Leg 190 - Nankai Trough Accretionary Prism (Proposal No. 445-6)
Operations Plan and Time Estimate for Primary Sites
Revision: 7 Date: 27 Jan 00
                   
Site Location Water Operations Description Days Transit Drilling Logging Total
No. Lat/Long Depth per hole (days) (days) (days) On-site
                   
                   
Guam 13°27'N   Transit 1244.2 nmi from Guam to ENT-01A     4.9      
  144°38'E   Seismic survey on approach to site     0.30      
                   
ENT-01A 32°14.14'N 4760 m Hole A: APC core to 125 mbsf, XCB to 350 mbsf   4.6   10.2 1.8 12.0
  135°01.87'E   Oriented APC, ~2 ea Adara, ~3 ea DVTP, ~4 ea WSTP            
      Hole B: Drill to 340 mbsf, RCB to 700 mbsf   7.3        
      ~3 ea DVTP, ~ 4 ea WSTP            
      Log - triple-combo, FMS-sonic, VSP check shot            
      NOTE: PPSP approved depth is 700 mbsf            
      Transit 7.3 nmi from ENT-01A to ENT-03A     0.0      
                   
ENT-03A 32°20.30'N 4730 m Hole A: APC to 125 mbsf, XCB to 350 mbsf   4.4   15.1 0.0 15.1
  134°57.25'E   Oriented APC, ~2 ea Adara, ~3 ea DVTP, ~4 ea WSTP            
      Hole B: Drill to 340 mbsf, RCB core to 1150 mbsf   10.7        
      1 ea DIC, ~3 ea DVTP, ~4 ea WSTP            
      NOTE: PPSP approved depth is 1160 mbsf            
      Transit 22.6 nmi from ENT-03A to ENT-07A     0.1      
                   
ENT-07A 32°36.03'N 3022 m Hole A: APC to 200 mbsf, XCB to 400 mbsf   3.3   3.3 0.0 3.3
  134°38.42'E   Oriented APC, ~2 ea Adara, ~3 ea DVTP, ~4 ea WSTP            
      NOTE: PPSP approved depth is 800 mbsf            
      Transit 2.6 nmi from ENT-07A to ENT-06A     0.1      
                   
ENT-06A 32°34.49'N 3045 m Hole A: APC core to 200 mbsf, XCB to 500 mbsf   4.1   8.6 0.0 8.6
  134°40.31'E   Oriented APC, ~2 ea Adara, ~3 ea DVTP, ~4 ea WSTP            
      Hole B: Drill to 490 mbsf, RCB to 800 mbsf   4.4        
      ~3 ea DVTP, ~4 ea WSTP            
      NOTE: PPSP approved depth is 800 mbsf            
      Transit 61.8 nmi from ENT-06A to WNT-01A     0.2      
                   
WNT-01A 31°43.87'N 4850 m Hole A: Drill 0 to 300 mbsf, RCB 300 mbsf to 700 mbsf   6.7   6.7 0.0 6.7
  133°56.85'E   ~3 ea DVTP, ~4 ea WSTP            
      NOTE: PPSP approved depth is 1200 mbsf            
                   
Yokohama 35°28'N   Transit 374.8 nmi from WNT-01A to Yokohama     1.6      
  139°38'E                
                   
          Subtotals 7.3 43.9 1.8 45.7
                   
          TOTAL DAYS: 53.0

Time Estimates for Alternate Sites

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