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ALEUTIAN TRENCH CORE STUDY - Three members of the scientific staff on Leg 18 of the Deep Sea Drilling Project, left to right, Sherwood W. Wise, Jr., of Zurich, Switzerland; James C. Ingle, of Stanford University, and Hans-Joachim Schrader of Kiel, West Germany, study samples of a core recovered on the Aleutian Trench. The core was taken in 16,152 feet of water after a penetration of 98 feet into the ocean floor. It was Uppermost Pleistocene - approximately a half million years old. The core contained diatoms (marine algae) and radiolaria (marine plankton). To the eye, the core was sticky gray clay with fine sand. Schrader is taking a 10cc sample in a polyethylene tube for further study. 1972.

ALEUTIAN TRENCH CORE STUDY - Three members of the scientific staff on Leg 18 of the Deep Sea Drilling Project, left to rig...