|
Seven Sisters (Queensland)
The Pinnacles (aka the Seven Sisters) are a series of seven volcanic cinder cones on the Atherton Tableland, near Yungaburra, Queensland, Australia. They were formed more than 350,000 years ago. The vents have an overall southwest-northeast alignment, which suggests that the ascending magma utilised a pre-existing fracture within the Earth's crust. Several of the craters are breached to the southeast, possibly due to the prevailing southeast winds blowing ash and scoria to the northwest and so building the cones more to that side. Parts of the rocky basalt Basalt (; ) is an aphanite, aphanitic (fine-grained) extrusive igneous rock formed from the rapid cooling of low-viscosity lava rich in magnesium and iron (mafic lava) exposed at or very near the planetary surface, surface of a terrestrial ... flows are still densely forested and can be seen surrounding the Curtain Fig Tree. See also * Lake Barrine * Lake Eacham (Yidyam) * Lake Tinaroo * Mount Hypipamee Crater ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cinder Cone
A cinder cone or scoria cone is a steep, volcanic cone, conical landform of loose pyroclastic rock, pyroclastic fragments, such as volcanic ash, clinkers, or scoria that has been built around a volcanic vent. The pyroclastic fragments are formed by explosive eruptions or lava fountains from a single, typically cylindrical, vent. As the gas-charged lava is blown violently into the air, it breaks into small fragments that solidify and fall as either cinders, clinkers, or scoria around the vent to form a cone that is often symmetrical, with slopes between 30° and 40° and a nearly circular base. Most cinder cones have a bowl-shaped volcanic crater, crater at the summit. Mechanics of eruption Cinder cones range in size from tens to hundreds of meters tall. They are composed of loose pyroclastic material (Scoria, cinder or scoria), which distinguishes them from ''spatter cones'', which are composed of agglomerated volcanic bombs. The pyroclastic material making up a cinder cone ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atherton Tableland
The Atherton Tableland is a fertile plateau, which is part of the Great Dividing Range in Queensland, Australia. It has very deep, rich basaltic soils and the main industry is agriculture. The principal river flowing across the plateau is the Barron River (Australia), Barron River, which was dammed to form the irrigation reservoir named Lake Tinaroo. Unlike many other rural areas, the Tablelands is experiencing a significant growth in population. Physiography This area is a distinct physical geography, physiographic section of the larger North Queensland Highlands province, which in turn is part of the larger East Australian Cordillera physiographic division. South of the Tablelands is the Bellenden Ker Range. Geological history Around 100 million years ago, the eastern edge of the Australian continent extended much further to the east, before tectonic forces fractured the eastern margin, pulling it apart. At the same time, slowly rising mantle material caused a doming up of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yungaburra, Queensland
Yungaburra is a rural town and Suburbs and localities (Australia), locality in the Tablelands Region, Queensland, Australia. In the , the locality of Yungaburra had a population of 1,272 people. Geography Yungaburra is on the Atherton Tableland in Far North Queensland. The landscape around Yungaburra has been shaped by millennia of volcanic activity. The most recent eruptions were approximately 10,000 years ago. Notable geological features nearby include: *The Pinnacles (Atherton Tableland), Seven Sisters and Mount Quincan are volcanic cones. *Lake Eacham (Queensland), Lake Eacham (Yidyam) and Lake Barrine are lakes inside volcanic craters. *Mount Hypipamee Crater is a diatreme (crater). *Tinaroo Dam submerged the old town of Kulara is visible, on whose cricket-pitch, when drought conditions drastically lower the water-level, locals play cricket matches. History Prior to European settlement, the area around Yungaburra was inhabited by about sixteen different Indigenous Aus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australia
Australia, officially the Commonwealth of Australia, is a country comprising mainland Australia, the mainland of the Australia (continent), Australian continent, the island of Tasmania and list of islands of Australia, numerous smaller islands. It has a total area of , making it the list of countries and dependencies by area, sixth-largest country in the world and the largest in Oceania. Australia is the world's flattest and driest inhabited continent. It is a megadiverse countries, megadiverse country, and its size gives it a wide variety of landscapes and Climate of Australia, climates including deserts of Australia, deserts in the Outback, interior and forests of Australia, tropical rainforests along the Eastern states of Australia, coast. The ancestors of Aboriginal Australians began arriving from south-east Asia 50,000 to 65,000 years ago, during the Last Glacial Period, last glacial period. By the time of British settlement, Aboriginal Australians spoke 250 distinct l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scoria
Scoria or cinder is a pyroclastic, highly vesicular, dark-colored volcanic rock formed by ejection from a volcano as a molten blob and cooled in the air to form discrete grains called clasts.Neuendorf, K.K.E., J.P. Mehl, Jr., and J.A. Jackson, eds. (2005) ''Glossary of Geology'' (5th ed.). Alexandria, Virginia, American Geological Institute. 779 pp. It is typically dark in color (brown, black or purplish-red), and basaltic or andesitic in composition. Scoria has relatively low density, as it is riddled with macroscopic ellipsoidal vesicles (gas bubbles), but in contrast to pumice, scoria always has a specific gravity greater than 1 and sinks in water. Scoria may form as part of a lava flow, typically near its surface, or as fragmental ejecta ( lapilli, blocks, and bombs), for instance in Strombolian eruptions that form steep-sided scoria cones, also called cinder cones. Scoria's holes or vesicles form when gases dissolved in the original magma come out of solution as it er ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Basalt
