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Mount Tarawera
Mount Tarawera is a volcano on the North Island of New Zealand within the older but volcanically productive Ōkataina Caldera. Located 24 kilometres southeast of Rotorua, it consists of a series of rhyolitic lava domes that were fissured down the middle by an explosive basaltic eruption in 1886. This eruption was one of New Zealand's largest historical eruptions, and killed an estimated 120 people. The fissures run for about northeast-southwest. The volcano's component domes include Ruawahia Dome (the highest at 1,111 metres), Tarawera Dome and Wahanga Dome. It is surrounded by several lakes, most of which were created or drastically altered by the 1886 eruption. These lakes include Lakes Tarawera, Rotomahana, Rerewhakaaitu, Ōkataina, Ōkareka, Tikitapu / Blue and Rotokākahi / Green. The Tarawera River runs northeastwards across the northern flank of the mountain from Lake Tarawera. In 2000, the mountain was ceded to the Ngāti Rangitihi sub-tribe of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North Island
The North Island, also officially named Te Ika-a-Māui, is one of the two main islands of New Zealand, separated from the larger but much less populous South Island by the Cook Strait. The island's area is , making it the world's 14th-largest island. The world's 28th-most-populous island, Te Ika-a-Māui has a population of accounting for approximately % of the total residents of New Zealand. Twelve main urban areas (half of them officially cities) are in the North Island. From north to south, they are Whangārei, Auckland, Hamilton, Tauranga, Rotorua, Gisborne, New Plymouth, Napier, Hastings, Whanganui, Palmerston North, and New Zealand's capital city Wellington, which is located at the south-west tip of the island. Naming and usage Although the island has been known as the North Island for many years, in 2009 the New Zealand Geographic Board found that, along with the South Island, the North Island had no official name. After a public consultation, the board offic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Ōkataina
Lake Ōkataina (also spelled Okataina; mi, Te Moana i kataina ā Te Rangitakaroro or ) is the northernmost and largest of four smaller lakes lying between Lake Rotorua and Lake Tarawera in the Bay of Plenty Region of New Zealand's North Island. The others are Lake Rotokakahi (Green Lake), Lake Tikitapu (Blue Lake), and Lake Ōkareka. All lie within the Ōkataina caldera, along its western edge. Unlike many other lakes in the region, Lake Ōkataina is completely encircled by native forest. It also has no inlets or outlets. Perhaps as a result, over the past 30 years, the level of the lake has risen and fallen in a range of about 5 metres. The New Zealand Ministry for Culture and Heritage gives a translation of "place of laughter" for ''Ōkataina''. The lake can be accessed by road via Hinehopu on the southern shores of Lake Rotoiti. At the end of the road there is a large sandy beach, a massive grassed area and the privately owned Okataina Lodge. Due to chan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hawke Bay
Hawke Bay ( mi, Te Matau-a-Māui), formerly named ''Hawke's Bay'', is a large bay on the east coast of the North Island of New Zealand, surrounded by the Hawke's Bay region. It stretches from Māhia Peninsula in the northeast to Cape Kidnappers / Te Kauwae-a-Māui in the southwest, a distance of some . Captain James Cook, sailing in HMS ''Endeavour'', entered the bay on 12 October 1769. After exploring it, he named it for Sir Edward Hawke, First Lord of the Admiralty, on 15 October 1769, describing it as some 13 leagues (about ) across. Hawke had decisively defeated the French at the Battle of Quiberon Bay in 1759. This part of the New Zealand coast is subject to tectonic uplift, with the land being raised out of the sea. For this reason, the coastal land in this area has significant marine deposits, with both marine and land dinosaur fossils having been found inland. The Napier earthquake of 3 February 1931 resulted in several parts of the seabed close to the city of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coromandel Peninsula
The Coromandel Peninsula ( mi, Te Tara-O-Te-Ika-A-Māui) on the North Island of New Zealand extends north from the western end of the Bay of Plenty, forming a natural barrier protecting the Hauraki Gulf and the Firth of Thames in the west from the Pacific Ocean to the east. It is wide at its broadest point. Almost its entire population lives on the narrow coastal strips fronting the Hauraki Gulf and the Bay of Plenty. In clear weather the peninsula is clearly visible from Auckland, the country's biggest city, which lies on the far shore of the Hauraki Gulf, to the west. The peninsula is part of the Thames-Coromandel District of the Waikato region. Origin of the name The Māori name for the Coromandel comes from the Māori legend of Māui and the Fish, in which the demigod uses his hook to catch a great fish from the depths of te Moana-Nui-a-Kiwa (The Pacific Ocean). ''Te Tara-O-Te-Ika-A-Māui'' means 'The spine of Māui's fish'. The spine can be understood to be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northland Peninsula
The Northland Peninsula, called the North Auckland Peninsula in earlier times, is in the far north of the North Island of New Zealand. It is joined to the rest of the island by the Auckland isthmus, a narrow piece of land between the Waitematā Harbour and the Manukau Harbour in the middle of the Auckland metropolitan area. The peninsula is not conterminous with the local government area of Northland Region, which occupies the northern 80% of the peninsula. The southern section of the peninsula is administratively part of the Auckland Region. Geology The peninsula formed as an island 22 million years ago, when the area was uplifted due to interactions between the Pacific Plate and Australian Plate. Between 25 and 22 million years ago, Northland and the East Cape were adjacent, with the East Cape moving south-east due to tectonic forces. Much of the land of Northland is an allochthon, a large block of land formed elsewhere and moved into its current position. When Northland was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cobalt In Biology
