Distinguished Professor of Geophysics

Research Interests

  • The behavior of the ancient geomagnetic field: How long has the geomagnetic field been essentially dipolar? Why does the magnetic field reverse? How strong can the magnetic field get? How fast can it change?
  • Statistical analysis of paleomagnetic data.
  • Applications of paleomagnetic data to geological problems such as: The use of paleomagnetic data for geochronological control. The use of paleointensity variations as an additional magnetostratigraphic tool. 
  • Rock fabrics: The use of paleomagnetic data in structural and tectonic problems

Research Keywords

Paleomagnetism; Rock magnetism; Magnetostratigraphy; Paleointensity; Archaeomagnetism; ancient geomagnetic field


  • B.S., Yale University
  • M.A., Columbia University
  • Ph.D., Columbia University