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Table of Core Recovery for KNR191

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CoreBarrel lengthWeight (lbs)* Recovery% Recovery**Cutter Diameter
Bermuda Rise
10 CDH100 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
 


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