Summary: Sulfate sources and oxidation chemistry over the past 230 years
from sulfur and oxygen isotopes of sulfate in a West Antarctic
ice core
S. A. Kunasek,1
B. Alexander,2
E. J. Steig,1
E. D. Sofen,2
T. L. Jackson,3
M. H. Thiemens,3
J. R. McConnell,4
D. J. Gleason,1
and H. M. Amos2,5
Received 8 January 2010; revised 20 April 2010; accepted 3 May 2010; published 28 September 2010.
[1] The sulfur and oxygen isotopic composition of sulfate in polar ice cores provides
information about atmospheric sulfate sources and formation pathways, which have been
impacted regionally by human activity over the past several centuries. We present
decadal scale mean ice core measurements of D17
O, d34
S, D33
S, and D36

Source: Alexander, Becky - Department of Atmospheric Sciences, University of Washington at Seattle

Collections: Environmental Sciences and Ecology; Geosciences