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Pelorus Islet
Pelorus Islet (also known as Pelorus Reef and Pelorus Rock) is an islet in the Australian state of South Australia located in Great Australian Bight off the south coast of Kangaroo Island approximately east south-east of Cape Gantheaume. It was named by Captain Francis Harding, RN after HMS ''Pelorus''. Description Pelorus Islet is about east south-east of Cape Gantheaume. It consists of three separate islets - a main round topped peak of height with a reef with several rocks sitting above water level to its east and another exposed rock to its south-west. It is inaccessible by boat as it is subject to continuous swells. Formation, geology and oceanography Peloris Islet was formed between 7500 and 8900 years ago after sea levels rose at the start of the Holocene when Kangaroo Island became separated from Yorke and Fleurieu Peninsulas. Pelorus Islet is the remains of a volcanic intrusion reported as being some 506 million years old. The islet rises abruptly fro ...
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Great Australian Bight
The Great Australian Bight is a large oceanic bight (geography), bight, or open bay, off the central and western portions of the southern Coast, coastline of mainland Australia. There are two definitions for its extent—one by the International Hydrographic Organization (IHO) and another by the Australian Hydrographic Service (AHS). The bight is generally considered part of the Indian Ocean, although the AHS classifies it as part of the Southern Ocean. Its coastline is characterized by cliff faces and rocky capes, making it an ideal location for whale-watching. This oceanic feature was first encountered by European explorers in 1627, and was accurately charted by English navigator Matthew Flinders in 1802. The Great Australian Bight came into existence about 50 million years ago when the supercontinent Gondwana broke apart, separating Antarctica from Australia. The Bight's waters are highly Biodiversity, biodiverse, especially in zooplankton, due to specific ocean currents. H ...
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Fleurieu Peninsula
The Fleurieu Peninsula ( ; locally mainly ) is a peninsula in the Australian state of South Australia located south of the state capital of Adelaide city centre, Adelaide. History Before British colonisation of South Australia, the western side of the peninsula was occupied by the Kaurna people, while several clans of the Ngarrindjeri lived on the eastern side. The people were sustained by the flora and fauna of the peninsula, for bush tucker, food and bush medicine. The bulrushes, Reed (plant), reeds and sedges were used for basket-weaving or making rope, trees provided wood for spears, and stone tool, stones were fashioned into tools. The Fleurieu Peninsula was named after Charles Pierre Claret de Fleurieu, the French explorer and hydrographer, by the French explorer Nicolas Baudin as he explored the south coast of Australia in 1802. The name came into official use in 1911 after Fleurieu's great-nephew, Count Alphonse de Fleurieu, visited Adelaide and met with the Council ...
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Cape Gantheaume Conservation Park
Cape Gantheaume Conservation Park, formerly the Cape Gantheaume National Park, is a protected area in the Australia, Australian state of South Australia located on the south coast of Kangaroo Island. Attractions include Murray Lagoon and D'Estrees Bay. It also includes Pelorus Islet located about southeast of Cape Gantheaume. Extent As of 1993, the conservation park consists of the three following areas: a parcel of land on the west side of D'Estrees Bay, a parcel of land including both Murray's Lagoon and the land to its immediate south and Pelorus Islet, about east south-east of Cape Gantheaume. History The conservation park was first dedicated as a protected area in 1971 and then again in 1972 following the enactment of the ''National Parks and Wildlife Act 1972''. In 1993, a large portion of the conservation park was excised and proclaimed as the Cape Gantheaume Wilderness Protection Area. Visitor services Camping facilities are available at both Murray Lagoon and D'Estr ...
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Protected Area
Protected areas or conservation areas are locations which receive protection because of their recognized natural or cultural values. Protected areas are those areas in which human presence or the exploitation of natural resources (e.g. firewood, non-timber forest products, water, ...) is limited. The term "protected area" also includes marine protected areas and transboundary protected areas across multiple borders. As of 2016, there are over 161,000 protected areas representing about 17 percent of the world's land surface area (excluding Antarctica). For waters under national jurisdiction beyond inland waters, there are 14,688 Marine Protected Areas (MPAs), covering approximately 10.2% of coastal and marine areas and 4.12% of global ocean areas. In contrast, only 0.25% of the world's oceans beyond national jurisdiction are covered by MPAs. In recent years, the 30 by 30 initiative has targeted to protect 30% of ocean territory and 30% of land territory worldwide by 2030; this ...
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Nicolas Baudin
Nicolas Thomas Baudin (; 17 February 175416 September 1803) was a French explorer, cartographer, naturalist and hydrographer, most notable for his explorations in Australia and the southern Pacific. He carried a few corms of Gros Michel banana from Southeast Asia, depositing them at a botanical garden on the Caribbean island of Martinique. Biography Early career Born a commoner in Saint-Martin-de-Ré on the Île de Ré on 17 February 1754, Nicolas Baudin joined the merchant navy as an apprentice () at the age of 15; he was then "of average height with brown hair". He then joined the French East India Company at the age of 20 on ''Flamand''. He returned from India on ''L'Étoile'' and arrived at Lorient. At the beginning of 1778, he was to set sail from Nantes on ''Lion'' as second lieutenant. It was a ship equipped by his uncle, Jean Peltier Dudoyer, at the request of the Americans, which would become a privateer and be renamed ''Deane''. At first the Minister for the N ...
