Retrun to the 2003 Fall AGU Poster 3.5kHz Profiling with Vertically Separated
Source and Receiver
Figure 2. This 3.5-kHz echo sounder recording
shows that the seafloor dips smoothly ~6 m from the H2O junction box to the drill
site, 1224. One subbottom horizon at ~9 m is fairly uniform throughout the area.
Based on drilling results, this is a mid-sediment reflector. A second reflector
at ~30 m below the junction box can be associated with basaltic basement although
it appears only occasionally in the record. One objective of lowering the 3.5
kHz source to the seafloor was to improve the resolution of the basement reflection.
PDR = precision depth recorder. Created on December 15, 2003 by Tom Bolmer
Retrun to the 2003 Fall AGU Poster 3.5kHz Profiling with Vertically Separated
Source and Receiver