSN 0036-8075 (print), 1095-9203 (online)