✨ Undersea Feature Names
NEW ZEALAND GAZETTE, No. 46 — 26 MAY 2016
North Chatham Slope Slope
42°45′S Latitude, 178°E Longitude. The steep northern slope of Chatham Rise that forms the southern boundary of Hikurangi Trough. It trends east–west for 1000km, and rises from a depth of approximately 2500m to approximately 500m. Depicted on Bounty Chart©, Krause & Cullen, 1970. Adopted as official.
Oliver Knoll Knoll
32°25.60′S Latitude, 179°40.30′W Longitude. A volcanic knoll that rises from a depth of 3000m to 2200m, located on the Kermadec Arc. Alteration from Oliver Volcano, which was published in an official document in 2006.
Ōmakere Ridge Ridge
40°02′S Latitude, 177°51′E Longitude. A northeast–southwest trending ridge that rises to a summit of 1750m, located on the middle part of the continental slope, approximately 75km offshore from Cape Kidnappers. Alteration from Ōmakere Ridge, which was depicted on Turnagain Chart©, Lewis, 1976.
Pāhaoa Canyon Canyon
41°35′S Latitude, 175°45′E Longitude. A canyon incised into the outer continental shelf and continental slope, on the flank of Hikurangi Trough, offshore from the southeast coast of the North Island. It rises from a depth of 2500m to 50m. Alteration from Pahaua Canyon, which was depicted on Palliser Chart©, Mitchell, 1988.
Paoanui Ridge Ridge
40°10.95′S Latitude, 177°52′E Longitude. A northeast–southwest trending ridge located approximately 80km offshore from the east coast of the North Island on the lower continental slope. The crest is at a depth of 1500m to 1600m, which is approximately 500m above the more shallow areas on either side. Depicted on Turnagain Chart©, Lewis, 1976. Adopted as official.
Paoanui Trough Trough
40°12′S Latitude, 177°45′E Longitude. A northeast–southwest trending trough located approximately 70km offshore from the east coast of the North Island on the middle continental slope. The floor of the trough is generally between 1800m and 2000m deep but reaches a maximum depth of 2080m. Depicted on Turnagain Chart©, Lewis, 1976. Adopted as official.
Pōrangahau Ridge Ridge
40°32′S Latitude, 177°39′E Longitude. A northeast–southwest trending ridge located approximately 80km offshore from the east coast of the North Island on the lower continental slope. The ridge rises approximately 200m above a depression landward from a minimum depth of 1582m. Alteration from Porangahau Ridge, which was depicted on Turnagain Chart©, Lewis, 1976.
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NZ Gazette 2016, No 46
✨ LLM interpretation of page content
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Notice of Decisions to Alter, Approve, Assign and Adopt Undersea Feature Names
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🗺️ Lands, Settlement & Survey26 May 2016
Undersea Features, Geographic Names, Alteration, Approval, Adoption, New Zealand Geographic Board, Ngā Pou Taunaha o Aotearoa, Ross Dependency, Antarctica, Balleny Islands, Scott Island, Aldermen Islands, Kermadec Arc, Three Kings Ridge