TY  - JOUR
AU  - Baroni, M.
AU  - Thiemens, M. H.
AU  - Delmas, R. J.
AU  - Savarino, J.
PY  - 2007//
TI  - Mass-Independent Sulfur Isotopic Compositions in Stratospheric Volcanic Eruptions
T2  - Science
JO  - Science
SP  - 84
EP  - 87
VL  - 315
IS  - 5808
N2  - The observed mass-independent sulfur isotopic composition ({Delta}33S) of volcanic sulfate from the Agung (March 1963) and Pinatubo (June 1991) eruptions recorded in the Antarctic snow provides a mechanism for documenting stratospheric events. The sign of {Delta}33S changes over time from an initial positive component to a negative value. {Delta}33S is created during photochemical oxidation of sulfur dioxide to sulfuric acid on a monthly time scale, which indicates a fast process. The reproducibility of the results reveals that {Delta}33S is a reliable tracer to chemically identify atmospheric processes involved during stratospheric volcanism.
SN  - 0036-8075
UR  - http://www.sciencemag.org/cgi/content/abstract/315/5808/84
N1  - 10.1126/science.1131754
ID  - Baroni_etal2007
ER  -