Francisco E. Apen

Ph.D. student

Department of Earth Science, University of California, Santa Barbara


I am a Ph.D. student in the Department of Earth Science at UC Santa Barbara working with Drs. Roberta Rudnick and John Cottle. My research interests are centered around continental tectonics and geochemistry. My primary tools are radiogenic isotope geochemistry, major and trace element geochemistry, petrology, and numerical modeling.

I completed my B.Sc. in Geology at UC Davis in 2015, followed by a two year stint in the Noble Gas Lab also at UC Davis. In 2017, I embarked on a Ph.D. at UCSB. My current research projects include investigating the thermal history of continental lithosphere in Tanzania, Siberia, and Antarctica. In addition to these projects, I have continuing interests in noble gas geochemistry, its application to the study of mantle heterogeneity and structure, and the geochronology of the Franciscan Complex (no relation) in coastal California.

Feel feel to peruse my website and get in touch.




Department of Earth Science

1006 Webb Hall

University of California

Santa Barbara, CA 93106-9630

Office: 1031 Webb Hall

Curriculum Vitae

Top picture: BSE image of polished zircon grains

Bottom picture: Checking out some blueschist on Ring Mtn., SF Bay, CA