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From Wikipedia, the free encyclopedia

Uluru (Uluru)
Ayers Rock
Inselberg Monolith
Helicopter view of Uluru
Country	Australia
State	Northern Territory
Elevation	863 m (2,831 ft)
Prominence	348 m (1,142 ft)
Coordinates	25°20′42″S 131°02′10″E / 25.345°S 131.03611°E / -25.345; 131.03611
Geology	arkose
Orogeny	Petermann
UNESCO World Heritage Site
Name	Uluṟu - Kata Tjuṯa National Park
Year	1987 (#11)
Number	447
Criteria	v,vi,vii,ix
Location in Australia
Wikimedia Commons: Uluru
Website: www.environment.gov.au/...

Uluru, also referred to as Ayers Rock, is a large sandstone rock formation in the southern part of the Northern Territory, central Australia. It lies 335 km (208 mi) south west of the nearest large town, Alice Springs; 450 km (280 mi) by road. Kata Tjuta and Uluru are the two major features of the Uluru - Kata Tjuta National Park. Uluru is sacred to the Pitjantjatjara and Yankunytjatjara, the Aboriginal people of the area. It has many springs, waterholes, rock caves and ancient paintings. Uluru is listed as a World Heritage Site.

Contents 1 Name 2 Description 3 Geology 3.1 Composition 3.2 Age and origin 4 Fauna and flora 5 Climate and seasons 6 Myths, legends and Aboriginal traditions 7 History 8 Tourism 8.1 Climbing 8.2 Photography 9 References 10 See also 11 External links

Name

The local Pitjantjatjara people call the landmark Uluṟu (IPA: [uluɻu]). This word has no particular meaning in their language, also known as Pitjantjatjara, but it is also used as a local family name by the senior Traditional Owners of Uluru.^[1]

On 19 July 1873, the surveyor William Gosse visited Uluṟu and named it Ayers Rock in honour of the then-Chief Secretary of South Australia, Sir Henry Ayers.^[2] Since then, both names have been used, although Ayers Rock was the most common name used by outsiders until recently.

In 1993, a dual naming policy was adopted that allowed official names that consist of both the traditional Aboriginal name and the English name. On 15 December 1993, it was renamed "Ayers Rock/Uluru" and became the first officially dual-named feature in the Northern Territory. The order of the dual names was officially reversed to "Uluru/Ayers Rock" on 6 November 2002 following a request from the Regional Tourism Association in Alice Springs.^[3]

Description

Uluru is one of Australia's most recognisable natural icons. The world-renowned sandstone formation stands 348 m (1,142 ft) high (863 m/2,831 ft above sea level) with most of its bulk below the ground, and measures 9.4 km (5.8 mi) in circumference. Both Uluru and Kata Tjuta have great cultural significance for the Aṉangu Traditional landowners, who lead walking tours to inform visitors about the local flora and fauna, bush foods and the Aboriginal dreamtime stories of the area.

Uluru is notable for appearing to change colour as the different light strikes it at different times of the day and year, with sunset a particularly remarkable sight when it briefly glows red. Although rainfall is uncommon in this semiarid area, during wet periods the rock acquires a silvery-grey colour, with streaks of black algae forming on the areas that serve as channels for water flow.

Kata Tjuta, also called Mount Olga or The Olgas, is another rock formation about 25 km (16 mi) from Uluru. Special viewing areas with road access and parking have been constructed to give tourists the best views of both sites at dawn and dusk.

Geology

Uluru is an inselberg, literally "island mountain", an isolated remnant left after the slow erosion of an original mountain range.^[4] Uluru is also often referred to as a monolith, although this is a somewhat ambiguous term because of its multiple meanings, and thus a word generally avoided by geologists. The remarkable feature of Uluru is its homogeneity and lack of jointing and parting at bedding surfaces, leading to the lack of development of scree slopes and soil. These characteristics led to its survival, while the surrounding rocks were eroded.^[5] For the purpose of mapping and describing the geological history of the area, geologists refer to the rock strata making up Uluru as the Mutitjulu Arkose, and it is one of many sedimentary formations filling the Amadeus Basin.^[4]

