Taupō Fault Belt
The Taupō Fault Belt contains many almost parallel active faults, and is located in the Taupō Rift of the central North Island of New Zealand geographically between Lake Taupō and the lakes of Rotorua, Tarawera, Rotomahana and Rerewhakaaitu. The potential active fault density is very high, with only separating the north-east to south-west orientated normal fault strands on detailed mapping of part of the belt. The Waikato River bisects the western region of the belt. Geology The northern Taupō Fault Belt is in the area also referred to as either, the Paeroa Graben or the Kapenga Graben, between the Horohoro Fault and the Paeroa Fault. Aligned with the orientation of the modern Taupō Rift are multiple north-north-east trending normal faults. These include the Ngakuru Fault to the east with the Ngakuru Graben between it and the Whirinaki Fault. Within the wide Ngakuru Graben are also to the west the Maleme Fault (Zone), which as a zone also contains the Mangaete/Lakeside Fa ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Taupō
Taupō (), sometimes written Taupo, is a town located in the central North Island of New Zealand. It is situated on the edge of Lake Taupō, which is the largest freshwater lake in New Zealand. Taupō was constituted as a borough in 1953. It has been the seat of Taupō District Council since the council was formed in 1989. Taupō is the largest urban area of the Taupō District, and the second-largest urban area in the Waikato, Waikato region, behind Hamilton, New Zealand, Hamilton. It has a population of approximately Taupō is known for its natural beauty, with the surrounding area offering a range of outdoor recreational activities such as hiking, fishing, skiing, and water sports. Visitors can also enjoy a variety of attractions, including the Wairakei Power Station, Huka Falls, and the Tongariro National Park. Naming The name ''Taupō'' is from the Māori language and is a shortened version of ''Taupō-nui-a-Tia''. The longer name was first given to the cliff at Pākā B ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Horohoro Fault
The Horohoro Fault is in the old Taupō Rift of the central North Island of New Zealand and is associated with the spectacular Horohoro Cliffs. Geology Just south of Lake Rotorua, Horohoro mountain, a rhyolite dome, has very high cliffs in an apparent fault scarp that defines the western edge of the lower lying Paeroa Garben and its northern Kapenga Caldera. The Paeroa Garben's eastern edge is defined by the Paeroa Fault. The cliffs are composed of Mamaku ignimbrite from the Rotorua Caldera eruption and older ignimbrites and Rotorua rhyolite. This fault area of the Taupō Rift is controversial as the components of historic tectonic and volcanic contribution have led to debate. Some authors have also extended and widened the definition of the Ngakuru Graben, which is to the south, during this debate. The northern portion of the fault for the last 20,000 years is displacing at a low rate of up to 0.2 mm/yr but it is unknown if the southern portion is active. The far northe ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Taupō District
Taupō District is a territorial authority district in New Zealand. It covers 6,333 km² of land, and a further 610 km² of lake area, including Lake Taupō, New Zealand's largest lake, and Lake Rotoaira. The district stretches from the small town of Mangakino in the northwest to the Tongariro National Park in the south, and east into the Kaingaroa Forest. The district's population is largely located in the two main centres, Taupō and Tūrangi. Local government The district is governed by Taupō District Council. The vast majority of the district also falls within the jurisdiction of Waikato Regional Council, although parts are within the jurisdiction of the Bay of Plenty Regional Council and Manawatū-Whanganui Regional Council, and a tiny sliver is within the territory of the Hawke's Bay Regional Council. History Little is known about early Māori settlement near Taupō, although Ngāti Tūwharetoa have been the main iwi of the area for several hundred years ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Seismic Faults Of New Zealand
Seismology (; from Ancient Greek σεισμός (''seismós'') meaning "earthquake" and -λογία (''-logía'') meaning "study of") is the scientific study of earthquakes (or generally, quakes) and the generation and propagation of elastic waves through planetary bodies. It also includes studies of the environmental effects of earthquakes such as tsunamis; other seismic sources such as volcanoes, plate tectonics, glaciers, rivers, oceanic microseisms, and the atmosphere; and artificial processes such as explosions. Paleoseismology is a related field that uses geology to infer information regarding past earthquakes. A recording of Earth's motion as a function of time, created by a seismograph is called a seismogram. A seismologist is a scientist who works in basic or applied seismology. History Scholarly interest in earthquakes can be traced back to antiquity. Early speculations on the natural causes of earthquakes were included in the writings of Thales of Miletus (), Anax ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Mafic
A mafic mineral or rock is a silicate mineral or igneous rock rich in magnesium and iron. Most mafic minerals are dark in color, and common rock-forming mafic minerals include olivine, pyroxene, amphibole, and biotite. Common mafic rocks include basalt, diabase and gabbro. Mafic rocks often also contain calcium-rich varieties of plagioclase feldspar. Mafic materials can also be described as ferromagnesian. History The term ''mafic'' is a portmanteau of "magnesium" and "ferric" and was coined by Charles Whitman Cross, Joseph P. Iddings, Louis V. Pirsson, and Henry Stephens Washington in 1912. Cross' group had previously divided the major rock-forming minerals found in igneous rocks into ''salic'' minerals, such as quartz, feldspars, or feldspathoids, and ''femic'' minerals, such as olivine and pyroxene. However, micas and aluminium-rich amphiboles were excluded, while some calcium minerals containing little iron or magnesium, such as wollastonite or apatite, were included in t ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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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. While the 1886 eruption was basaltic, study has shown there was only a small basalt component to the previous recent rhyolitic predominant eruptions. 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 include Lakes Tarawera, Rotomahana, Rerewhakaaitu, Ōkataina, Ōkareka, Tikitapu / Blue and Rotokākahi / Green. The Tarawera River runs nort ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Whakaari / White Island
