Mitchell Ranges

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Mitchell Ranges are a mountain range in Arnhem Land located approximately 510 kilometres (317 mi) east of Darwin in the Northern Territory, of Australia.

Mountain range A geographic area containing several geologically related mountains

A mountain range or hill range is a series of mountains or hills ranged in a line and connected by high ground. A mountain system or mountain belt is a group of mountain ranges with similarity in form, structure, and alignment that have arisen from the same cause, usually an orogeny. Mountain ranges are formed by a variety of geological processes, but most of the significant ones on Earth are the result of plate tectonics. Mountain ranges are also found on many planetary mass objects in the Solar System and are likely a feature of most terrestrial planets.

Arnhem Land Region in the Northern Territory, Australia

Arnhem Land is one of the five regions of the Northern Territory of Australia. It is located in the north-eastern corner of the territory and is around 500 km (310 mi) from the territory capital Darwin. The region has an area of 97,000 km2 (37,000 sq mi), which also covers the area of Kakadu National Park, and a population of 16,230. In 1623, Dutch East India Company captain William van Colster sailed into the Gulf of Carpentaria and Cape Arnhem is named after his ship, the Arnhem, which itself was named after the city of Arnhem in the Netherlands.

Darwin, Northern Territory City in the Northern Territory, Australia

Darwin is the capital city of the Northern Territory of Australia, situated on the Timor Sea. It is the largest city in the sparsely populated Northern Territory, with a population of 145,916. It is the smallest, wettest and most northerly of the Australian capital cities, and acts as the Top End's regional centre.

The Range is approximately 115 kilometres (71 mi) long running from north to south with a width of approximately 15 kilometres (9 mi). [1] Several peaks are found within the range including; Mount Parson, Mount Fleming, Mount Ramsay and Mount Fawcett. The Parson Range is in the sound of the range.

The rocks that make up the range are Proterozoic sedimentary and include pebbly sandstones, [1] moderately folded quartz sandstone, feldspathic sandstone and arkose. [2]

Sandstone A clastic sedimentary rock composed mostly of sand-sized particles

Sandstone is a clastic sedimentary rock composed mainly of sand-sized mineral particles or rock fragments.

Quartz mineral composed of silicon and oxygen atoms in a continuous framework of SiO₄ silicon–oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical formula of SiO₂

Quartz is a mineral composed of silicon and oxygen atoms in a continuous framework of SiO4 silicon–oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical formula of SiO2. Quartz is the second most abundant mineral in Earth's continental crust, behind feldspar.

Arkose A type of sandstone containing at least 25% feldspar

Arkose is a detrital sedimentary rock, specifically a type of sandstone containing at least 25% feldspar. Arkosic sand is sand that is similarly rich in feldspar, and thus the potential precursor of arkose.

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The protected areas of the Northern Territory consists of protected areas managed by the governments of the Northern Territory and Australia and private organisations with a reported total area of 335,527 square kilometres (129,548 sq mi) being 24.8% of the total area of the Northern Territory of Australia.

Purnululu National Park Protected area in Western Australia

The Purnululu National Park is a World Heritage Site in the East Kimberley region of Western Australia. The 239,723-hectare (592,370-acre) national park is located approximately 300 kilometres (190 mi) south of Kununurra, with Halls Creek located to the south. Declared a World Heritage Site in 2003, the park was inscribed as follows:

...[is a] remote area managed as wilderness. It includes the Bungle Bungle Range, a spectacularly incised landscape of sculptured rocks which contains superlative examples of beehive-shaped karst sandstone rising 250 metres above the surrounding semi-arid savannah grasslands. Unique depositional processes and weathering have given these towers their spectacular black and orange banded appearance, formed by biological processes of cyanobacteria which serve to stabilise and protect the ancient sandstone formations. These outstanding examples of cone karst that have eroded over a period of 20 million years are of great beauty and exceptional geological interest.

Top End Region in the Northern Territory, Australia

The Top End of Australia's Northern Territory is a geographical region encompassing the northernmost section of the Northern Territory, which aside from the Cape York Peninsula is the northernmost part of the Australian continent. It covers a rather vaguely defined area of perhaps 245,000 km2 (94,595 sq mi) behind the northern coast from the Northern Territory capital of Darwin across to Arnhem Land with the Indian Ocean on the west, the Arafura Sea to the north, and the Gulf of Carpentaria to the east, and with the almost waterless semi-arid interior of Australia to the south, beyond the huge Kakadu National Park.

