16 DECEMBER 2010

NEW ZEALAND GAZETTE, No. 173

Southwest Pacific Basin

Basin
23°00.00'S, 170°00.00'W; 42°00.00'S, 132°00.00'W; 54°00.00'S, 170°00.00'E. South-east of New Zealand. A deep basin bounded on the west by the Tonga and Kermadec Trenches, the Subantarctic Slope and the Macquarie Ridge, in the southeast by the Pacific-Antarctic Ridge, and in the north-east by the chain of Polynesian Islands that extends from Easter Island, through Tuamoto Islands, the Society Islands, the northern Cook Islands, and the Tokelau Islands to Samoa. Vast triangular abyssal basin. Depicted on Wiseman & Ovey, 1954; Brodie & Hatherton 1958; Mammerickx et al., 1971 (Ch); Carter, 1980 (NZ Region Chart); CANZ, 1997 (NZ Region Chart).

Umitaka Seamount

Seamount
67°24.00'S, 167°12.00'E. East of Balleny Islands, Ross Dependency. Depicted on GEBCO 5.18.

Bollons Seamount

Seamount
49°47.52'S, 176°39.89'W. East of Campbell Plateau. A large isolated conical seamount formed from a rifted continental block. Depicted on GEBCO 5.12; INT 61; NZ 14060; NZ 14065; NZ 14061; NZ 14612; NZ 223F New Zealand & Adjacent Ocean Areas. 1:3,500,000; CANZ, 1997 (NZ Region Chart).

Borchgrevink Canyon

Canyon
70°15.00'S, 170°15.00'E. Ross Dependency. An undersea canyon on the continental rise east of Iselin Bank. Named in association with Borchgrevink Coast. Depicted on SCAR #1599.

Bowers Canyon

Canyon
71°55.00'S, 172°30.00'E. Ross Dependency. An undersea canyon west of Iselin Bank in the Ross Sea. Named in association with Bowers Glacier. Depicted on SCAR #1682; GEBCO 5.18.

Byrd Canyon

Canyon
75°30.00'S, 157°15.00'W. Ross Dependency. An undersea canyon. Depicted on SCAR #2152.

Campbell Plateau

Plateau
51°00.00'S, 170°00.00'E. The triangular, southern part of the New Zealand Plateau bounded by the North Bounty Slope to the north, the Antipodes Scarp (southern Subantarctic Slope) to the south-east, and by the Aucklands Slope to the west. From it rise the New Zealand Subantarctic islands. Depicted on GEBCO 5.14; INT 60; NZ 14060; NZ 14061; NZ 14065; NZ 27; NZ 28; NZ 29; NZ 31; NZ 223F New Zealand & Adjacent Ocean Areas. 1:3,500,000; Lawrence, 1967 (Ch); Summerhayes, 1967 (Campbell Chart); Summerhayes, 1967 (Auckland Islands Chart); Carter, 1980 (NZ Region Chart); CANZ, 1997 (NZ Region Chart).

Campbell Rise

Rise
52°30.00'S, 170°00.00'E. The rise on the Campbell Plateau, encompassing Campbell Island. Depicted on GEBCO 5.14; CANZ, 1997 (NZ Region Chart).

Challenger Plateau

Plateau
38°30.00'S, 168°40.00'E. The shoaler, south-eastern portion of the Lord Howe Rise, extending from the foot of the continental slope off western Cook Strait to the Bellona Gap. Depicted on GEBCO 5.10; INT 60; INT 600; INT 641; NZ 14060; NZ 14601; NZ 14065; NZ 21; NZ 24; NZ 25; NZ 223F; Eade & van der Linden, 1977 (Bellona Chart); CANZ, 1997 (NZ Region Chart).

Chatham Rise

Rise
43°30.00'S, 180°00.00'E. The ridge-like eastern part of the New Zealand Plateau, extending from 100km east of Banks Peninsula eastward for 1,400km. Named in association with the Chatham Islands. Depicted on GEBCO 5.10; INT 60; NZ 14600; NZ 14061; NZ 14065; NZ 26; Lawrence, 1967 (Ch); Carter, 1980 (NZ Region Chart); CANZ, 1997 (NZ Region Chart).

Colbeck Basin

Basin
77°00.00'S, 159°30.00'W. Ross Dependency. A deep undersea basin of the central Ross shelf. Named in association with Cape Colbeck. Depicted on SCAR #2817.

Colville Ridge

Ridge
29°30.00'S, 180°00.00'E. Northern New Zealand. Extends 300km north-eastwards from the lower continental slope off the Coromandel Peninsula. A 2500m deep saddle separates it from the South Fiji Ridge to the north. Depicted on GEBCO 5.10; INT 600; NZ 14600; NZ 14602; NZ 223F New Zealand & Adjacent Ocean Areas; van der Linden, 1968 (Three Kings Chart); Wright, 1989 (Cuvier Chart); Wright, 1990 (Havre Trough Chart); Carter, 1980 (NZ Region Chart); CANZ, 1997 (NZ Region Chart); NZ UNCLOS Submission (2008).

Crary Bank

Bank
75°00.00'S, 169°00.00'E. Ross Dependency. A north-east trending bank of the central Ross continental shelf. Named in association with Crary Ice Rise. Depicted on SCAR #3090; GEBCO 5.18; NZ 14065; NZ 14900.

Drygalski Basin

Basin
74°50.00'S, 166°30.00'E. Ross Dependency. An undersea basin. Named in association with Drygalski Ice Tongue. Depicted on SCAR #3899.

Emerald Basin

Basin
52°00.00'S, 163°30.00'E. A basin that lies between the Macquarie Ridge and the Campbell Plateau. Depicted on Summerhayes, 1967 (Auckland Chart); GEBCO 5.14.

Erebus Fracture Zone

Fracture Zone
63°00.00'S, 177°00.00'E; 65°30.00'S, 175°18.00'W; 67°30.00'S, 170°00.00'W. Ross Dependency. Depicted in GEBCO 5.14.

Franklin Shoal

Shoal
76°00.00'S, 169°00.00'E. Ross Dependency. Shoal named in association with Franklin Island. Depicted on SCAR #4923.

Glomar Challenger Basin

Basin
76°53.28'S, 176°26.16'W. Ross Dependency. An undersea basin. Depicted on GEBCO 5.18.