Basalt (; ) is an aphanite, aphanitic (fine-grained) extrusive igneous rock formed from the rapid cooling of low-viscosity lava rich in magnesium and iron (mafic lava) exposed at or very near the planetary surface, surface of a terrestrial planet, rocky planet or natural satellite, moon. More than 90% of all volcanic rock on Earth is basalt. Rapid-cooling, fine-grained basalt is chemically equivalent to slow-cooling, coarse-grained gabbro. The eruption of basalt lava is observed by geologists at about 20 volcanoes per year. Basalt is also an important rock type on other planetary bodies in the Solar System. For example, the bulk of the plains of volcanism on Venus, Venus, which cover ~80% of the surface, are basaltic; the lunar mare, lunar maria are plains of flood-basaltic lava flows; and basalt is a common rock on the surface of Mars. Molten basalt lava has a low viscosity due to its relatively low silica content (between 45% and 52%), resulting in rapidly moving lava flo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Curtain Fig Tree
Curtain Fig Tree is a heritage-listed tree at Curtain Fig Tree Road, East Barron, Queensland, East Barron near Yungaburra, Tablelands Region, Queensland, Australia. It is one of the largest trees in Tropical North Queensland, Australia, and one of the best known attractions on the Atherton Tableland. It was added to the Queensland Heritage Register on 3 December 2009. Growth of a strangler fig The Curtain Fig Tree is of the strangler fig species ''Ficus virens''. Normally these figs germinate on top of another tree and try to grow roots into the ground. Once this important step is accomplished, the fig will grow vigorously, finally kill the hosting tree and then grow on independently. In this case, the hosting tree tilted towards a neighbouring tree, and the fig also grew around that one. Its curtain of aerial roots drops () to the ground. Although these figs kill their hosts, they are an epiphyte which basically feeds from the ground, unlike a parasitic plant which feeds f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Barrine
Lake Barrine is a freshwater lake on the eastern parts of Atherton Tableland in the locality of Lake Barrine, in the Tablelands Region of Far North Queensland, Australia, close to Lake Eacham. The lake and surrounds are protected within the Crater Lakes National Park and are accessible via the Gillies Highway. Origin Lake Barrine was formed over 17,000 years ago when a large volcano erupted, leaving a crater that over time filled up with water to create a lake. The crater or maar was formed as a result of a series of volcanic explosions. These explosions were caused by the hot molten rock coming into contact with groundwater. This caused a build-up of steam, gases and pressure which blasted the central core from the volcano. This massive explosion left a huge crater, which filled with rainwater to create Lake Barrine. Local Aboriginals called the lake Barany. Description The largest of the natural volcanic lakes in the area, Lake Barrine is 730 m above sea lev ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Eacham (Queensland)
Lake Eacham (originally ''Yidyam'' or ''Wiinggina'') is a popular lake of volcanic origin on the Atherton Tableland of Queensland, Australia, within the World Heritage listed Wet Tropics of Queensland. Ngadjonji - Earthwatch web page. Accessed 5 November 2007. It is within the of Lake Eacham in the local government area. ...
|
Lake Tinaroo
Lake Tinaroo is a rural locality in the Tablelands Region of Queensland, Australia. In the , Lake Tinaroo had "no people or a very low population". Geography The locality includes the lake itself (also called Lake Tinaroo) created by the Tinaroo Dam The Tinaroo Dam, officially the Tinaroo Falls Dam, is a major ungated concrete gravity dam, gravity dam with a Spillway#Types, central ogee spillway across the Barron River (Queensland), Barron River located on the Atherton Tableland in Far Nor ... as well as the foreshores of the lake and some of the creeks that flow into the lake. It is mostly a water locality with very little land. Demographics In the , Lake Tinaroo had "no people or a very low population". In the , Lake Tinaroo had "no people or a very low population". Education Tinaroo Environmental Education Centre is an Outdoor and Environmental Education Centre at Black Gully Road (). References {{Tablelands Region Tablelands Region Localities in Queen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Hypipamee Crater
The Mount Hypipamee Crater, also known as The Crater, is a huge diatreme located south-east of Herberton on the Atherton Tableland in Far North Queensland, Australia. It is 61 metres in diameter and 82 metres deep. It has been part of Indigenous culture and lore from pre-colonial days. Colonists encountered it by accident when in 1879 Weate and party nearly fell into it. They were heading towards the Mulgrave River on a five-month gold prospecting expedition. The national park was established in 1908 under the sponsorship of a Mr. Ringrose of Herberton. There was a debate at the "crater trust" meetings during the 1930s as to what to call it; the "Herberton Crater" was one suggestion but it was decided to call it by the traditional Dyrbal name, Mount Hypipamee. A request was written to Ernest Gribble of Palm Island to find the origin of the name. The name Hypipamee is a corruption of the Aboriginal word, ''nabbanabbamee'', which is connected with a legend of tw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
