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Hunter-Bowen Orogeny
The Hunter-Bowen Orogeny was a significant arc accretion event in the Permian and Triassic periods affecting approximately 2,500 km of the Australian continental margin. The Hunter-Bowen Orogeny occurred in two main phases, a Permian accretion of previously formed passive-marginal Devonian and Carboniferous sediments in the Hunter region and mid-west region of what is now New South Wales, separated by rifting, back-arc volcanism and a later Permian to Triassic event resulting in arc accretion and metamorphism during a subduction event. The Hunter-Bowen Orogeny has resulted in the New England Fold Belt, a tectonic accretion of metamorphic terranes and mid-crustal granitoid intrusions, flanked by Permian to Triassic sedimentary basins which were formed distally to the now-eroded orogenic mountain belt. While the Great Dividing Range north of Sydney is a prominent landform, this is more the result of Cenozoic volcanism and crustal uplift since the Jurassic than the result of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Permian
The Permian ( ) is a geologic period and stratigraphic system which spans 47 million years from the end of the Carboniferous Period million years ago (Mya), to the beginning of the Triassic Period 251.9 Mya. It is the last period of the Paleozoic Era; the following Triassic Period belongs to the Mesozoic Era. The concept of the Permian was introduced in 1841 by geologist Sir Roderick Murchison, who named it after the region of Perm in Russia. The Permian witnessed the diversification of the two groups of amniotes, the synapsids and the sauropsids ( reptiles). The world at the time was dominated by the supercontinent Pangaea, which had formed due to the collision of Euramerica and Gondwana during the Carboniferous. Pangaea was surrounded by the superocean Panthalassa. The Carboniferous rainforest collapse left behind vast regions of desert within the continental interior. Amniotes, which could better cope with these drier conditions, rose to dominance in place of their am ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Foredeep
A foreland basin is a structural basin that develops adjacent and parallel to a mountain belt. Foreland basins form because the immense mass created by crustal thickening associated with the evolution of a mountain belt causes the lithosphere to bend, by a process known as lithospheric flexure. The width and depth of the foreland basin is determined by the flexural rigidity of the underlying lithosphere, and the characteristics of the mountain belt. The foreland basin receives sediment that is eroded off the adjacent mountain belt, filling with thick sedimentary successions that thin away from the mountain belt. Foreland basins represent an endmember basin type, the other being rift basins. Space for sediments (accommodation space) is provided by loading and downflexure to form foreland basins, in contrast to rift basins, where accommodation space is generated by lithospheric extension. Types of foreland basin Foreland basins can be divided into two categories: * Peripher ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Early Permian
01 or '01 may refer to: * The year 2001, or any year ending with 01 * The month of January * 1 (number) Music * '01 (Richard Müller album), 01'' (Richard Müller album), 2001 * 01 (Son of Dave album), ''01'' (Son of Dave album), 2000 * 01 (Urban Zakapa album), ''01'' (Urban Zakapa album), 2011 * O1 (Hiroyuki Sawano album), ''O1'' (Hiroyuki Sawano album), 2015 * 01011001, the seventh studio album from Arjen Anthony Lucassen's Ayreon project Other uses * 01 (telephone number), United Kingdom internal dialing code for London between the late 1950s and 1990 * Lynk & Co 01, a compact SUV built since 2017 * Zero One also known as ''Machine City'', a city-state from the ''The Matrix (series), Matrix'' series * Kolmogorov's zero-one law, a law of probability theory * Pro Wrestling ZERO1-MAX, a wrestling promotion formerly known as Pro Wrestling ZERO-ONE * BAR 01, a Formula One chassis * The number of the French department Ain * The codename given to the Wing Gundam by Oz in the anime ''G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
St Lawrence, Queensland
St Lawrence is a rural town and locality in the Isaac Region, Queensland, Australia. In the the locality of St Lawrence had a population of 235 people. Geography St Lawrence is located north of Brisbane and off the Bruce Highway.The town is located south of St Lawrence Creek, which flows into a vast bay known as Broad Sound, a waterway noted for its large tidal range (up to in the summer). The North Coast railway line passes through the town, which is served by St Lawrence railway station. Newport is a neighbourhood within the locality, about south-east of the town (). History St Lawrence is located on Koinmerburra Country; the Custodians of this land are thKoinjmalPeople. British settlement in the area began circa 1860 when John Arthur Macartney established Waverley pastora station. The township of St Lawrence was originally established to maintain the Customs Office for the Port of St Lawrence. It takes its name from one of the blocks on the Waverley pastoral s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Broad Sound (Queensland)
Broad Sound is a large bay on the east coast of Australia, in the state of Queensland, northwest of the state capital, Brisbane. It is about long and across at its widest point. The Torilla Peninsula forms the eastern side of the bay; Shoalwater Bay is on the other side of the peninsula. The sound has a large tidal range of about . This is the largest variance on the eastern Australia coastline. History British explorer James Cook, in HMS ''Endeavour'', sighted the bay in May 1770, naming it for its size. The next European navigator in the area was Matthew Flinders in HMS ''Investigator'' in 1802. The town of St Lawrence was established midway between Rockhampton and Mackay on St Lawrence Creek and developed as a port for the export of cattle from the hinterland, with a large meatworks built close by in 1893. The processing and export of meat and cattle continued until 1919 when rail links were built elsewhere, making the port redundant. By 2006 the population of St L ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Triple Junction
