Development and Deployment of THEIA: A Compact Underwater Multispectral Imaging System

The Christiana Islands represents the oldest subaerial volcanism in the Christiana-Santorini-Kolombo volcanic field, but the exact age of this volcano has been unknown. This study reports new ⁴⁰Ar/³⁹Ar ages of ten volcanic samples from Christiana Island that cluster between 2.5–2.7 Ma with small uncertainties (0.02–0.14 Ma). One sample dated much younger: 133 ka; this is most likely derived from the Middle Pumice Plinian eruption of Santorini.