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Auckland Domain
The Auckland Domain, also known as Pukekawa / Auckland Domain, is a large park in Auckland, New Zealand. It is the oldest park in the city, and at is one of the largest. Located in the central suburb of Grafton, the park land is the remains of the explosion crater and most of the surrounding tuff ring of the Pukekawa volcano. The park is home to one of Auckland's main tourist attractions, the Auckland War Memorial Museum, which sits prominently on the crater rim (tuff ring). Several sports fields occupy the floor of the crater and the rim opposite the museum hosts the cricket pavilion and Auckland City Hospital. The Domain Wintergardens, with two large glass houses, lie on the north side of the central scoria cone called Pukekaroa Hill. A sacred tōtara tree grows on top of Pukekaroa. The fernery has been constructed in an old quarry in part of Pukekaroa. The duck ponds lie in the northern sector of the explosion crater, which is breached to the north with a small overflow st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fred Graham (sculptor)
Fred Graham (born 1928) is a New Zealand artist and educator recognised as a pioneer in the contemporary Māori art movement. In 2018 was the recipient of an Icon Award from the Arts Foundation of New Zealand, limited to 20 living art-makers. Biography Graham was born in 1928 in Arapuni in South Waikato. He is affiliated with the Māori people, Māori iwi Ngāti Korokī Kahukura and Tainui. He attended Taitā, New Zealand, Taita College in Lower Hutt, and enjoyed art and photography there. He trained as a teacher at Ardmore Teachers' Training College and specialised in art in his third year. He taught art at schools and in the 1950s he worked as an arts advisor to Māori primary schools in Rotorua (New Zealand electorate), Rotorua and Te Tai Tokerau. One of his students was Nigel Brown, who went on to become well known New Zealand artist. Graham taught art at Palmerston North Teachers' Training College from 1957 until 1962. He has a studio in Waiuku, New Zealand, Waiuku and l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alluvium
Alluvium (from Latin ''alluvius'', from ''alluere'' 'to wash against') is loose clay, silt, sand, or gravel that has been deposited by running water in a stream bed, on a floodplain, in an alluvial fan or beach, or in similar settings. Alluvium is also sometimes called alluvial deposit. Alluvium is typically geologically young and is not consolidated into solid rock. Sediments deposited underwater, in seas, estuaries, lakes, or ponds, are not described as alluvium. Floodplain alluvium can be highly fertile, and supported some of the earliest human civilizations. Definitions The present consensus is that "alluvium" refers to loose sediments of all types deposited by running water in floodplains or in alluvial fans or related landforms. However, the meaning of the term has varied considerably since it was first defined in the French dictionary of Antoine Furetière, posthumously published in 1690. Drawing upon concepts from Roman law, Furetière defined ''alluvion'' (the F ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Swamp
A swamp is a forested wetland.Keddy, P.A. 2010. Wetland Ecology: Principles and Conservation (2nd edition). Cambridge University Press, Cambridge, UK. 497 p. Swamps are considered to be transition zones because both land and water play a role in creating this environment. Swamps vary in size and are located all around the world. The water of a swamp may be fresh water, brackish water, or seawater. Freshwater swamps form along large rivers or lakes where they are critically dependent upon rainwater and seasonal flooding to maintain natural water level fluctuations.Hughes, F.M.R. (ed.). 2003. The Flooded Forest: Guidance for policy makers and river managers in Europe on the restoration of floodplain forests. FLOBAR2, Department of Geography, University of Cambridge, Cambridge, UK. 96 p. Saltwater swamps are found along tropical and subtropical coastlines. Some swamps have hammock (ecology), hammocks, or dry-land protrusions, covered by aquatic vegetation, or vegetation that tolerates ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grafton Volcano
Grafton Volcano is a buried volcano in New Zealand's Auckland volcanic field that underlies much of the Auckland suburb of Grafton, New Zealand, Grafton. First recognised in 2010, it includes the Outhwaite Park scoria cone that was first mapped by Ferdinand von Hochstetter, Hochstetter (1864) and inferred by later geologists to be a late phase vent of adjacent Auckland Domain, Pukekawa Volcano. Borehole drilling and building excavations in the Grafton-Auckland Domain area during the 1990s and 2000s provided new subsurface geological information that allowed geologists to recognise the buried Grafton Volcano.Hayward, B.W., Kenny, J.A., High, R., France, S., 2011, ''Grafton Volcano.'Geocene 6 12–-17. Structure The central and western parts of this Grafton Volcano comprise a tuff ring arc surrounding a diameter explosion crater filled with a solidified lava lake (basalt) at least thick, which underlies and surrounds scoria cones that erupted from two vents within the crater (at Ou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Country Rock (geology)
In geology, country rock is the rock native to an area, in contrast to any intrusion of viscous geologic material, commonly magma, or perhaps rock salt (in salt domes) or unconsolidated sediments. Magma is typically less dense than the rock it intrudes, widening and filling existing cracks, sometimes melting the already-existing country rock. The term "country rock" is similar to, and in many cases interchangeable with, the terms basement and wall rocks. Country rock can denote the widespread lithology of a region in relation to the rock which is being discussed or observed. Geologic settings Settings in geology when the term ''country rock'' is used include: Igneous intrusions When describing a pluton or dike, the igneous rock can be described as intruding the surrounding ''country rock'', the rock into which the pluton has intruded.Newfoundland and LabradorGlossary of Geological Terms Accessed June 2018. When country rock is intruded by a dike, perpendicular to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lapilli
