19 JULY 2012

NEW ZEALAND GAZETTE, No. 86

Geographical Features

Glendhu Ridge
41°42.00’S Latitude, 176°15.00’E Longitude. A north-east-south-west trending ridge with crest at depths of 1800m rising from 2250m above the Glendhu Trough to landward, located on the lower continental slope off the Wairarapa coast. Depicted on Palliser Chart©, Mitchell, 1988.

Glendhu Trough
41°40’S Latitude, 176°10’E Longitude. A trough with a broad floor at a depth of 3100m trending north-east-south-west, located on the lower continental slope off the Wairarapa coast. Depicted on Palliser Chart©, Mitchell, 1988.

Hauturu Ridge
36°31’S Latitude, 177°18’E Longitude. A north-east-south-west aligned ridge rising from a depth of 2650m to crest at 2300m, located on the southern side of the Ngātoro Basin, outer eastern Hauraki Gulf. Depicted on Cuvier Chart©, Wright, 1989.

Hikunui Ridge
36°35.00’S Latitude, 177°00.00’E Longitude. A north-east-south-west aligned ridge with a crest at its northern end of 2150m and at its southern end of 1300m. Located between Hikunui Seavalley to the north and Ngātoro Basin to the south, in the outer Hauraki Gulf/Bay of Plenty region. Depicted on Cuvier Chart©, Wright, 1989.

Hikurangi Channel
39°29.39’S Latitude, 179°01.25’W Longitude. A flat-floored channel extending eastward from offshore Mahia Peninsula, at least 1500km long and up to 10km wide, with levees 250m deep. Incised at the southern end of the Hikurangi Plateau. Depicted on Lewis 1994; Lachlan Chart©, Carter 1995; CANZ 1997 (NZ Region Chart).

Hokitika Canyon
42°08.20’S Latitude, 169°19.30’E Longitude. A canyon complex originating off the Hokitika River, West Coast, South Island, and wandering across the continental shelf and slope until merging with the Cook Canyon to form the Cook Channel. Depicted on Brodie, 1964a; Bounty Chart©, Krause & Cullen, 1970; Hokitika Chart©, Eade, 1972.

Honeycomb Trough
41°44’S Latitude, 176°15’E Longitude. A trough descending to a depth of 2500m, located between two ridges, Glendhu to the north and Honeycomb to the south, Wairarapa slope, North Island. Depicted on Palliser Chart©, Mitchell, 1988.

Huia Terraces
32°48’S Latitude, 173°48’E Longitude; 31°54’S Latitude, 173°30’E Longitude; 32°00’S Latitude, 173°00’E Longitude; 32°48’S Latitude, 173°12’E Longitude. A terrace between 2000m and 2750m, located on the south-west corner of the South Fiji Basin between Northland Plateau and Three Kings Ridge. Depicted on CANZ 1997; Herzer et al., 2009.

Hurunui Canyon
42°55.84’S Latitude, 173°43.82’E Longitude. A canyon extending from a depth of approximately 200–1000m, incised into the continental slope off northern Canterbury, it extends north-eastwards to the southern end of the Hikurangi Trough. Depicted on Pegasus Chart©, Herzer & Carter, 1983.

Koruenga Knoll
36°26.33’S Latitude, 176°52.07’E Longitude. An isolated conical seamount with an area of 5.50 sq kms, rising to 1150m from a depth of 1800m, one of a group of knolls at the northern end of the Alderman Trough in the outer Bay of Plenty region, 113km east of Coromandel Peninsula. Depicted on Cuvier Chart©, Wright, 1989.

Lachlan Banks
39°39’S Latitude, 177°34’E Longitude. A series of banks rising from a depth of approximately 150m to a minimum recorded depth of 90m, located on the outer continental shelf off Hawke’s Bay, 40km east of Cape Kidnappers. Depicted on NZ 23; NZ 26; NZ 56; Pantin, 1963, 1966; Mahia Chart©, Pantin, 1966; Turnagain Chart©, Lewis, 1976.

Lachlan Ridge
39°33’S Latitude, 177°45’E Longitude. A ridge with a relief of approximately 30m above a 100–140m deep seabed, trending south-west from a point approximately 15km south of Mahia Peninsula, for a distance of about 25km, on the outer continental shelf off Hawke’s Bay. Depicted on NZ 23; NZ 26; NZ 56; Pantin, 1963, 1966; Mahia Chart©, Pantin, 1966; Turnagain Chart©, Lewis, 1976; Cook Chart©, Baldwin & Lewis, 1991.

L’Atalante Seamount
31°52.60’S Latitude, 176°44.47’W Longitude. An isolated conical seamount with an area of 500.40 sq kms, rising to 3750m from a depth of 5750m, located 781km north-east of Tauranga, Bay of Plenty, between the Kermadec and Louisville Ridges. Depicted on Esperance Chart©, Wright et al., 1997.

Matakaoa Ridge
37°23.50’S Latitude, 178°37’E Longitude. A ridge located north from East Cape peninsula. Depicted on East Cape Chart©, Blackmore and Wright, 1996.

Matatara Knoll
37°12’S Latitude, 176°58.02’E Longitude. An isolated conical knoll with an area of 13.70 sq kms, rising to 750m from a depth of 1200m. Located in the outer Bay of Plenty region 83km north-east of Tauranga, Bay of Plenty. Depicted on Bay of Plenty Chart©, Pantin, et al., 1973; Bay of Plenty Chart©, Wright, 1989.

Moeraki Channel
43°36.70’S Latitude, 167°25.80’E Longitude. A channel that forms a 5km wide 500–800m incised flat-bottomed canyon running across the continental shelf and slope until merging with the Haast Channel on the deep ocean floor. Located on the outer reaches of the Moeraki canyon complex, originating off the Moeraki River, West Coast. Depicted on West Coast Canyons Chart©, Neil 2009; Beggs et al., 2006; Neil et al., 2008.