DISCUSSION 



Question: What analyses are made on the sediments? 



Answer: We are committed to do size-distribution analyses in order to 

 determine whether the material is satisfactory for beach use. The Florida 

 samples will probably be analyzed for calcium carbonate content also. We 

 are most interested, however, in seeing further analyses made. 



Question: In general, how far offshore do you operate? 



Answer: Operations have been conducted as much as 30 miles from shore. 



Question: Do you consider a source 30 miles from shore to be economic? 



Answer: If there were no closer source it might be, but generally this 

 would be most questionable. 



Question: Does the coring frame move up and down with the ship motion? 



Answer: No. The 18-foot long frame has four legs which support it on the 

 bottom and the rig is connected to the boat by three flexible rubber hoses 

 and a wire rope. For this reason it is unnecessary to maintain the vessel 

 directly over the site. It is necessary, however, to maneuver the boat 

 directly over the rig and pull-out in order to prevent bending the core 

 barrel . 



Question: Is the Vibracorer more efficient than free-fall corers? 



Answer: Very much so. Free-fall corers penetrate one or perhaps two feet. 

 The Vibracorer penetrates 10, 12, or 15 feet of sandy sediments. 



Question: Have you been able to correlate sand deposits with your cores 

 and with geomorphic forms, particularly the elongate shoals that exist up 

 and down the coast? 



Answer: Both your questions are very interesting for very practical reasons, 

 A fairly detailed survey of these elongate shoals was made in the vicinity 

 of Manasquan, New Jersey. The shoal is relatively coarse sand. The Corps 

 of Engineers is planning a full systems test in this area; picking up the 

 material and putting it onshore. The test area contains 40 plus million 

 cubic yards of sand - ideally suitable sand. 



Question: Is this a topographic ridge? 



Answer: Yes, 



Question: Are the cores available for analysis by other laboratories? 



Answer: We would be very interested in having further discussions along 



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