Dr

Dr. Francis P. Shepard, the “father of marine geology,” discussing scientific findings of the International Indian Ocean Expedition on board the Coast and Geodetic Survey Ship PIONEER at a press conference in Colombo, Ceylon. Looking on were Dr. Robert Dietz, an early pioneer in plate tectonic theory, and Dr. Harris B. Stewart, Chief Oceanographer of the Coast and Geodetic Survey.

Photo Date: 1964 May 20