Whakaari / White Island (, , lit. "the dramatic volcano"), also known as White Island or Whakaari, is an active andesite stratovolcano situated from the east coast of the North Island of New Zealand, in the Bay of Plenty. The island covers an area of approximately , which is just the peak of a much larger submarine volcano. The island is New Zealand's most active volcanic cone, cone volcano, and has been built up by continuous volcanic activity over the past 150,000 years. The nearest mainland towns are Whakatāne and Tauranga. The island has been in a nearly continuous stage of releasing volcanic gas at least since it was sighted by James Cook in 1769. Whakaari erupted continually from December 1975 until September 2000, and also erupted in 2012, 2016, and 2019. Sulphur was mined on the island until the 1930s. Ten miners were killed in 1914 when part of the crater wall collapsed. 2019 Whakaari / White Island eruption, A large eruption occurred at 14:11 on 9 December 2019 ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Whakatāne Graben
The Whakatāne Graben (also Whakatane Graben) is a predominantly normal faulting tectonic feature of the northeastern aspect of the young, modern Taupō Rift in New Zealand. At the coast it is widening by about /year. This very geologically active graben was the site of the 1987 Edgecumbe earthquake, which caused up to of land subsidence. The discontinuity in the Taupō Volcanic Zone's faults imposed by the highly active Ōkataina Volcanic Centre, geography and geology mean the graben is usually regarded as including the actively expanding and lowering region onshore extending towards the coast. Some scientists have limited the Whakatāne Graben to only the offshore continuation of the Taupō Rift. Geography The graben extends on shore from the west of the town of Kawerau to the coast at Matatā in the north and Whakatāne in the south. It is drained by the Tarawera River to the north and the Rangitaiki River to the south. The volcano of Putauaki (Mount Edgecumbe) is towar ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Ōkataina Caldera
Ōkataina Caldera (Ōkataina Volcanic Centre, also spelled Okataina) is a volcano, volcanic caldera and its associated volcanoes located in Taupō Volcanic Zone of New Zealand's North Island. It has several actual or postulated sub calderas. The Ōkataina Caldera is just east of the smaller separate Rotorua Caldera and southwest of the much smaller Rotomā Caldera, Rotomā Embayment which is usually regarded as an associated volcano. It shows high rates of explosive rhyolite, rhyolitic volcanism although its last eruption was basaltic. The postulated Haroharo Caldera contained within it has sometimes been described in almost interchangeable terms with the Ōkataina Caldera or volcanic complex or centre and by other authors as a separate complex defined by gravitational and magnetic features..Possibly started from with the author presuming that certain ignimbrites came from this source. The term Haroharo Caldera was increasingly used in academic papers in the 1970's and 1980's but ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Taupō Volcano
Lake Taupō, in the centre of New Zealand's North Island, fills the caldera of the Taupō Volcano, a large rhyolitic supervolcano. This huge volcano has produced two of the world's most powerful eruptions in geologically recent times. The volcano is in the Taupō Volcanic Zone within the Taupō Rift, a region of rift volcanic activity that extends from Mount Ruapehu, Ruapehu in the south, through the Taupō District, Taupō and Rotorua Lakes, Rotorua districts, to Whakaari / White Island, in the Bay of Plenty. ImageSize = width:320 height:800 PlotArea = right:50 top:10 left:50 bottom:10 DateFormat = yyyy TimeAxis = orientation:vertical order:reverse Period = from:-10000 till:2050 AlignBars = early ScaleMajor = unit:year increment:1000 start:-10000 Colors = id:canvas value:rgb(1,1,0.85) BackgroundColors = canvas:canvas PlotData = width:15 color:white bar:test from:-10000 till:1200 # Pre Maori PlotData = width:15 color:yellow bar:test from:1200 till: ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |
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Kinloch, New Zealand
Kinloch (from ) is a small town on the most northerly bay of Lake Taupō, by road northwest of Taupō on the North Island Volcanic Plateau of New Zealand. It is in the Waikato region. History Sir Keith Holyoake, then the Deputy Prime Minister and Minister of Agriculture of New Zealand, purchased the land in 1953 in partnership with his friend Theodore Nisbet Gibbs and Gibbs' son Ian. The land, which had been purchased from Ngāti Tūwharetoa iwi in 1884, was a block of 5,385 acres largely covered in scrub and fern. In 1956 Holyoake's son purchased an additional 769-acre block of land to the west of the existing block, with additional lake frontage, from the Ngāti Tūwharetoa iwi. The land was originally named Whangamatā Station, but the town was renamed Kinloch partly to distinguish it from Whangamatā in the Bay of Plenty. Kinloch was developed into a holiday destination. The first sections were sold in 1959 for between NZ£550 to NZ£1500 each. The Kinloch marina was bui ... [...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]   |