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Greater Crested Tern
The greater crested tern Retrieved 28 February 2012 (''Thalasseus bergii''), also called crested tern, swift tern, or great crested tern, is a tern in the family Laridae that nests in dense colonies on coastlines and islands in the tropical and subtropical Old World. Its four or five subspecies breed in the area from South Africa around the Indian Ocean to the central Pacific Ocean, Pacific and Australia, all populations bird migration, dispersing widely from the breeding range after nesting. This large tern is closely related to other species in its genus, but can be distinguished by its darker, Shades of gray#Battleship_gray, battleship-grey upperparts, white forehead even in full breeding plumage, and greenish-tinged yellow (not orange or black) bill colour. The greater crested tern has dark grey upperparts, white underparts, a yellow bill, and a shaggy black crest that recedes in winter. Its young have a distinctive appearance, with strongly patterned grey, brown and white p ...
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New Zealand Fur Seal
''Arctocephalus forsteri'' (common names include the Australasian fur seal, South Australian fur seal, New Zealand fur seal, Antipodean fur seal, or long-nosed fur seal) is a species of fur seal found mainly around southern Australia and New Zealand. The name ''New Zealand fur seal'' is used by English speakers in New Zealand; ''kekeno'' is used in the Māori language. , the common name long-nosed fur seal has been proposed for the population of seals inhabiting Australia. Although the Australian and New Zealand populations show some genetic differences, their morphologies are very similar, and thus they remain classed as a single species. After the arrival of humans in New Zealand, and particularly after the arrival of Europeans in Australia and New Zealand, hunting reduced the population to near-extinction. Description Males have been reported as large as ; their average weight is about .Harcourt, R.G., (2001)"Advances in New Zealand mammalogy 1990–2000: Pinnipeds" ''Journ ...
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Intrusion
In geology, an igneous intrusion (or intrusive body or simply intrusion) is a body of intrusive igneous rock that forms by crystallization of magma slowly cooling below the surface of the Earth. Intrusions have a wide variety of forms and compositions, illustrated by examples like the Palisades Sill of New York and New Jersey; the Henry Mountains of Utah; the Bushveld Igneous Complex of South Africa; Shiprock in New Mexico; the Ardnamurchan intrusion in Scotland; and the Sierra Nevada Batholith of California. Because the solid country rock into which magma intrudes is an excellent insulator, cooling of the magma is extremely slow, and intrusive igneous rock is coarse-grained ( phaneritic). Intrusive igneous rocks are classified separately from extrusive igneous rocks, generally on the basis of their mineral content. The relative amounts of quartz, alkali feldspar, plagioclase, and feldspathoid is particularly important in classifying intrusive igneous rocks. Intrusio ...
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Yorke Peninsula
The Yorke Peninsula, known as Guuranda by the original inhabitants, the Narungga people, is a peninsula located northwest and west of Adelaide in South Australia, between Spencer Gulf on the west and Gulf St Vincent on the east. The peninsula is separated from Kangaroo Island to the south by Investigator Strait. The most populous town in the region is Kadina, South Australia, Kadina; Maitland, South Australia, Maitland is the most central town; and the south-western tip is occupied by Dhilba Guuranda-Innes National Park. History Prior to European settlement of the area commencing around 1840, following the British colonisation of South Australia, Yorke Peninsula was the home to the Narungga people. This Aboriginal Australian nation are the traditional owners of the land, and comprised four clans sharing the peninsula, known as Guuranda: Kurnara in the north, Dilpa in the south, Wari in the west, and Windarra in the east. The Narungga people also had names for the locations o ...
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Islet
An islet ( ) is generally a small island. Definitions vary, and are not precise, but some suggest that an islet is a very small, often unnamed, island with little or no vegetation to support human habitation. It may be made of rock, sand and/or hard coral; may be permanent or tidal (i.e. surfaced reef or seamount); and may exist in the sea, lakes, rivers or any other sizeable bodies of water. Definition As suggested by its origin ''islette'', an Old French diminutive of "isle", use of the term implies small size, but little attention is given to drawing an upper limit on its applicability. The World Landforms website says, "An islet landform is generally considered to be a rock or small island that has little vegetation and cannot sustain human habitation", and further that size may vary from a few square feet to several square miles, with no specific rule pertaining to size. Other terms * Ait (/eɪt/, like eight) or eyot (/aɪ(ə)t, eɪt/), a small island. It is espe ...
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Holocene
The Holocene () is the current geologic time scale, geological epoch, beginning approximately 11,700 years ago. It follows the Last Glacial Period, which concluded with the Holocene glacial retreat. The Holocene and the preceding Pleistocene together form the Quaternary period. The Holocene is an interglacial period within the ongoing Ice age, glacial cycles of the Quaternary, and is equivalent to Marine isotope stages, Marine Isotope Stage 1. The Holocene correlates with the last maximum axial tilt towards the Sun of the Earth#Axial tilt and seasons, Earth's obliquity. The Holocene corresponds with the rapid proliferation, growth, and impacts of the human species worldwide, including Recorded history, all of its written history, technological revolutions, development of major civilizations, and overall significant transition towards urban culture, urban living in the present. The human impact on modern-era Earth and its ecosystems may be considered of global significance for th ...
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Swell (ocean)
A swell, also sometimes referred to as ground swell, in the context of an ocean, sea or lake, is a series of mechanical waves that propagate along the interface between water and air under the predominating influence of gravity, and thus are often referred to as surface gravity waves. These surface gravity waves have their origin as wind waves, but are the consequence of dispersion of wind waves from distant weather systems, where wind blows for a duration of time over a fetch of water, and these waves move out from the source area at speeds that are a function of wave period and length. More generally, a swell consists of wind-generated waves that are not greatly affected by the local wind at that time. Swell waves often have a relatively long wavelength, as short wavelength waves carry less energy and dissipate faster, but this varies due to the size, strength, and duration of the weather system responsible for the swell and the size of the water body, and varies from event ...
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