Notice of Decisions to Alter, Adopt and Discontinue Undersea Feature Names
Pursuant to sections 10(1)(d), 25 and 26 of the New Zealand Geographic Board (Ngā Pou Taunaha o Aotearoa) Act 2008, the New Zealand Geographic Board Ngā Pou Taunaha o Aotearoa (“Board”) hereby gives notice of 21 altered and adopted official undersea feature names, and one discontinued undersea feature name, beyond New Zealand’s 12 nautical mile territorial limit, as described in the Schedule below.
The Board’s final determinations on these undersea feature names took effect on 20 May 2019.
|
Altered, Adopted or Discontinued Undersea Feature Name |
Undersea Feature Type |
Description |
Coordinates |
|
Aiguilles Canyon |
Canyon |
An undersea canyon approximately 60km northeast of Great Barrier Island (Aotea Island). Depicted on Cuvier Chart©, Wright, 1989. Adopted as official. |
-35.6431, 176.041 |
|
Barrier Bank |
Bank |
A flat-topped bank approximately 55km northeast of Great Barrier Island (Aotea Island). Depicted on Poor Knights Chart©, Eade, 1971. Adopted as official. |
-35.6339, 175.8059 |
|
Barrier Ridge |
Ridge |
A small west-east orientated ridge approximately 35km north of Great Barrier Island (Aotea Island). Depicted on Poor Knights Chart©, Mitchell, 1995. Alteration from the unofficial name, Barrier Knoll. |
-35.75, 175.4933 |
|
Brodie Seamount |
Seamount |
A seamount approximately 210km east of East Cape. Published in two official documents. Adopted as official. |
-37.4398, -178.9632 |
|
Endeavour Banks |
Banks |
Published on Pukaki Chart©, Summerhayes, 1966. The feature is already named Endeavour Spur (official name by New Zealand Gazette, 16 December 2010, No. 173, page 4275) so is discontinued. |
-53.5, 174.25 |
|
Fiordland Trench |
Trench |
A deep trench west of the west branch of the Alpine Fault, south of Milford Sound/Piopiotahi. Published in two official documents. Adopted as official. |
-45.2239, 166.2966 |
|
Haedal Seamounts |
Seamounts |
Two dome-shaped seamounts in the Southern Ocean, approximately 360km east of the Balleny Islands. Published in the GEBCO Gazetteer. Adopted as official. |
-67.187, 173.032 |
|
Kāretu Seavalleys |
Valleys |
A series of small valleys approximately 115km west of Cape Reinga / Te Rerenga Wairua. Depicted on Three Kings Chart©, Mitchell & Eade, 1990. Adopted as official. |
-34.3504, 171.4374 |
|
Katz Guyot |
Guyot |
A guyot on Hikurangi Plateau, approximately 420km east of Gisborne. Published in two official documents. Alteration from the unofficial name, Katz Seamount. |
-38.8082, -177.0013 |
|
Matheson Bank |
Bank |
A small bank on Chatham Rise, approximately 200km west of Chatham Island. Depicted on Bounty Chart©, Krause & Cullen, 1970. Adopted as official. |
-43.9333, -179.25 |
|
Monowai Caldera |
Caldera |
A roughly circular caldera on Kermadec Ridge, approximately 1340km northeast of North Cape (Otou). Assigning a new name to an unnamed undersea feature. |
-25.8, -177.14 |
|
North Bounty Channel |
Sea Channel |
The northernmost of three western tributaries of Bounty Channel, approximately 150km east-northeast of Dunedin. Depicted on Otago Chart©, Brodie, 1969. Adopted as official. |
-45.8882, 172.8719 |
|
Pantin Bank |
Bank |
A bank forming the northern end of Ritchie Ridge, approximately 50km east-southeast of Mahia Peninsula. Depicted on Mahia Chart©, Arron & Lewis, 1992. Adopted as official. |
-39.3380, 178.4587 |
|
Rakaia Seavalley |
Valley |
A valley approximately 70km south of Banks Peninsula. Depicted on Ellesmere Chart©, Herzer, 1980. Adopted as official. |
-44.5939, 172.9464 |
|
Rapuhia Scarp |
Scarp |
A northwest-southeast trending continuous precipitous scarp, approximately 330km northeast of East Cape on the eastern margin of Hikurangi Plateau. Depicted on Lachlan Chart©, Carter, 1995. Adopted as official. |
-36.492, -177.9558 |
|
Satgat Seamount |
Seamount |
A dome shaped seamount in the Southern Ocean, approximately 450km east of the Balleny Islands. Published in the GEBCO Gazetteer. Adopted as official. |
-67.274, 175.1727 |
|
Scott Guyot |
Guyot |
A guyot in the Southern Ocean, approximately 51km southeast of Scott Island. Assigning a new name to an unnamed undersea feature. |
-67.8333, -179.5 |
|
Seorak Seamount |
Seamount |
A dome shaped seamount in the Southern Ocean, approximately 400km east of the Balleny Islands. Published in the GEBCO Gazetteer. Adopted as official. |
-67.5587, 174.1867 |
|
South Bounty Channel |
Sea Channel |
The southernmost of three western tributaries of Bounty Channel, approximately 150km southeast of Dunedin. Depicted on Bounty Chart©, Krause & Cullen, 1970. Adopted as official. |
-46.5755, 172.4817 |
|
Taranaki Terrace |
Terrace |
A nearly flat terrace approximately 150km west-southwest of Cape Egmont. Depicted on Egmont Chart©, van der Linden, 1966. Alteration from the unofficial name, Egmont Terrace. |
-39.6545, 172.2352 |
|
Te Kapu Bank |
Bank |
A bank separated from the continental slope by Ritchie Ridge, approximately 60km east-southeast of Mahia Peninsula. Depicted on Mahia Chart©, Arron & Lewis, 1992. Adopted as official. |
-39.3245, 178.5872 |
|
Whenuanuipapa Plain |
Plain |
A large flat area of seafloor beyond the foot of the continental slope, between East Cape and Mahia Peninsula. Depicted on Cook Chart©, Baldwin & Lewis, 1991. Adopted as official. |
-38.2928, -179.0113 |
Dated at Wellington this 20th day of May 2019.
W. K. SHAW, Secretary, New Zealand Geographic Board Ngā Pou Taunaha o Aotearoa.