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Four of the six foreign scientists aboard D/V Glomar Challenger (ship) for Leg 42B of the Deep Sea Drilling Project in the Black Sea near the ships drilling derrick, as the ship nears Istanbul at the end of the cruise. Left to right: Egon T. Degens, Geological-Paleontological Institute, Hamburg, Germany; E.A. Trimonis, P.P. Shirshov Institute of Oceanology, USSR Academy of Sciences, Moscow, USSR; Ken J. Hsu, Geologisches Institute der E.T.H., Zurich, Switzerland; and Yuri Neprochov, of the P.P. Shirshov Institute of Oceanology and also Co-Chief Scientist for the leg. Managing institution for Deep Sea Drilling Program was Scripps Institution of Oceanography under contract to the National Science Foundation (NSF). June 1975.

Four of the six foreign scientists aboard D/V Glomar Challenger (ship) for Leg 42B of the Deep Sea Drilling Project in the...