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Sumatra Trench
The Sumatra Trench is a part of the Sunda Trench or Java Trench. The Sunda subduction zone (called also: the Sumatra-Andaman subduction zone) is located in the east part of Indian Ocean, and is about from the southwest coast of Sumatra and Java islands. It extends over long, starting from Myanmar in the northwest and ending at Sumba Island in the southeast. Geological settings The Java trench was generated by the oblique subduction of the Indo-Australian Plate into the Sunda plate at a rate of 61mm/y (in the south) and 51mm/y (in the north). The oceanic crust being subducted via this accretionary margin has variable ages (40 to 100 Ma) and structure along the trench. There is also research showing that arc parallel dextral strike-slip fault systems (i.e. the Great Sumatra fault) developed on the landward side of the Sunda forearc to absorb part of the dextral motions associated with the oblique plate convergence. After the disastrous 2004 Sumatran tsunami, more and more researche ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sunda Trench
The Sunda Trench, earlier known as and sometimes still indicated as the Java Trench, is an oceanic trench located in the Indian Ocean near Sumatra, formed where the Australian- Capricorn plates subduct under a part of the Eurasian Plate. It is long with a maximum depth of 7,290 metres (23,920 feet). Its maximum depth is the deepest point in the Indian Ocean. The trench stretches from the Lesser Sunda Islands past Java, around the southern coast of Sumatra on to the Andaman Islands, and forms the boundary between Indo-Australian Plate and Eurasian plate (more specifically, Sunda Plate). The trench is considered to be part of the Pacific Ring of Fire as well as one of a ring of oceanic trenches around the northern edges of the Australian Plate. In 2005, scientists found evidence that the 2004 earthquake activity in the area of the Java Trench could lead to further catastrophic shifting within a relatively short period of time, perhaps less than a decade. This threat has resulted i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Graben
In geology, a graben () is a depressed block of the crust of a planet or moon, bordered by parallel normal faults. Etymology ''Graben'' is a loan word from German, meaning 'ditch' or 'trench'. The word was first used in the geologic context by Eduard Suess in 1883. The plural form is either ''graben'' or ''grabens''. Formation A graben is a valley with a distinct escarpment on each side caused by the displacement of a block of land downward. Graben often occur side by side with horsts. Horst and graben structures indicate tensional forces and crustal stretching. Graben are produced from parallel normal faults, where the displacement of the hanging wall is downward, while that of the footwall is upward. The faults typically dip toward the center of the graben from both sides. Horsts are parallel blocks that remain between graben; the bounding faults of a horst typically dip away from the center line of the horst. Single or multiple graben can produce a rift valley. Half-g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Makran Trench
The Makran Trench is the physiographic expression of a subduction zone along the northeastern margin of the Gulf of Oman adjacent to the southwestern coast of Balochistan of Pakistan and the southeastern coast of Iran. In this region the oceanic crust of the Arabian Plate is being subducted beneath the continental crust of the Eurasian Plate. Tectonics In the Makran region, the Arabian Plate subducts beneath the Eurasian Plate at ~2-4cm/yr. This subduction is associated with an accretionary wedge of sediments which has developed since the Cenozoic. To the west, the Makran Trench is connected by the Minab Fault system to the Zagros fold and thrust belt. To the east, the Makran Trench is bounded by the transpressional strike-slip Ornach-Nal and Chaman Faults, which connect to the Himalayan orogeny. The Makran Subduction Zone is often split into two segments: the east and west. The Sonne fault divides the two. Though largely much quieter than many other subduction zones, s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nicobar Fan
Nicobar can refer to: * Nicobar Islands, a group of islands within the Indian union territory of Andaman and Nicobar Islands **Car Nicobar **Great Nicobar Island ** Little Nicobar * Nicobar district, a district of the Indian union territory Animals *Nicobar shrew * Nicobar treeshrew *Nicobar long-tailed macaque * Nicobar flying fox * Nicobar pigeon * Nicobar megapode *Nicobar sparrowhawk *Nicobar parakeet *Nicobar bulbul * Central Nicobar serpent eagle *South Nicobar serpent eagle The Great Nicobar serpent eagle (''Spilornis klossi''), also known as the South Nicobar serpent eagle, is a species of bird of prey in the family Accipitridae. It is probably the smallest known eagle, with a weight of about , a wingspan of and a ... * Nicobar scops-owl * Nicobar crow See also * Nicobarese (other) {{disambig, geo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Enggano Island
Enggano Island is about 100 km (60 mi) southwest of Sumatra, Indonesia. It is one of the 92 officially listed outlying islands of Indonesia, though it can also be considered a barrier island of Sumatra. Enggano is about long from east to west and about wide from north to south. Its area is including four small offshore islands - Merbau, Dua, banggai and Satu. The average elevation is about , and the highest point is . Politically, it forms a district (''kecamatan'') of the North Bengkulu Regency of the Indonesian province of Bengkulu. The three largest villages on the island are Barhau, Kabuwe and Kayaapu. According to the Indonesian ''Kantor Statistik'' for Bengkulu, the island had 1420 inhabitants in 1989. This number rises, according to the ''Pukesmas'', to 1635 by 1994, with 64% of the population claiming descent from the Engganese people. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bengal Fan
