Table of Core Recovery for KNR191

Core	Barrel length	Weight (lbs)*	Recovery	% Recovery**	Cutter Diameter
Bermuda Rise
10 CDH	100 ft	~ 9,120 lbs	26.71 m	88 %	4.375" cm
11 CDH***	120 ft	~ 9,780 lbs	31.20 m	85 %	4.375" cm
13 CDH	140 ft	~11,100 lbs	36.87 m	86 %	4.375" cm
14 CDH***	150 ft	~15,100 lbs	36.21 m	79 %	4.375" cm
16 CDH	140 ft	~15,280 lbs	37.68 m	88 %	4.3125" cm
19 CDH	140 ft	~15,280 lbs	38.83 m	91 %	4.250" cm
20 CDH	150 ft	~15,610 lbs	38.32 m	87 %	4.3125" cm
New Jersey Margin
21 CDH	120 ft	~14,120 lbs	24.87 m	68%	4.250"cc

* The weight is estimated based on the configuration of core, the known weights of the core head and core barrels, and estimated weights for the core couplings, core cutter and core catcher.

** % Recovery is calculated as the length of recovered sediment divided by the penetration of the core barrel as recorded by the mud line on the exterior of the core.

*** Core overpenetration - 11CDH estimated to be 1 to 2 meters, 14CDH estimated to be 5 meters

Last updated: December 20, 2010