Next Table | Table of Contents

Table T2. Time estimates for Leg 204: primary and secondary sites.

Site
Water
Depth
(mbrf)
Latitude (°N)
Longitude (°W)
Approved depth
(mbsf)
Operations description
Port
(days)
Transit
(days)
Coring
and LWD
(days)
WL Log
and VSP
(days)
Total
Site
(days)

San Francisco











37.45°
NA
Starting port for Leg 204 (leg begins w/1st line ashore)







122.27°

(Note: load all Anadril LWD, Hyacinth, and PCS tools)
5.0








Transit ~448 nmi to Site HR1a @ 10.5 kt

1.8



HR1a
976
44.586159°
350
Hole A: APC to ~150 mbsf, XCB to ~350 mbsf;
Adara, DVTP


2.3




125.119213°

Hole B: drill LWD hole to 350 mbsf


1.5

3.8




Transit ~1.2 nmi to Site HR3a @ 10.5 kt

0.1



HR3a
893
44.586152°
700
Hole A: drill LWD hole to 350 mbsf


1.4




125.148464°






1.4




Transit ~3.3 nmi to Site HR2alt @ 10.5 kt

0.1



HR2alt
1221
44.57031°
620
Hole A: drill LWD hole to 350 mbsf


1.6




125.074193°






1.6




Transit ~3.2 nmi to Site HR4a @ 10.5 kt

0.1



HR4a
773
44.568605°
100
Hole A: drill LWD hole to 100 mbsf


0.9




125.149480°






0.9




Transit ~0.1 nmi to Site HR4b @ 10.5 kt

0.1



HR4b
803
44.570386°
60
Hole A: drill LWD hole to 60 mbsf


0.8




125.147657°






0.8




Transit ~0.4 nmi to Site HR4c @ 10.5 kt

0.1



HR4c
795
44.577631°
240
Hole A: drill LWD hole to 240 mbsf


1.2




125.150153°






1.2




Transit ~124 nmi to Astoria @ 10.5 kt

0.6



Astoria

46.12°
NA
Mid-leg port call: offload LWD tools
0.4






123.50°

(estimate 12-hr port call—daylight only)









Transit ~126 nmi to Site HR2alt @ 10.5 kt

0.6



HR2alt
1221
44.57031°
620
Hole B: APC to ~150 mbsf, XCB to ~500 mbsf;
Adara, DVTP


3.1




125.074193°

Hole C: APC to ~150 mbsf, XCB to ~500 mbsf;
PCS, Hyacinth


3.7

6.8




Transit ~3.2 nmi to Site HR4a @ 10.5 kt

0.1



HR4a
773
44.568605°
100
Hole B: APC to ~100 mbsf;
Adara


0.7




125.149480°

Hole C: APC to ~100 mbsf;
PCS, Hyacinth


1.1

1.8




Transit ~1.1 nmi to Site HR3a @ 10.5 kt

0.1



HR3a
893
44.586152°
700
Hole B: APC to ~150 mbsf, XCB to 500 mbsf;
DVTP


2.9




125.148464°

Hole C: APC to ~150 mbsf, XCB to 500 mbsf;
PCS, Hyacinth


3.4






Hole D: drill to ~490 mbsf, RCB to 700 mbsf;
MBR


3.5
2.5





(WL log—triple combo/FMS-sonic/VSP/offset)




12.3




Transit ~1.2 nmi to Site HR1a @ 10.5 kt

0.1



HR1a
976
44.586159°
350
Hole C: APC to ~150 mbsf, XCB to ~350 mbsf;
PCS, Hyacinth


3.2
2.5



125.119213°

(WL log—triple combo/FMS-sonic/VSP/offset)




5.7




Transit ~2.1 nmi to Site HR2alt @ 10.5 kt

0.1



HR2alt
1221
44.57031°
620
Hole D: drill to ~490 mbsf, RCB to 620 mbsf;
MBR


3.5
2.5



125.074193°

(WL log—triple combo/FMS-sonic/VSP/offset)




6.0




Transit ~3.1 nmi to Site HR4b @ 10.5 kt

0.1



HR4b
803
44.570386°
60
Hole B: APC to ~60 mbsf;
Adara


0.6




125.147657°

Hole C: APC to ~60 mbsf;
PCS, Hyacinth


0.9

1.5




Transit ~0.4 nmi to Site HR4c @ 10.5 kt

0.1



HR4c
795
44.577631°
240
Hole B: APC to ~150 mbsf, XCB to 240 mbsf;
DVTP


1.3




125.150153°

Hole C: APC to ~150 mbsf, XCB to 240 mbsf;
PCS, Hyacinth


2.2

3.5




Transit ~819 nmi to San Diego @ 10.5 kt

3.4



San Diego

32.45°
NA
Ending port for Leg 203







117.10°

(leg officially ends with 1st line ashore)















Subtotal:




5.4
7.5
39.6
7.5
47.1
Total operating days (including days in port):
60.0
2.2
3.5












Next Table | Table of Contents