Abstract
ABSTRACT A large channel which has been eroded in the silty shales and fine-grained sandstones of the Capistrano Formation (Miocene-Pliocene) and filled with contemporaneous thick-bedded, coarse-grained sandstone is exposed in a sea cliff near Dana Point, Orange County, California. Structures suggesting deposition by turbidity currents or related gravity displacement processes with paleocurrent directions toward the southwest are present in both eroded beds and fill. Foraminiferal assemblages indicate water depths of more than 2000 feet. The channel is intepreted as a channel across a deep sub-sea fan.
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