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Table T1. Operations, Site M0066.

Core Coring
method 		Date
(2013) 		Time
(UTC) 		Depth (mbsf) Recovered
(m) 		Recovery
(%) 		Mud type Comments
Top Bottom
347-M0066A-
    26 Oct 0723           On site, lowered seabed frame; completed ROV survey for Holes M0066A and M0066B
    26 Oct 0736           Ran pipe
    26 Oct 0816           Relief valve on powerpack sticking again; stopped to fix
    26 Oct 0835           Pipes at seabed frame
1O NCA 26 Oct 0835 0.00 2.00 0.00 0 Seawater Open hole first section to avoid possible contamination
2H PCS 26 Oct 0845 2.00 5.30 3.52 106.67 Seawater  
3H PCS 26 Oct 0910 5.30 8.60 2.91 88.18 Seawater Did not push full stroke and only released pressure when string lifted
4H PCS 26 Oct 1025 8.60 11.35 2.75 100 Guar Fine sand recovered; piston did not go full stroke
5O NCA 26 Oct 1110 11.35 11.90 0.00 0 Guar Washed down remainder of 3.3 m stroke length of piston
6H PCS 26 Oct 1125 11.90 14.63 2.73 100 Guar Fine sand recovered; piston did not go full stroke
7O NCA 26 Oct 1140 14.63 15.20 0.00 0 Guar Washed down remainder of 3.3 m stroke length of piston
8S HS 26 Oct 1105 15.20 15.27 0.07 100 Guar HS run, OSL sample taken; 0.07 m of till recovered; driller did not notice change in drilling, so ~15 mbsf thought to be top of this unit
9N NRCB 26 Oct 1215 15.20 16.20 0.85 85 Guar NRCB run started from stop depth of Run 7 without advancing to the recovered length of Run 8 in an attempt to recover clay-like material; very hard diamicton recovered
10N NRCB 26 Oct 1245 16.20 17.20 0.44 44 Guar  
11N NRCB 26 Oct 1325 17.20 17.70 0.60 120 Guar Blocked off, so pulled before 1 m run ended
12N NRCB 26 Oct 1400 17.70 18.70 0.71 71 Guar  
13N NRCB 26 Oct 1425 18.70 19.70 1.47 147 Guar Green sand ~30 cm from base; cored very quickly
14N NRCB 26 Oct 1445 19.70 20.70 0.27 27 Guar Gray sand, more silty
15N NRCB 26 Oct 1510 20.70 21.70 0.30 30 Guar  
16N NRCB 26 Oct 1530 21.70 22.70 0.70 70 Guar  
17N NRCB 26 Oct 1610 22.70 23.70 0.00 0 Guar  
18N NRCB 26 Oct 1510 23.70 24.70 0.05 5 Guar  
19H PCS 26 Oct 1710 24.70 26.10 3.11 222.14 Guar 3.11 m sand recovered; when washing 3.3 m to the next sample, driller noted lithology change at 26.1 mbsf to a clay-like material; drilling was stopped to take a PCS sample; thought the material recovered was “suck-in” and not depth related, as the PCS did not drop to zero after firing; basal depth of this run is arbitrary
20N NRCB 26 Oct 1757 26.10 27.00 0.51 56.67 Guar  
21N NRCB 26 Oct 1815 27.00 28.00 0.31 31 Guar  
    26 Oct 1855           End of hole
    26 Oct 1855           Tripped pipe; lifted template
347-M0066B-
    26 Oct 1925           On site; lowered seabed frame
    26 Oct 1935           Ran pipe
    26 Oct 1945           Pipes at seabed frame
1O NCA 26 Oct 1945 0.00 2.00 0.00 0 Seawater Open hole first section to avoid possible contamination
2H PCS 26 Oct 1955 2.00 5.30 3.53 106.97 Seawater  
3H PCS 26 Oct 2040 5.30 8.60 3.14 95.15 Seawater  
4P PCA 26 Oct 2120 8.60 9.60 0.03 3 Guar  
5H PCS 26 Oct 2140 9.60 12.90 2.68 81.21 Guar 61 bar
6P PCA 26 Oct 2205 12.90 13.90 0.05 5 Guar  
7H PCS 26 Oct 2240 13.90 15.40 3.09 206 Guar 150 bar, pressure did not drop until released; probably sucked core in
8N NRCB 26 Oct 2320 15.40 16.40 0.90 90 Guar  
9N NRCB 27 Oct 0002 16.40 17.40 0.34 34 Guar  
10N NRCB 27 Oct 0040 17.40 18.40 0.02 2 Guar  
11N NRCB 27 Oct 0110 18.40 19.40 0.00 0 Guar  
12H PCS 27 Oct 0130 19.40 22.00 2.80 107.69 Guar  
13H PCS 27 Oct 0205 22.00 25.10 3.14 101.29 Guar  
14H PCS 27 Oct 0250 25.10 27.85 2.75 100 Guar 70 bar
    27 Oct 0330           End of hole
    27 Oct 0340           Started lifting pipe
    27 Oct 0400           Started washing down pipes that had been through the mudline and also the drill collars and BHA
    27 Oct 0445           Seabed frame pulled up into moonpool; continued washing down with fire hydrant hose to remove contamination
    27 Oct 0515           Seabed frame brought up on deck

HS = hammer sampler, NCA = noncoring assembly, NRCB = nonrotating core barrel, PCA = push coring assembly, PCS = piston coring system. ROV = remotely operated vehicle, OSL = optically stimulated luminescence, BHA = bottom-hole assembly.

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