Английская Википедия:Great Western Tiers

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Шаблон:Short description Шаблон:Infobox mountain

The Great Western Tiers (Palawa kani: Kooparoona Niara) are a collection of mountain bluffs that form the northern edge of the Central Highlands plateau in Tasmania, Australia. The bluffs are contained within the Tasmanian Wilderness World Heritage Site.

The bluffs stretch northwest to southeast over Шаблон:Convert from the Шаблон:Convert Western Bluff near the town of Mole Creek to the Шаблон:Convert Millers Bluff, approximately Шаблон:Convert west of Campbell Town.[1] During the late 19th century the Tiers were known as the Great Western Range.[2]

Features

The Central Highlands, or Tasmanian central plateau, was uplifted from the lower Meander Valley, most probably in the Eocene epoch though possibly earlier, forming the Tiers' escarpment.[3] The plateau's north-east boundary, which ranges from Шаблон:ConvertШаблон:Convert, originated in extensive Tertiary faulting.[4]

This escarpment divides the high, rocky, sparsely inhabited central plateau from the fertile lower land of the Meander Valley and the northern midlands. The edge of the tiers have prominent cliffs and columns of Jurassic dolerite. The highest peak in the tiers is the Шаблон:Convert Ironstone Mountain.[5] Unlike most of the bluffs this mountain is not visible from the Meander Valley, but is south of the escarpment.[1] The escarpment has a distinct concave profile. Cliffs and scree slopes are common features.[6] The dolerite is so prominent as the older rocks that overlay them are softer and have been eroded away. In places dolerite columns have collapsed into scree slopes.[7]

The face of the tiers has been eroded and retreated approximately Шаблон:Convert since their formation, leaving the mountain Quamby Bluff as a solitary outlier. The central plateau's landform has been changed by glaciation. Valleys under the tiers are filled with talus, mostly bounders with a 25% mix of soil formed from boulder weathering.[8]

Peaks

The peaks and bluffs of the Great Western Tiers include:

Gallery

Файл:GreatWesternTiersFromChudleigh.jpg
Panorama from Chudleigh towards the Great Western Tiers

See also

Шаблон:Stack

References

Шаблон:Reflist

Bibliography

Шаблон:Tasmanian mountains Шаблон:CentralHighlandsTasmania

  1. 1,0 1,1 1,2 Lloyd, p.1
  2. Whitworth, p.91
  3. Fish and Yaxley, p.253
  4. Fish and Yaxley, p.293
  5. 5,0 5,1 Ошибка цитирования Неверный тег <ref>; для сносок pb не указан текст
  6. Fish and Yaxley, p.294
  7. Lloyd, p.5
  8. Fish and Yaxley, p.12
  9. Whitworth, p.22
  10. Whitworth, p.61
  11. Whitworth, p.135
  12. Шаблон:Cite peakbagger
  13. Forestry Commission of Tasmania, p.9