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U.S. Geological Survey Open-File Report 2009-1101

The Partition Intervalometer: A Programmable Underwater Timer for Marking Accumulated Sediment Profiles Collected in Anderson Sediment Traps: Development, Operation, Testing Procedures, and Field Results

Return to: Title Page » Introduction » Development » Function and Operation » Testing Procedures and Results » Results of Field Tests » Summary » Acknowledments » References » List of Figures » Appendix 1: Programming the Intervalometer » Appendix 2: Synopsis of Field Notes

Figure 5.  Photograph showing the lower section of the collection tube recovered from the Hueneme Canyon sediment trap, which was placed  30 m above the sea floor (30 mab). The edges of the discs deposited at 10-day intervals in the sediment column appear as horizontal white lines throughout the tube. Scale is in centimeters.
Figure 5. Photograph showing the lower section of the collection tube recovered from the Hueneme Canyon sediment trap, which was placed 30 m above the sea floor (30 mab). The edges of the discs deposited at 10-day intervals in the sediment column appear as horizontal white lines throughout the tube. Scale is in centimeters.

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