Abstract

Box cores taken in submarine canyon and fan valley areas in the Pacific Ocean, off La Jolla and Baja California, indicate that gravel is a common constituent under thin mud. The scarcity of graded bedding suggests slumping of sediment in addition to the work of of turbidity currents. The box corer is described as a tool to combat problems of currents during sampling and to help orient the structure.--G.D.C

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