|
Reflector
traveltime (ms) |
Approximate
depth (m) |
Comments
|
|---|---|---|
| 11 | 9.4 | Consistent between lowerings and differing source elevations; appears to be an extensive interface. |
| 14 | 11.9 | Varies between lowering and with different source elevations; probably a less extensive planar interface. |
| 27 | 24.5 | Weak return which varies between lowerings and source elevations; perhaps a prominence in basement. |
| 32 | 29.5 | Strength varies with elevation; perhaps indicating a concave surface which focuses and defocuses. |
| 36 | 33.5 | Strong basement reflector; change of echo envelope between lowerings suggests irregular topography. |
| 39 | 36.4 | Large change between lowerings and with source elevation; perhaps represents a small hollow in basement surface. |