Figure F11. Multibeam bathymetric map of J-Anomaly Ridge based on the site survey by the R/V Knorr (KNR179-1). The major features are a series of largely buried seamounts surrounded by sinuous drifts of clay and nannofossil ooze, mostly of Oligocene and Miocene age, that are built on top of Eocene sediment drifts. Also shown are Expedition 342 drill sites on the large, smooth, pillowlike surface of the J-Anomaly sediment drift.
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