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Table T1. Summary of site characteristics, ODP CORK installations.

Leg/Hole Setting Position Water depth
(m) 		Penetration (m)
(sediment/casing/total) 		Type Operational
period
139/857D
169/857D		 Middle Valley sedimented spreading center 8°26′N, 128°43′W 2432 470/574/936 CORK 1991–1992;1996–present
139/858G
169/858G		 Middle Valley 48°27′N, 128°43′W 2426 258/274/433 CORK 1991–1993;1996-2000?
146/889C Cascadia prism (Vancouver Island) 48°42′N, 126°52′W 1326 385/259 (liner to 323)/385 CORK 1992–1993
146/892B Cascadia prism (Oregon) 44°41′N, 126°07′W 684 178/94 (liner to 146)/178 CORK 1992–1994
156/948D Barbados prism 15°32′N, 58°44′W 4949 538/535/538 CORK 1994–1995
156/949C Barbados prism 15°32′N, 58°43′W 5016 468/466/468 CORK 1994–1998
168/1024C JFR east flank (1.0 Ma) 47°55′N, 128°45′W 2612 152/166/176 CORK 1996–1999;2000–present
168/1025C JFR east flank (1.2 Ma) 47°53′N, 128°39′W 2606 101/102/148 CORK 1996–1999;2000–present?
168/1026B JFR east flank (3.6 Ma) 47°46′N, 127°46′W 2658 247/248/295 CORK 1996–19992004–present
168/1027C JFR east flank (3.6 Ma) 47°45′N, 127°44′W 2656 613/578/632 CORK 1996–present
174B/395A MAR west flank (7.3 Ma) 22°45′N, 46°05′W 4485 92/111/664 CORK 1997–present
195/1200C Mariana forearc 13°47′N, 146°00′E 2932 —/202/266 CORK 2001–2003
196/1173B Nankai Trough 32°15′N, 135°02′E 4790 1058/927/1058 ACORK 2001–present
196/808I Nankai Trough 32°21′N, 134°57′E 4676 731/728/756 ACORK 2001–present
—/504B CRR south flank (5.9 Ma) 01°14′N, 83°44′W 3474 275/276/2111 Wireline 2001–2002
—/896A CRR south flank (5.9 Ma) 01°13′N, 83°43′W 3459 179/191/469 Wireline —
205/1253A Costa Rica Trench 09°39′N, 86°11′W 4376 400/506/600 CORK-II 2002–present
205/1255A Costa Rica Trench 09°39′N, 86°11′W 4309 153/144/153 CORK-II 2002–present

Note: JFR = Juan de Fuca Ridge, MAR = Mid-Atlantic Ridge, CRR = Costa Rica Rift.

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