Lapilli is a size classification of tephra, which is material that falls out of the air during a volcanic eruption or during some meteorite impacts. ''Lapilli'' (singular: ''lapillus'') is Latin for "little stones". By definition lapilli range from in diameter. A pyroclastic particle greater than 64 mm in diameter is known as a volcanic bomb when molten, or a volcanic block when solid. Pyroclastic material with particles less than 2 mm in diameter is referred to as volcanic ash. Formation Lapilli are spheroid-, teardrop-, dumbbell- or button-shaped droplets of molten or semi-molten lava ejected from a volcanic eruption that fall to earth while still at least partially molten. These granules are not accretionary, but instead the direct result of liquid rock cooling as it travels through the air. Lapilli tuffs are a very common form of volcanic rock typical of rhyolite, andesite and dacite pyroclastic eruptions, where thick layers of lapilli can be deposited during a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcanic Ash
Volcanic ash consists of fragments of rock, mineral crystals, and volcanic glass, created during volcano, volcanic eruptions and measuring less than 2 mm (0.079 inches) in diameter. The term volcanic ash is also often loosely used to refer to all explosive eruption products (correctly referred to as ''tephra''), including particles larger than 2 mm. Volcanic ash is formed during explosive volcanic eruptions when dissolved gases in magma expand and escape violently into the atmosphere. The force of the gases shatters the magma and propels it into the atmosphere where it solidifies into fragments of volcanic rock and glass. Ash is also produced when magma comes into contact with water during phreatomagmatic eruptions, causing the water to explosively flash to steam leading to shattering of magma. Once in the air, ash is transported by wind up to thousands of kilometres away. Due to its wide dispersal, ash can have a number of impacts on society, including animal a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tuff
Tuff is a type of rock made of volcanic ash ejected from a vent during a volcanic eruption. Following ejection and deposition, the ash is lithified into a solid rock. Rock that contains greater than 75% ash is considered tuff, while rock containing 25% to 75% ash is described as tuffaceous (for example, ''tuffaceous sandstone''). Tuff composed of sandy volcanic material can be referred to as volcanic sandstone. Tuff is a relatively soft rock, so it has been used for construction since ancient times. Because it is common in Italy, the Romans used it often for construction. The Rapa Nui people used it to make most of the ''moai'' statues on Easter Island. Tuff can be classified as either igneous or sedimentary rock. It is usually studied in the context of igneous petrology, although it is sometimes described using sedimentological terms. Tuff is often erroneously called tufa in guidebooks and in television programmes. Volcanic ash The material that is expelled in a volcanic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Auckland University Press
Auckland University Press is a New Zealand publisher that produces creative and scholarly work for a general audience. Founded in 1966 and formally recognised as Auckland University Press in 1972, it is an independent publisher based within The University of Auckland, Auckland, New Zealand. The Press currently publishes around 20 new books a year in history and politics, art and architecture, literature and poetry, Māori, Pacific and Asian Studies, science, business and health. It published its 500th book in 2005 of which 22 were prize winning publications. Awards Auckland University Press won the ''Most Beautiful Books Australia & New Zealand Award'' (2013) and its authors have won a number of national prizes. Imprints 1966–1970: Published for the University of Auckland by the Oxford University Press 1970–1986: Auckland University Press/Oxford University Press 1986–: Auckland University Press 1995–1998: a small number of books carried the imprint Auckland Universit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Auckland Volcanic Field
The Auckland volcanic field is an area of monogenetic volcanoes covered by much of the metropolitan area of Auckland, New Zealand's largest city, located in the North Island. The approximately 53 volcanoes in the field have produced a diverse array of maars (explosion craters), tuff rings, scoria cones, and lava flows. With the exception of Rangitoto, no volcano has erupted more than once, but the other eruptions lasted for various periods ranging from a few weeks to several years. Rangitoto erupted several times and recently twice; in an eruption that occurred about 600 years ago, followed by a second eruption approximately 50 years later. The field is fuelled entirely by basaltic magma, unlike the explosive subduction-driven volcanism in the central North Island, such as at Mount Ruapehu and Lake Taupō.Ian E.M. Smith and Sharon R. Allen. Auckland volcanic field geology'. Volcanic Hazards Working Group, Civil Defence Scientific Advisory Committee. Retrieved 30 March 2013. Also ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Podocarpus Totara
''Podocarpus totara'' (; from the Maori-language ; the spelling "totara" is also common in English) is a species of podocarp tree endemic to New Zealand. It grows throughout the North Island and northeastern South Island in lowland, montane and lower subalpine forest at elevations of up to 600 m. Tōtara is commonly found in lowland areas where the soil is fertile and well drained. Description The tōtara is a medium to large tree, which grows slowly to around 20 to 25 m, exceptionally to 35 m; it is noted for its longevity and the great girth of its trunk. The bark peels off in papery flakes, with a purplish to golden brown hue. The sharp, dull-green, needle-like leaves are stiff and leathery, 2 cm long. This plant produces highly modified cones with two to four fused, fleshy, berry-like, juicy scales, bright red when mature. The cone contains one or two rounded seeds at the apex of the scales. The largest known living tōtara, the Pouakani Tree, near Pureora in the ce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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