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Science 20 November 1998:
Vol. 282. no. 5393, pp. 1426 - 1427
DOI: 10.1126/science.282.5393.1426
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Perspectives

PALEOCLIMATE:
The Sulfur Cycle and Atmospheric Oxygen

Robert A. Berner and Steven T. Petsch

Changes in the ratios of isotopes of sulfur and carbon in seawater and sediment caused by biological processes can reveal much about past climate changes. In their Perspective, Berner and Petsch discuss results reported in the same issue by Paytan et al. on measurements of isotope abundances that overcome difficulties that have plagued previous studies. This new data set should prove useful in understanding atmospheric chemistry in the past, particularly changes in atmospheric oxygen.

The authors are in the Department of Geology and Geophysics, Yale University, New Haven, CT 05620-8109, USA. E-mail: berner{at}hess.geology.yale.edu; steven.petsch{at}yale.edu

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THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Isotope Fractionation and Atmospheric Oxygen: Implications for Phanerozoic O2 Evolution.
R. A. Berner, S. T. Petsch, J. A. Lake, D. J. Beerling, B. N. Popp, R. S. Lane, E. A. Laws, M. B. Westley, N. Cassar, F. I. Woodward, et al. (2000)
Science 287, 1630-1633
   Abstract »    Full Text »


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