Altered, Adopted or Discontinued Undersea Feature Name

Undersea Feature Type

Description

Coordinates

(latitude, longitude)

Akaroa Valleys

Valleys

A series of sea valleys approximately 95km southeast of the entrance to Akaroa Harbour. Depicted on Banks Chart©, Herzer, 1977. Alteration from the unofficial name, Akaroa Sea Valleys.

-44.6006, 173.6342

Akopov Seamounts

Seamounts

Three seamounts approximately 319km east of Sturge Island, in the Balleny Islands. Published in the GEBCO Gazetteer. Adopted as official.

-67.7401, 172.3748

Anashkin Seamount

Seamount

A seamount approximately 435km northeast of Cape Adare, Antarctica. Published in the GEBCO Gazetteer. Adopted as official.

-68.3167, 177.5667

Antipodes Scarp

Scarp

Published in an official document. The feature is already named Campbell Escarpment (official name by New Zealand Gazette, 16 December 2010, Issue No. 173, page 4275) and so is Discontinued.

-48, -179

Bellingshausen Basin

Basin

A basin extending from the southwest coast of Chile into the Southern Ocean north of King Edward VII Land, Antarctica. Published in the GEBCO Gazetteer. Adopted as official.

-71, -160

Bligh Valley

Valley

A small sea valley that extends west of the Bounty Islands. Depicted on Bounty Island Chart©, Cullen, 1969. Alteration from the unofficial name, Bligh Sea Valley.

-47.7283, 178.7

Bounty Shelf

Shelf

The shelf adjacent to the Bounty Islands. Depicted on Bounty Island Chart©, Cullen, 1969. Adopted as official.

-47.5833, 179.25

Cathedral Banks

Banks

An area of irregular banks trending north-northeast, south-southwest, on Campbell Plateau approximately 80km south-east of Auckland Islands. Depicted on Auckland Bathymetry Chart©, Summerhayes, 1967. Adopted as official.

-51.5, 166.75

Cook Fracture Zone

Fracture Zone

A scarp-like northwest trending rectilinear feature north of New Zealand, which separates and offsets Three Kings Ridge with Loyalty Ridge. Published in an official document. Adopted as official.

-27, 172.1833

Dolgorae Hills

Hills

Two dolphin-shaped hills within Adare Basin in the Southern Ocean, approximately 128km northeast of Cape Adare, Antarctica. Published in the GEBCO Gazetteer. Adopted as official.

-70.6333, 173.1

Gungpa Hills

Hills

Four hills in the Ross Sea, approximately 100km north of Ross Island, Antarctica. Published in the GEBCO Gazetteer. Adopted as official.

-76.4583, 168.37

Hikurua / de Surville Canyon

Canyon

A narrow northeast trending canyon approximately 30km north of northernmost New Zealand. Depicted on North Cape Chart©, Mitchell & Eade, 1990. Alteration from the unofficial name, Surville Canyon.

-34.1073, 173.0869

Hooker Basin

Basin

A basin in the Ross Sea, approximately 28km north of Cape Hooker, Victoria Land, Antarctica. Published in the GEBCO Gazetteer. Adopted as official.

-70.3855, 166.6461

Kalyuzhnyy Hill

Hill

A hill approximately 145km east of Sturge Island, in the Balleny Islands. Published in the GEBCO Gazetteer. Adopted as official.

-67.2967, 168.27

Kkotsin Knoll

Knoll

A knoll in the Southern Ocean, approximately 1490km south-east of Campbell Island / Motu Ihupuku. Published in the GEBCO Gazetteer. Adopted as official.

-61.6033, -172.4833

Lavaud Valley

Valley

A sea valley approximately 110km southeast of Banks Peninsula. Depicted on Banks Chart©, Herzer, 1977. Alteration from Lavaud Sea Valleys (official name by New Zealand Gazette, 28 May 2015, Issue No. 58, Notice No. 2015-ln3063).

-44.5833, 173.9167

Moeraki Canyon

Canyon

A canyon incised into the upper continental shelf, approximately 55km north-east of Otago Peninsula. Depicted on Oamaru Chart©, Carter & Carter, 1981. Adopted as official.

-45.5, 171.35

North Ritchie Trough

Trough

A north-south trending trough that has a wide floor, approximately 45km east-southeast of Mahia Peninsula. Depicted on Mahia Chart©, Arron & Lewis, 1991 Adopted as official.

-39.3804, 178.3708

Papanui Canyon

Canyon

A canyon incised into the outer continental shelf and upper continental slope between 20km and 35km offshore from Otago Peninsula. Depicted on Otago Chart©, Carter, 1986. Adopted as official.

-45.8716, 171.0805

Pārengarenga Canyons

Canyons

Two canyons on the upper continental slope, extending north-eastwards from approximately 10km east of North Cape (Otou). Depicted on North Cape Chart©, Mitchell & Eade, 1990. Alteration from the unofficial name, Parengarenga Canyons.

-34.3354, 173.3261

Pickersgill Ridge

Ridge

An isolated ridge trending northeast-southwest, in Tasman Basin approximately 380km south-southwest of the south-west coast of the South Island. Depicted on Resolution Chart©, van der Linden & Hayes, 1972. Alteration from the unofficial name, Pickersgill Seamount.

-46.6693, 161.7374

Scott Island Bank

Bank

The bank feature does not exist. No longer an official undersea feature name (valid by sections 35(1) and (2) of the NZGB Act 2008: Provisional Gazetteer, 1958), and so is Discontinued.

-67.75, -179.9167

Shirase Bank

Bank

A bank in the Ross Sea, Antarctica, offshore from Shirase Coast. Published in the GEBCO Gazetteer. Adopted as official.

-76.6667, -158

South Ritchie Trough

Trough

A north-northeast, south-southwest trending trough that reaches a depth of 1050m, approximately 52km southeast of Mahia Peninsula. Depicted on Mahia Chart©, Arron & Lewis, 1992. Adopted as official.

-39.6211, 178.2674

Ssangdungi Hills

Hills

Two hills in the Southern Ocean, approximately 40km north-east of Scott Island. Published in the GEBCO Gazetteer. Adopted as official.

-67.2683, -179.0517

Terror Fracture Zone

Fracture Zone

A northwest-southeast trending fracture zone in the Southern Ocean, approximately 730km northeast of the Balleny Islands. Published in the GEBCO Gazetteer. Adopted as official.

-64.511, 178.506

Viti Canyons

Canyons

Three canyons on the upper continental slope, approximately 115km west-northwest of Cape Egmont. They extend westwards towards the southern end of New Caledonia Trough. Depicted on Cook Chart©, Baldwin & Lewis, 1991. Adopted as official.

-38.9726, 172.4458

West Ngātoro Knolls

Knolls

An isolated conical knoll that is part of the northernmost group of knolls on the western side of Tauranga Trough. Depicted on Bay of Plenty Chart©, Wright, 1989. Alteration from the unofficial name, West Ngatoro Knoll.

-36.9625, 176.8507