Cobalt is essential to the metabolism of all animals. It is a key constituent of cobalamin, also known as vitamin B, the primary biological reservoir of cobalt as an ultratrace element. Bacteria in the stomachs of ruminant animals convert cobalt salts into vitamin B, a compound which can only be produced by bacteria or archaea. A minimal presence of cobalt in soils therefore markedly improves the health of grazing animals, and an uptake of 0.20 mg/kg a day is recommended because they have no other source of vitamin B. Proteins based on cobalamin use corrin to hold the cobalt. Coenzyme B12 features a reactive C-Co bond that participates in the reactions. In humans, B12 has two types of alkyl ligand: methyl and adenosyl. MeB12 promotes methyl (−CH3) group transfers. The adenosyl version of B12 catalyzes rearrangements in which a hydrogen atom is directly transferred between two adjacent atoms with concomitant exchange of the second substituent, X, which may be a carbon ato ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dense Rock Equivalent
Dense-rock equivalent (DRE) is a volcanologic calculation used to estimate volcanic eruption volume. One of the widely accepted measures of the size of a historic or prehistoric eruption is the volume of magma ejected as pumice and volcanic ash, known as tephra during an explosive phase of the eruption, or the volume of lava extruded during an effusive phase of a volcanic eruption. Eruption volumes are commonly expressed in cubic kilometers (km3). Historical and geological estimates of tephra volumes are usually obtained by mapping the distribution and thickness of tephra deposits on the ground after the eruption is over. For historical volcanic explosions, further estimates must be made of tephra deposits that might have changed significantly over time by other geological processes including erosion. Tephra volumes measured in this way must then be corrected for void spaces (vesicles – bubbles within the pumice, empty spaces between individual pieces of pumice or ash) to get a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Māori People
The Māori (, ) are the indigenous Polynesian people of mainland New Zealand (). Māori originated with settlers from East Polynesia, who arrived in New Zealand in several waves of canoe voyages between roughly 1320 and 1350. Over several centuries in isolation, these settlers developed their own distinctive culture, whose language, mythology, crafts, and performing arts evolved independently from those of other eastern Polynesian cultures. Some early Māori moved to the Chatham Islands, where their descendants became New Zealand's other indigenous Polynesian ethnic group, the Moriori. Initial contact between Māori and Europeans, starting in the 18th century, ranged from beneficial trade to lethal violence; Māori actively adopted many technologies from the newcomers. With the signing of the Treaty of Waitangi in 1840, the two cultures coexisted for a generation. Rising tensions over disputed land sales led to conflict in the 1860s, and massive land confiscations, to whic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Te Arawa
Te Arawa is a confederation of Māori iwi and hapu (tribes and sub-tribes) of New Zealand who trace their ancestry to the Arawa migration canoe (''waka'')."Te Arawa" ''Te Ara – the Encyclopedia of New Zealand''. The tribes are based in the and Bay of Plenty areas and have a population of around 40,000. History The history of the Te Arawa people is inextricably linked to the Arawa canoe. The Te Arawa tribes have a close historical interest in the lakes around Rotorua. Many Te Arawa men fought for the Colonial Government in the |
Ngāti Rangitihi
Ngāti Rangitihi is a Māori iwi of New Zealand, located in the Bay of Plenty. The tribe is part of the greater Te Arawa confederation of tribes. Nga pumanawa e waru o Te Arawa, the 8 beating hearts of Te Arawa derives from the 8 children of the eponymous Rangitihi. From Rangitihi come the main tribal groups of Te Arawa, but Ngāti Rangitihi take their name rightly from Rangitihikahira, who was the daughter of Apumoana, son of Rangitihi. She married Mahi, who was the son of Rangiaohia, another son of Rangtihi. Ngāti Rangitihi origins are from the union of Rangitihikahira and Mahi's marriage. The recognised rohe (tribal area) of Ngāti Rangitihi was submitted to the Waitangi Tribunal in evidence during an urgent hearing in February 2002. It was not challenged by the legal Counsel for the Crown, Tuwharetoa ki Kawerau or Ngāti Awa who were all present at the time. It extends from the East side of the Tarawera River mouth to Otamarakau, inland to Lake Rotoehu, through Lake Roto ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tarawera River
The Tarawera River is in the Bay of Plenty Region in the North Island of New Zealand. It flows from Lake Tarawera, northeastwards across the northern flanks of the active volcano Mount Tarawera, and past the town of Kawerau before turning north, reaching the Bay of Plenty west of Edgecumbe. The Tarawera Falls on the river are considered to be quite spectacular. Environmental issues The Tasman Pulp and Paper Mill, now owned by Norske Skog, has been discharging waste into the river since 1955. Local residents have erected signposts labelling the river as the "Black Drain" since the 1990s. The dark colour is due to the presence of pollution from farms, sewage and stormwater but it is predominantly from pulp and paper mill effluent. As of 1997, pulp and paper mills were discharging over 160 million litres of industrial waste into the river per day. By 2006, the oxygen levels in the river had reached a level where fish could survive, however the water colour was still dark. Since ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