Composition

Uluru is dominantly composed of coarse-grained arkose, a type of sandstone characterized by an abundance of feldspar, and some conglomerate.^[4][6] Average composition is 50% feldspar, 25–35% quartz and up to 25% rock fragments; most feldspar is K-feldspar with only minor plagioclase as subrounded grains and highly altered inclusions within K-feldspar.^[4] The grains are typically 2–4 millimetres (0.079–0.16 in) in diameter, and are angular to subangular; the finer sandstone is well sorted, with sorting decreasing with increasing grain size.^[4] The rock fragments include subrounded basalt, invariably replaced to various degrees by chlorite and epidote.^[4] The minerals present suggest derivation from a predominantly granite source, similar to the Musgrave Block exposed to the south.^[5] When relatively fresh, the rock has a grey colour, but weathering of iron-bearing minerals by the process of oxidation gives the outer surface layer of rock a red-brown rusty colour.^[4] Features related to deposition of the sediment include cross-bedding and ripples, analysis of which indicated deposition from broad shallow high energy fluvial channels and sheet flooding, typical of alluvial fans.^[4][5]

Age and origin

The Mutitjulu Arkose is believed to be of about the same age as the conglomerate at Kata Tjuta, and to have a similar origin despite the rock type being different, but it is younger than the rocks exposed to the east at Mount Conner,^[4] and unrelated to them. The strata at Uluru are nearly vertical, dipping to the south west at 85°, and have an exposed thickness of at least 2,400 m (7,900 ft). The strata dip below the surrounding plain and no doubt extend well beyond Uluru in the subsurface, but the extent is not known. The rock was originally sand, deposited as part of an extensive alluvial fan that extended out from the ancestors of the Musgrave, Mann and Petermann Ranges to the south and west, but separate from a nearby fan that deposited the sand, pebbles and cobbles that now make up Kata Tjuta.^[4][5] The similar mineral composition of the Mutitjulu Arkose and the granite ranges to the south is now explained. The ancestors of the ranges to the south were once much larger than the eroded remnants we see today. They were thrust up during a mountain building episode referred to as the Petermann Orogeny that took place in late Neoproterozoic to early Cambrian times (550-530 Ma), and thus the Mutitjulu Arkose is believed to have been deposited at about the same time. The arkose sandstone which makes up the formation is composed of grains that show little sorting based on grain size, exhibit very little rounding and the feldspars in the rock are relatively fresh in appearance. This lack of sorting and grain rounding is typical of arkosic sandstones and is indicative of relatively rapid erosion from the granites of the growing mountains to the south. The layers of sand were nearly horizontal when deposited, but were later tilted to their near vertical position during a later episode of mountain building, possibly the Alice Springs Orogeny of Palaeozoic age (400-300 Ma).^[4]

Fauna and flora

Historically, 46 species of native mammals are known to have been living in the Uluru region; according to recent surveys there are currently 21. Aṉangu acknowledge that a decrease in the number has implications for the condition and health of the landscape. Moves are supported for the reintroduction of locally extinct animals such as Malleefowl, Common Brushtail Possum, Rufous Hare-wallaby or Mala, Bilby, Burrowing Bettong and the Black-flanked Rock-wallaby.^[7]

The Mulgara, the only mammal listed as vulnerable, is mostly restricted to the transitional sand plain area, a narrow band of country that stretches from the vicinity of Uluru to the Northern boundary of the park and into Ayers Rock Resort. This area also contains the marsupial mole, Woma Python and Great Desert Skink.

The bat population of the park comprises at least seven species that depend on day roosting sites within caves and crevices of Uluru and Kata Tjuta. Most of the bats forage for aerial prey within 100 m (330 ft) or so from the rock face. The park has a very rich reptile fauna of high conservation significance with 73 species having been reliably recorded. Four species of frog are abundant at the base of Uluru and Kata Tjuta following summer rains. The Great Desert Skink is listed as vulnerable.

Aṉangu continue to hunt and gather animal species in remote areas of the park and on angu land elsewhere. Hunting is largely confined to the Red Kangaroo, Bush Turkey, Emu and lizards such as the Sand Goanna and Perentie.

Of the 27 mammal species found in the park, six are introduced: the House Mouse, camel, fox, cat, dog and rabbit. These species are distributed throughout the park but their densities are greatest in the rich water run-off areas of Uluru and Kata Tjuta.

Uluru - Kata Tjuta National Park flora represents a large portion of plants found in Central Australia. A number of these species are considered rare and restricted in the park or the immediate region. There are many rare and endemic plants at Uluru and Kata Tjuta.

The growth and reproduction of plant communities rely on irregular rainfall. Some plants are able to survive fire and some are dependent on it to reproduce. Plants are an important part of Tjukurpa, and there are ceremonies for each of the major plant foods. Many plants are associated with ancestral beings.

Flora in Uluru - Kata Tjuta National Park can be broken into the following categories:

• Punu – trees
• Puti – shrubs
• Tjulpun-tjulpunpa – flowers
• Ukiri - grasses

Trees such as the Mulga and Centralian Bloodwood are used to make tools such as spearheads, boomerangs and bowls. The red sap of the bloodwood is used as a disinfectant and an inhalant for coughs and colds.

