Boo-Keun (BK) Khim (Sedimentologist, Pusan National University, Korea) meticulously records the descriptive details of the core. This important task, which documents the sediment and rock recovered during an expedition, is completed by a team of core describers with different scientific backgrounds depending on what type of sediment or rock we will core during an expedition. The records they produce are critical for future scientists who may wish to study the cores at a later time. (Credit: Bill Crawford, IODP JRSO) [Photo ID: exp355_163]