Stephen E. Cox

About Me

I am an isotope geochemist at Lamont. I study the geochemistry of noble gases.  I was a Columbia University undergraduate from 2005 to 2009, a graduate student with Ken Farley at Caltech from October 2010 to December 2016, and I am now a postdoctoral research scientist in Sidney Hemming's AGES Lab. I am originally from Fort Worth, Texas, where I attended R.L. Paschal High School.

My research interests include noble gas mass spectrometry, geochronology and thermochronology, palaeoclimate, and surface processes.  As an undergraduate, I conducted research on erosion rates in East Antarctica using detrital thermochronology.  As a grad student, I worked on projects involving the development of (U-Th)/Ne, U-Kr, and U-Xr dating techniques. I have characterized the production rate of neon from alpha particles in all materials and I have studied the diffusion of neon from several minerals. I also worked on the development of a static vacuum quadrupole ion trap mass spectrometer for terrestrial and extraterrestrial geochronology at JPL. My current work includes the evolution of the Antarctic ice sheet, the dating of very young volcanic rocks, the evolution of the Turkana Basin and the East African Rift, and improvements in noble gas mass spectrometry.