There are several rare and endangered species in the park. Most of them, like Adder's Tongue ferns, are restricted to the moist areas at the base of the formation, which are areas of high visitor use and subject to erosion.

Since the first Europeans arrived, 34 exotic plant species have been recorded in the park, representing about 6.4% of the total park flora. Some, such as perennial buffel grass (Cenchrus ciliaris), were introduced to rehabilitate areas damaged by erosion. It is the most threatening weed in the park and has spread to invade water- and nutrient-rich drainage lines. A few others, such as burrgrass, were brought in accidentally, carried on cars and people.

Climate and seasons

The park receives an average rainfall of 307.7 mm (12.1 in) per year, and average temperatures are 37.8 °C (100.0 °F) in the summer and 4.7 °C (40.5 °F) in the winter. Temperature extremes in the park have been recorded at 45 °C (113 °F) during the summer and −5 °C (23 °F) during winter nights. UV levels are extreme most days, averaging between 11 and 15.^[8]

Local Aboriginal people recognise five seasons:

1. Piriyakutu (August/September) - Animals breed and food plants flower
2. Mai Wiyaringkupai (November/December) - The hot season when food becomes scarce
3. Itjanu (January/February/March) - Sporadic storms can roll in suddenly
4. Wanitjunkupai (April/May) - Cooler weather
5. Wari (June/July) - Cold season bringing morning frosts

Myths, legends and Aboriginal traditions

According to the Anangu traditional landowners of Uluru:^[9]

"The world was once a featureless place. None of the places we know existed until creator beings, in the forms of people, plants and animals, traveled widely across the land. Then, in a process of creation and destruction, they formed the landscape as we know it today. Anangu land is still inhabited by the spirits of dozens of these ancestral creator beings which are referred to as Tjukuritja or Waparitja."

There are a number of differing accounts given, by outsiders, of Aboriginal ancestral stories for the origins of Uluru and its many cracks and fissures. One such account, taken from Robert Layton's (1989) ULURU: An Aboriginal history of Ayers Rock,^[10] reads as follows:

"Uluru (Ayers Rock) was built up during the creation period by two boys who played in the mud after rain. When they had finished their game they travelled south to Wiputa ..Fighting together, the two boys made their way to the table topped Mount Conner, on top of which their bodies are preserved as boulders" (Page 5)

Two other accounts are given in Norbert Brockman's (1997) Encyclopedia of Sacred Places.^[11] The first tells of serpent beings who waged many wars around Uluru, scarring the rock. The second tells of two tribes of ancestral spirits who were invited to a feast, but were distracted by the beautiful Sleepy Lizard Women and did not show up. In response, the angry hosts sang evil into a mud sculpture that came to life as the dingo. There followed a great battle, which ended in the deaths of the leaders of both tribes. The earth itself rose up in grief at the bloodshed, becoming Uluru.

The Commonwealth Department of Environment's webpage advises:^[9]

"Many .. Tjukurpa such as Kalaya (Emu), Liru (poisonous snake), Lungkata (blue tongue lizard), Luunpa (kingfisher) and Tjintir-tjintirpa (willie wagtail) travel through Uluru-Kata Tjuta National Park. Other Tjukurpa affect only one specific area.

"Kuniya, the woma python, lived in the rocks at Uluru where she fought the Liru, the poisonous snake."

It is sometimes reported that those who take rocks from the formation will be cursed and suffer misfortune. There have been many instances where people who removed such rocks attempted to mail them back to various agencies in an attempt to remove the perceived curse.^[12][13]

History

Archaeological findings to the east and west indicate that humans settled in the area more than 10,000 years ago.^[10] Europeans arrived in the Australian Western Desert in the 1870s. Uluru and Kata Tjuta were first mapped by Europeans in 1872 during the expeditionary period made possible by the construction of the Australian Overland Telegraph Line. In separate expeditions, Ernest Giles and William Gosse were the first European explorers to this area.

While exploring the area in 1872, Giles sighted Kata Tjuta from a location near Kings Canyon and called it Mount Olga, while the following year Gosse observed Uluru and named it Ayers Rock. Further explorations followed with the aim of establishing the possibilities of the area for pastoralism. In the late 1800s, pastoralists attempted to establish themselves in areas adjoining the South western/Petermann Reserve and interaction between Aṉangu and white people became more frequent and more violent. Due to the effects of grazing and drought, bush food stores became depleted. Competition for these resources created conflict between the two groups, resulting in more frequent police patrols. Later, during the depression in the 1930s, Aṉangu became involved in dingo scalping with 'doggers' who introduced Aṉangu to European foods and ways.

