Coring operations 



(1) Coring platform 



(a) Tug and barge 



Tug: capable of 8-knot (14.6-km) minimum with barge in 



tow 

 Barge: Sufficient deck space to accommodate coring device, 

 crane, compressor, and core storage; or 



(b) Ship 



Requirements essentially same as barge 



(2) Reconnaissance boat 



32- ft (9.8-m) minimum length 



10-sq ft (0.9-m 2 ) minimum table space 



110-volt a.c. power 



Compass 



Cruising range: 100-mile minimum 



Cruising speed: 10-knot minimum 



(3) Geographic positioning system 



Range: 20-mile (32.2-km) minimum 

 Accuracy: 10 ft 



(4) Coring device, vibrating 

 Capable of 20- to 40- ft cores 



(5) Compressor 



120 psi (8.4 km/m 2 ) at 250 ft 3 (7.1 m 3 ) per min 



(6) Crane 



11-short-ton (10-metric-ton) minimum 

 30- ft minimum boom length 



(7) Bottom grab sampler 

 Various types available 



(8) Miscellaneous 



Floats, cord, and anchor weights 



Logbooks 



Office supplies 



Batteries 



Sample bags 



Waterproof markers 



Tools and hardware 



Cable and clamps 



A2 



