Tasmania is an island state, part of the Commonwealth of Australia, located 240 kilometres to the south of the Australian continent, separated by Bass Strait.
Etymology
The state is named after Dutch explorer Abel Tasman, who made the first reported European sighting of the island on 24 November 1642. Tasman named the island "Anthony van Diemen's Land" after his sponsor Anthony van Diemen, the Governor of the Dutch East Indies. The name was later shortened to Van Diemen's Land by the British. It was officially renamed Tasmania in honour of its first European discoverer on 1 January 1856.
Tasmania was sometimes referred to as "Dervon", as mentioned in The Jerilderie Letter written by the notorious Australian bushranger Ned Kelly in 1879. The colloquial expression for the state is "Tassie" (pronounced "Tazzie"). Tasmania is also colloquially shortened to "Tas" (pronounced "Taz"), especially when used in business names and website addresses. TAS is also the Australia Post abbreviation for the state.
History
The island is believed to have been joined to the mainland of Australia until the end of the last glacial period approximately 10,000 years ago. Much of the island is composed of Jurassic dolerite intrusions (upwellings of magma) through other rock types, sometimes forming large columnar joints. Tasmania has the world's largest areas of dolerite, with many distinctive mountains and cliffs formed from this rock type.
The central plateau and the southeast portions of the island are mostly dolerite. Mount Wellington above Hobart is a good example, showing distinct columns known as the Organ Pipes. In the southern midlands as far south as Hobart, the dolerite is underlaid by sandstone and similar sedimentary stones. In the southwest, Precambrian quartzites was formed from very ancient sea sediments and form strikingly sharp ridges and ranges, such as Federation Peak or Frenchmans Cap.
In the northeast and east, continental granites can be seen, such as at Freycinet, similar to coastal granites on mainland Australia. In the northwest and west, mineral-rich volcanic rock can be seen at Mount Read near Rosebery, or at Mount Lyell near Queenstown. Also present in the south and northwest is limestone with magnificent caves.
The quartzite and dolerite areas in the higher mountains show evidence of glaciation, and much of Australia's glaciated landscape is found on the Central Plateau and the Southwest. Cradle Mountain, another dolerite peak, for example, was a nunatak. The combination of these different rock types offers incredible scenery, much of it distinct from any other region of the world. In the far southwest corner of the state, the geology is almost completely quartzite, which gives the mountains the false impression of having snow-capped peaks year round.
Government
The form of the government of Tasmania is prescribed in its constitution, which dates from 1856, although it has been amended many times since then. Since 1901, Tasmania has been a state of the Commonwealth of Australia, and the Australian Constitution regulates its relationship with the Commonwealth and prescribes which powers each level of government enjoys.
The central plateau and the southeast portions of the island are mostly dolerite. Mount Wellington above Hobart is a good example, showing distinct columns known as the Organ Pipes. In the southern midlands as far south as Hobart, the dolerite is underlaid by sandstone and similar sedimentary stones. In the southwest, Precambrian quartzites was formed from very ancient sea sediments and form strikingly sharp ridges and ranges, such as Federation Peak or Frenchmans Cap.
In the northeast and east, continental granites can be seen, such as at Freycinet, similar to coastal granites on mainland Australia. In the northwest and west, mineral-rich volcanic rock can be seen at Mount Read near Rosebery, or at Mount Lyell near Queenstown. Also present in the south and northwest is limestone with magnificent caves.
The quartzite and dolerite areas in the higher mountains show evidence of glaciation, and much of Australia's glaciated landscape is found on the Central Plateau and the Southwest. Cradle Mountain, another dolerite peak, for example, was a nunatak. The combination of these different rock types offers incredible scenery, much of it distinct from any other region of the world. In the far southwest corner of the state, the geology is almost completely quartzite, which gives the mountains the false impression of having snow-capped peaks year round.
GovernmentThe form of the government of Tasmania is prescribed in its constitution, which dates from 1856, although it has been amended many times since then. Since 1901, Tasmania has been a state of the Commonwealth of Australia, and the Australian Constitution regulates its relationship with the Commonwealth and prescribes which powers each level of government enjoys.
Climate
The winter months are between June and August and are generally the wettest and coolest months in the state, with most high lying areas receiving considerable snowfall. Winter maximums are 12 °C (54 °F) on average along coastal areas and 3 °C (37 °F) on the central plateau, as a result of a series of cold fronts from the Southern Ocean.Spring is a season of transition, where winter weather patterns begin to take the shape of summer patterns, although snowfall is still common up until October. Spring is generally the windiest time of the year with afternoon sea breezes starting to take effect on the coast.
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