Clark Johnson

Clark M. Johnson
Vilas Distinguished Professor, Emeritus 
Isotope Geochemistry, Astrobiology, Geochronology, & Petrology 
Office: 329 Weeks Hall

My primary research interests lie in application of stable and radiogenic isotopes to study of ancient life and crust and mantle evolution. This includes topics ranging from astrobiology to the origin of igneous rocks and evolution of volcanic systems. I am also interested in mountain building and metamorphism, as well as low-temperature studies involving diageneis, sedimentary provenance, migration of ancient people, and geomicrobiology.

More details on my current research interests can be found here.

A full list of my publications can be found here.

A complete vitae may be found here, including details on teaching and students and post-docs.

In-depth information on the essential laboratory aspects of our isotope research can be found here: ICP-TIMS Isotope Laboratory.

Finally, a very large amount of information about our decade-long astrobiology program can be found here: Wisconsin Astrobiology Research Consortium.