A triple junction is the point where the boundaries of three tectonic plates meet. At the triple junction each of the three boundaries will be one of three types – a ridge (R), trench (T) or transform fault (F) – and triple junctions can be described according to the types of plate margin that meet at them (e.g. Fault-Fault-Trench, Ridge-Ridge-Ridge, or abbreviated F-F-T, R-R-R). Of the ten possible types of triple junction only a few are stable through time ('stable' in this context means that the geometrical configuration of the triple junction will not change through geologic time). The meeting of four or more plates is also theoretically possible but junctions will only exist instantaneously. History The first scientific paper detailing the triple junction concept was published in 1969 by Dan McKenzie and W. Jason Morgan. The term had traditionally been used for the intersection of three divergent boundaries or spreading ridges. These three divergent boundaries ideally ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coffs Harbour
Coffs Harbour is a city on the Mid North Coast of New South Wales, Australia, north of Sydney, and south of Brisbane. It is one of the largest urban centres on the North Coast, with a population of 78,759 as per 2021 census. The Gumbaynggirr are the original people of the Coffs Harbour region. Coffs Harbour's economy was once based on timber and agriculture. Over recent decades, tourism has become an increasingly important industry for the city. Once part of a region known as the Bananacoast, today the tourist city is part of a wider region known as the Coffs Coast. The city has a campus of Southern Cross University, and a campus of Rural Faculty of Medicine University of New South Wales, a public and a private hospital, several radio stations, and three major shopping centres. Coffs Harbour is near numerous national parks, including a marine national park. There are regular passenger flights each day to Sydney, Melbourne and Brisbane departing from Coffs Harbour Airport. Co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fraser Island
Fraser Island (Butchulla: ) is a World Heritage-listed island along the south-eastern coast in the Wide Bay–Burnett region, Queensland, Australia. The island is approximately north of the state capital, Brisbane, and is within the Fraser Coast Region local government area. The world heritage listing includes the island, its surrounding waters and parts of the nearby mainland. Fraser Island, and some satellite islands off the southern west coast and thus in the Great Sandy Strait, previously formed the County of Fraser, which was subdivided into six parishes. Among the islands were Slain Island, Tooth Island, Roundbush Island, Moonboom Island, Gardner Island, Dream Island, Stewart Island, and the Reef Islands, all part of the southernmost parish of Talboor. The island is about long and wide. It was inscribed as a World Heritage Site in 1992. The island is considered to be the largest sand island in the world at . It is also Queensland's largest island, Australia's sixth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tin Can Bay
Tin Can Bay is a coastal town and locality in the Wide Bay–Burnett region in Queensland, Australia. The locality is split between the Fraser Coast Region (the northern part of the locality) and the Gympie Region (southern part of the locality), but the town itself is within Gympie Region. In the , Tin Can Bay had a population of 2,242 people. Geography The locality of Tin Can Bay is bounded on the east by the Great Sandy Strait, which separates mainland Queensland from Fraser Island. The area is a Ramsar Convention wetland of International Importance and an Important Bird Area of Australia. The town is located on a peninsula between Snapper Creek and the Great Sandy Strait. A vehicular ferry operates at nearby Inskip Point providing access to Fraser Island. History The town was originally called Wallu, but was changed to Tin Can Bay in 1937. The origins of "Tin Can" are uncertain, but is believed to be derived from an indigenous name, possibly ''tinchin'' meaning ''mangr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blueschist Metamorphism
Blueschist (), also called glaucophane schist, is a metavolcanic rock that forms by the metamorphism of basalt and rocks with similar composition at high pressures and low temperatures (), approximately corresponding to a depth of . The blue color of the rock comes from the presence of the predominant minerals glaucophane and lawsonite. Blueschists are schists typically found within orogenic belts as terranes of lithology in faulted contact with greenschist or rarely eclogite facies rocks. Petrology Blueschist, as a rock type, is defined by the presence of the minerals glaucophane + ( lawsonite or epidote ) +/- jadeite +/- albite or chlorite +/- garnet +/- muscovite in a rock of roughly basaltic composition. Blueschist often has a lepidoblastic, nematoblastic or schistose rock microstructure defined primarily by chlorite, phengitic white mica, glaucophane, and other minerals with an elongate or platy shape. Grain size is rarely coarse, as mineral growth is retarded by the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Forearc Basin
Forearc is a plate tectonic term referring to a region between an oceanic trench, also known as a subduction zone, and the associated volcanic arc. Forearc regions are present along a convergent margins and eponymously form 'in front of' the volcanic arcs that are characteristic of convergent plate margins. A back-arc region is the companion region behind the volcanic arc. Many forearcs have an accretionary wedge which may form a topographic ridge known as an outer arc ridge that parallels the volcanic arc. Between the accretionary wedge and the volcanic arc a forearc basin, sometimes referred to as an outer arc trough, may be present and can accumulate thick deposits of sediment. Due to tectonic stresses as one tectonic plate rides over another, forearc regions are sources for great thrust earthquakes. Formation During subduction, an oceanic plate is thrust below another tectonic plate, which may be oceanic or continental. Water and other volatiles in the down-going plat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magmatic Arc
Magma () is the molten or semi-molten natural material from which all igneous rocks are formed. Magma is found beneath the surface of the Earth, and evidence of magmatism has also been discovered on other terrestrial planets and some natural satellites. Besides molten rock, magma may also contain suspended crystals and gas bubbles. Magma is produced by melting of the mantle or the crust in various tectonic settings, which on Earth include subduction zones, continental rift zones, mid-ocean ridges and hotspots. Mantle and crustal melts migrate upwards through the crust where they are thought to be stored in magma chambers or trans-crustal crystal-rich mush zones. During magma's storage in the crust, its composition may be modified by fractional crystallization, contamination with crustal melts, magma mixing, and degassing. Following its ascent through the crust, magma may feed a volcano and be extruded as lava, or it may solidify underground to form an intrusion, such as a d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
