The petrology of arc volcanics is an ongoing topic of investigation, with
current work in Nisyros,
Copahue Volcano and Caviahue caldera, Argentina and former work in the ignimbrites
of Liberia, Costa Rica and Indonesia.
Students: Rita Setser ' 95 (Costa Rica (now an MA student at the University
of Texas, Austin)
Adam Goss, 2001, currently a PhD student at Cornell University, Ithaca,
NY.
Landsat image of Copahue and the Caviahue caldera.
Paper on petrology of Copahue volcano
Plot of Copahue rocks in Ti-V diagram, showing its intermediate position
between the back-arc alkali basalts and arc rocks.
Olivine and clinopyroxene (5 mm) with opx+opaque inclusions in glassy groundmass.