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Science 11 October 1985:
Vol. 230. no. 4722, pp. 170 - 172
DOI: 10.1126/science.230.4722.170
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Articles

Halite Particles Injected into the Stratosphere by the 1982 El Chichón Eruption

DAVID C. WOODS 1, RAYMOND L. CHUAN 2, and WILLIAM I. ROSE 3

1 Atmospheric Sciences Division, NASA Langley Research Center, Hampton, Virginia 23665
2 Brunswick Corporation, Costa Mesa, California 92626
3 Department of Geology and Geological Engineering, Michigan Technological University, Houghton 49931

Halite particles about 2 micrometers in size were collected by a quartz crystal microbalance cascade impactor from the El Chichón eruption cloud in the lower stratosphere during April and May 1982. These particles are probably derived from the erupted chloride-rich, alkalic magma. Enrichments of hydrogen chloride and increases in optical depolarization in the eruption cloud observed by lidar measurements may reflect the influence of the halite particles. There is evidence that the halite particles reacted with sulfuric acid after about 1 month, releasing gaseous hydrogen chloride, which can influence the catalytic destruction of ozone in the stratosphere.

Submitted on March 14, 1985
Accepted on July 26, 1985


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
The 12 900 years BP Laacher See eruption: estimation of volatile yields and simulation of their fate in the plume.
C. Textor, P. M. Sachs, H.-F. Graf, and T. H. Hansteen (2003)
Geological Society, London, Special Publications 213, 307-328
   Abstract »    PDF »
Changes in stratospheric composition, chemistry, radiation and climate caused by volcanic eruptions.
R. G. Grainger and E. J. Highwood (2003)
Geological Society, London, Special Publications 213, 329-347
   Abstract »    PDF »
Stratospheric Chlorine Injection by Volcanic Eruptions: HCI Scavenging and Implications for Ozone.
A. Tabazadeh, A. Tabazadeh, and R. P. Turco (1993)
Science 260, 1082-1086
   Abstract »    PDF »


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