The Bengal Fan, also known as the Ganges Fan, is the largest submarine fan on Earth. Geography It is located in Eurasia, being about long, wide with a maximum thickness of . The fan resulted from the uplift and erosion of the Himalayas and the Tibetan Plateau produced by the collision between the Indian Plate and the Eurasian Plate. Most of the sediment is supplied by the Ganges and Brahmaputra rivers which supply the Lower Meghna delta in Bangladesh and the Hoogly delta in West Bengal (India). Several other large rivers in Bangladesh and India provide smaller contributions. Turbidity currents have transported the sediment through a series of submarine canyons, some of which are more than 1,500 miles (2,414 km) in length, to be deposited in the Bay of Bengal up to 30 degrees latitude from where it began. To date, the oldest sediments recovered from the Bengal fan are from Early Miocene age. Their mineralogical and geochemical characteristics allow to identify their Himala ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Simeulue Island
Simeulue is an island of Indonesia, off the west coast of Sumatra. It covers an area of 1754 square kilometres (677 square miles), including minor offshore islands. It had a population of 80,674 at the 2010 census and 92,865 at the 2020 census. The official estimate as at mid 2021 was 93,762. Its capital is Sinabang. Simeulue was once a part of West Aceh Regency but was split off in 1999 and became a separate Simeulue Regency. Demographics From the ethnic point of view the inhabitants of Simeulue are similar to the people of neighboring Nias Island. Two languages and a number of dialects are spoken on the island: Simeulue and Sigulai, which are different from the languages spoken in the north of Sumatra. The majority of the island's population is Muslim. History Simeulue was historically known to European mariners as "Hog Island"JH Moor '' Notices of the Indian Archipelago'' (1837) p103; retrieved 27 January 2019 and served as a landfall for ships seeking ports on the wes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Structure Of Accretionary Prism And Land Or Seaward Thrust Folds
A structure is an arrangement and organization of interrelated elements in a material object or system, or the object or system so organized. Material structures include man-made objects such as buildings and machines and natural objects such as biological organisms, minerals and chemicals. Abstract structures include data structures in computer science and musical form. Types of structure include a hierarchy (a cascade of one-to-many relationships), a network featuring many-to-many links, or a lattice featuring connections between components that are neighbors in space. Load-bearing Buildings, aircraft, skeletons, anthills, beaver dams, bridges and salt domes are all examples of load-bearing structures. The results of construction are divided into buildings and non-building structures, and make up the infrastructure of a human society. Built structures are broadly divided by their varying design approaches and standards, into categories including building structures, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eurasian Plate
The Eurasian Plate is a tectonic plate that includes most of the continent of Eurasia (a landmass consisting of the traditional continents of Europe and Asia), with the notable exceptions of the Indian subcontinent, the Arabian subcontinent and the area east of the Chersky Range in eastern Siberia. It also includes oceanic crust extending westward to the Mid-Atlantic Ridge and northward to the Gakkel Ridge. The eastern edge is a boundary with the North American Plate to the north and a boundary with the Philippine Sea Plate to the south and possibly with the Okhotsk Plate and the Amurian Plate. The southern edge is a boundary with the African Plate to the west, the Arabian Plate in the middle and the Indo-Australian Plate to the east. The western edge is a divergent boundary with the North American Plate forming the northernmost part of the Mid-Atlantic Ridge, which is straddled by Iceland. All volcanic eruptions in Iceland, such as the 1973 eruption of Eldfell, the 1783 eruptio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Myanmar
Myanmar, ; UK pronunciations: US pronunciations incl. . Note: Wikipedia's IPA conventions require indicating /r/ even in British English although only some British English speakers pronounce r at the end of syllables. As John C. Wells, John Wells explains, the English spellings of both Myanmar and Burma assume a non-rhotic variety of English, in which the letter r before a consonant or finally serves merely to indicate a long vowel: [ˈmjænmɑː, ˈbɜːmə]. So the pronunciation of the last syllable of Myanmar as [mɑːr] or of Burma as [bɜːrmə] by some speakers in the UK and most speakers in North America is in fact a spelling pronunciation based on a misunderstanding of non-rhotic spelling conventions. The final ''r'' in ''Myanmar'' was not intended for pronunciation and is there to ensure that the final a is pronounced with the broad a, broad ''ah'' () in "father". If the Burmese name my, မြန်မာ, label=none were spelled "Myanma" in English, this would b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indo-Australian
all of this entry re immigration is a complete fabrication Indian Australians or Indo-Australians are Australians of Indian ancestry. This includes both those who are Australian by birth, and those born in India or elsewhere in the Indian diaspora. Indian Australians are one of the largest groups within the Indian diaspora, with 783,958 persons declaring Indian ancestry at the 2021 census, representing 3.1% of the Australian population.https://www.abs.gov.au/census/find-census-data/community-profiles/2021/AUS/download/GCP_AUS.xlsx In 2019, the Australian Bureau of Statistics estimated that 721,050 Australian residents were born in India. Indians are the youngest average age (34 years) and the fastest growing community both in terms of absolute numbers and percentages in Australia. In 2017-18 India was the largest source of new permanent annual migrants to Australia since 2016, and overall third largest source nation of cumulative total migrant population behind England an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
