Tarduno, J. A., et al. "Geodynamo, solar wind, and magnetopause 3.4 to 3.45 billion years ago." Science (March 5, 2010).
This research was funded by the National Science Foundation.
- Scientists in South Africa ( John Tarduno, University of Rochester)
- Ancient quartz crystal ( Rory Cottrell, University of Rochester )
- Magnetic field simulation ( AMNH )