8
Dr. Libby
"Prior to the shot the lagoon floor at the shot point
was at a depth of 162 ft.
The bottom in the vicinity was
quite irregular, with a general slope toward the center
of the lagoon and with a large number of coral heads.
The post-shot survey indicated that the effect of the
shot was to pulverize or depress the bottom directly
under the shot point and to destroy the coral heads in
the vicinity.
Mud or fine (almost suspended) sand
was deposited as indicated in the profiles eat a uniform
depth of about 180 ft. Lead line soundings by H&N during the
placement of the barge for a later shot gave a depth of
250 ft."
If more accurate depths ere required, we can get them from the
Seientific Task Group, but it will take a few days.
/s/
|
Alfred D. Starbird
Brigadier General; USA
Director of Military Application
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