I am a Professor Emeritus at the Department of Geophysical Sciences of the University of Chicago where I have served on the faculty for more than 40 years.  While I am retired, I continue to be active in research and teaching.  Welcome to my website.

My on-campus office is Hinds 422, and my page on the Departmental Website is here. If I am not on campus, I can be reached by email. My intention is to be on campus at least one day a week over the coming year.