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.
SNM Organization

Site Tools

  • AAAS
  • Subscribe
  • Feedback

Site Search

Search Advanced

Science 18 February 2005:
Vol. 307. no. 5712, pp. 1058 - 1059
DOI: 10.1126/science.1107482
Prev | Table of Contents | Next

Perspectives

OCEAN SCIENCE:
Ironing Out Biosphere Oxidation

Lee Kump

Various lines of evidence now indicate that the atmosphere became oxygen-rich about 2.3 billion years ago. In his perspective, Kump describes work by Rouxel and colleagues who used the stable isotopic composition of iron minerals to explore the environmental context of this monumental global change.

The author is in the Department of Geosciences, Pennsylvania State University, University Park, PA 16802, USA. E-mail: lkump{at}psu.edu

Read the Full Text

ADVERTISEMENT
Click Me!

ADVERTISEMENT
Click Me!

To Advertise     Find Products

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