
Image by Dann Blackwood. |
Sediment traps of various sizes are used to collect sediment
as it falls through the water column. This type collects all
the sediment in a tube located inside a PVC pipe under the
funnel. The tube is removed and sectioned. The bottom image
shows the internal tube with its sediment. A clear tube inside
the trap catches the sediment. Layers are visible in this
image. The contents are sectioned, sampled and analyzed similarly
to cores taken of the ocean bottom. back to index |