Overheads showing:
1) high percentage of organic carbon in the sediments in the Ulleung Basin and around the margins - coinciding with occurrence of deep nitrite. High percentages are similar to (greater than) percentages found in Washington coast sediment measurements tha
2) schematic of bottom composition near Hokkaido, showing fissures, gas hydrates that mix bottom sediments. (Takeuchi et al., 1998)
3) strong currents and eddies extending to bottom might also result in turbidity, extending the sediment processes up into the water column.
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