Between 1918 and 1921, large adjoining areas of South Australia, Western Australia and Northern Territory were declared as Aboriginal reserves, sanctuaries for nomadic people who had virtually no contact with European settlers. In 1920, part of Uluru - Kata Tjuta National Park was declared an Aboriginal Reserve (commonly known as the South-Western or Petermann Reserve) by the Australian government under the Aboriginals Ordinance.

The first tourists arrived in the Uluru area in 1936. Beginning in the 1940s, permanent European settlement of the area for reasons of the Aboriginal welfare policy and to help promote tourism of Uluru. This increased tourism prompted the formation of the first vehicular tracks in 1948 and tour bus services began early in the following decade. In 1958, the area that would become the Uluru - Kata Tjuta National Park was excised from the Petermann Reserve; it was placed under the management of the Northern Territory Reserves Board and named the Ayers Rock - Mount Olga National Park. The first ranger was Bill Harney, a well-recognised central Australian figure.^[7] By 1959, the first motel leases had been granted and Eddie Connellan had constructed an airstrip close to the northern side of Uluru.^[2]

On 5 March 1968, a three seat Bell 47 G2 helicopter piloted by Philip Latz crashed on Uluru, about 1 mile (1.6 km) east of the cairn. The wreck was lifted off on 28 March by a Sikorsky S58 helicopter.^[14][15]

On 26 October 1985, the Australian government returned ownership of Uluru to the local Pitjantjatjara Aborigines, with one of the conditions being that the Aṉangu would lease it back to the National Parks and Wildlife agency for 99 years and that it would be jointly managed. The Aboriginal community of Mutitjulu, population of approximately 300, is located near the western end of Uluru. From Uluru it is 17 km (11 mi) by road to the tourist town of Yulara, population 3,000, which is situated just outside of the national park.

Tourism

The development of tourism infrastructure adjacent to the base of Uluru that began in the 1950s soon produced adverse environmental impacts. It was decided in the early 1970s to remove all accommodation-related tourist facilities and re-establish them outside the park. In 1975, a reservation of 104 square kilometres (40 sq mi) of land beyond the park's northern boundary, 15 kilometres (9 mi) from Uluru, was approved for the development of a tourist facility and an associated airport, to be known as Yulara. The camp ground within the park was closed in 1983 and the motels closed in late 1984, coinciding with the opening of the Yulara resort. In 1992, the majority interest in the Yulara resort held by the Northern Territory Government was sold and the resort was renamed Ayers Rock Resort.

Since the park was listed as a World Heritage Site, annual visitor numbers rose to over 400,000 visitors by the year 2000. Increased tourism provides regional and national economic benefits. It also presents an ongoing challenge to balance conservation of cultural values and visitor needs.

Climbing

The local Aṉangu do not climb Uluru because of its great spiritual significance. They request that visitors not climb the rock, partly due to the path crossing a sacred traditional Dreamtime track, and also due to a sense of responsibility for the safety of visitors to their land. The Aṉangu believe they have a spiritual connection to Uluru, and feel great sadness when a person dies or is injured whilst climbing.

On 11 December 1983, the Prime Minister Bob Hawke promised to hand back the land title to the Aṉangu traditional owners and agreed to the community's 10-point plan which included forbidding the climbing of Uluru. However, the government set access to climb Uluru and a 99-year lease, instead of the previously agreed upon 50-year lease, as conditions before the title was officially given back to the Aṉangu.^[16]

Climbing Uluru is a popular attraction for visitors. A chain handhold added in 1964 and extended in 1976 makes the hour-long climb easier, but it is still a long (800 m/0.5 mi) and steep hike to the top, where it can be quite windy. An above-average level of fitness and a high tolerance to desert conditions is required. Climbing Uluru is generally closed to the public when high winds are recorded at the top. Over the years there have been at least 35 deaths relating to climbing incidents.^[8]

Photography

The Aṉangu also request that visitors do not photograph certain sections of Uluru, for reasons related to traditional Tjukurpa beliefs. These areas are the sites of gender-linked rituals, and are forbidden ground for Aṉangu of the opposite sex of those participating in the rituals in question. The photographic ban is intended to prevent Aṉangu from inadvertently violating this taboo by encountering photographs of the forbidden sites in the outside world.^[17]

References

See also

• Mount Augustus National Park
• Pitjantjatjara#Recognition of sacred sites
• Protected areas of the Northern Territory

External links

Wikimedia Commons has media related to: Uluru

• Uluṟu - Kata Tjuṯa National Park - Australian Department of the Environment and Water Resources
• Northern Territory official tourism site