Goyder crater

Goyder is an impact structure, the eroded remnant of a former impact crater. It is situated in Arnhem Land in the Northern Territory, Australia, and was named after the nearby Goyder River. The impact occurred into Mesoproterozoic sedimentary rocks of the McArthur Basin. The deformed area is exposed at the surface and marked by a 3 km diameter ring of fractured and faulted sandstone, which is interpreted as the eroded relic of a central uplift ; the original crater rim, long since removed by erosion, being estimated at approximately 9–12 km diameter. Evidence for an impact origin includes the presence of shatter cones and shocked quartz in outcrops of deformed sandstone at the center of the site.

Sydney Basin Region in New South Wales, Australia

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Twin Falls (Northern Territory) waterfall in Northern Territory, Australia

The Twin Falls is a cascade waterfall on the South Alligator River that descends over the Arnhem Land escarpment within the UNESCO World Heritage–listed Kakadu National Park in the Northern Territory of Australia. The Twin Falls area is registered on the Australian National Heritage List.

Wongalara Sanctuary

Wongalara Sanctuary is a nature reserve in the Top End of the Northern Territory of Australia.

Jim Jim Falls waterfall

The Jim Jim Falls is a plunge waterfall on the Jim Jim Creek that descends over the Arnhem Land escarpment within the UNESCO World Heritage–listed Kakadu National Park in the Northern Territory of Australia. The Jim Jim Falls area is registered on the Australian National Heritage List.

The Arnhem Land rock rat also known as the Arnhem rock-rat and by the Indigenous Australian name of kodjperr is a species of rodent in the family Muridae. It is found only in the Top End Region of the Northern Territory in Australia.

Geography of South Australia

The geography of South Australia incorporates the south central part of the continent of Australia. It is one of the six states of Australia. South Australia is bordered on the west by Western Australia, to the north by the Northern Territory, Queensland to the northeast, and both New South Wales and Victoria to the east. South Australia's south coast is flanked by the Great Australian Bight and the Indian Ocean, although it is referred to locally as the Southern Ocean.

Lubczyna, West Pomeranian Voivodeship Village in West Pomeranian, Poland

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Bodo, Alberta

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Arnhem Plateau Region in the Northern Territory, Australia

The Arnhem Plateau, an interim Australian bioregion, is located in the Northern Territory, comprising an area of 2,306,023 hectares of the raised and heavily dissected sandstone plateau that characterises central Arnhem Land in the Top End of the Northern Territory.

Mount Unapproachable Mountain in the Northern Territory, Australia

Mount Unapproachable is an isolated mountain on the northern side of Lake Neale, in the southwest of Australia's Northern Territory. It is about 505 metres (1,657 ft) above sea level. The area is remote: the nearest towns are Kaltukatjara some 116 kilometres (72 mi) away, Kintore some 135 kilometres (84 mi) away and Yulara 138 kilometres (86 mi) away. The mountain is mostly made of sandstone.

Hann Range mountains in Australia

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Buckingham River river in Australia

Buckingham River is a river in the Northern Territory of Australia.

Goromuru River river in Australia

The Goromuru River is a river, located in the Northern Territory in Australia.

Goomadeer River river in Australia

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Walker River (Northern Territory) river in Australia

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References

  1. 1 2 Andrew A. Krassay (1994). "The Cretaceous Geology of northeastern Arnhem Land, Northern Territory" (PDF). Australian Geological Survey Organisation. Retrieved 17 May 2015.
  2. "Report on activities during 1962 metalliferrous section records" (PDF). Commonwealth of Australia. 1962.

Coordinates: 13°04′45″S135°30′13″E / 13.07917°S 135.50361°E / -13.07917; 135.50361

Geographic coordinate system Coordinate system

A geographic coordinate system is a coordinate system that enables every location on Earth to be specified by a set of numbers, letters or symbols. The coordinates are often chosen such that one of the numbers represents a vertical position and two or three of the numbers represent a horizontal position; alternatively, a geographic position may be expressed in a combined three-dimensional Cartesian vector. A common choice of coordinates is latitude, longitude and elevation. To specify a location on a plane requires a map projection.