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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 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 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 was first discove ... Referen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cinder Cone
A cinder cone (or scoria cone) is a steep conical hill of loose pyroclastic fragments, such as volcanic clinkers, volcanic ash, 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 often is symmetrical; with slopes between 30 and 40°; and a nearly circular ground plan. Most cinder cones have a bowl-shaped crater at the summit. Mechanics of eruption Cinder cones range in size from tens to hundreds of meters tall and often have a bowl-shaped crater at the summit. They are composed of loose pyroclastic material (cinder or scoria), which distinguishes them from ''spatter cones'', which are composed of agglomerated volcanic bombs. The pyroclastic material making up a cinder ... [...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. The principal river flowing across the plateau is the Barron River. It was dammed to form an irrigation reservoir named Lake Tinaroo. Tinaroo Hydro, a small 1.6 MW hydroelectric power station, is located near the spillway. Physiography This area is a distinct 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 About 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 the continental crust. As the eastern part of the continent broke away, it gradually sank below sea level. Since that time, the up ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yungaburra, Queensland
Yungaburra is a rural town and locality in the Tablelands Region, Queensland, Australia. In the , the locality of Yungaburra had a population of 1,239 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: * Seven Sisters and Mount Quincan are volcanic cones. * 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 groups, among them the Ngatjan, with the custodians being Yidinji people and neighbouring Ngajanji peop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australia
Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, smaller islands. With an area of , Australia is the largest country by area in Oceania and the world's List of countries and dependencies by area, sixth-largest country. Australia is the oldest, flattest, and driest inhabited continent, with the least fertile soils. It is a Megadiverse countries, megadiverse country, and its size gives it a wide variety of landscapes and climates, with Deserts of Australia, deserts in the centre, tropical Forests of Australia, rainforests in the north-east, and List of mountains in Australia, mountain ranges in the south-east. The ancestors of Aboriginal Australians began arriving from south east Asia approximately Early human migrations#Nearby Oceania, 65,000 years ago, during the Last Glacial Period, last i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scoria
Scoria is a pyroclastic, highly vesicular, dark-colored volcanic rock that was ejected from a volcano as a molten blob and cooled in the air to form discrete grains or 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 (generally dark brown, black or purplish-red), and basaltic or andesitic in composition. Scoria is relatively low in density as a result of its numerous macroscopic ellipsoidal vesicles, but in contrast to pumice, all scoria has a specific gravity greater than 1, and sinks in water. The holes or vesicles form when gases that were dissolved in the magma come out of solution as it erupts, creating bubbles in the molten rock, some of which are frozen in place as the rock cools and solidifies. Scoria may form as part of a lava flow, typically near its surface, or as fragmental ejecta (lapilli, blocks and bombs), for inst ... [...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, 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 neighboring 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 from the sap of the host plant/tree. ... [...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 l ... [...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. Origin ...
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Lake Tinaroo
Lake Tinaroo is a rural locality in the Tablelands Region, Queensland, Australia. In the , Lake Tinaroo had a population of 0 people. 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 with a central ogee spillway across the Barron River located on the Atherton Tableland in Far North Queensland, Australia. The dam's purpose include ... and 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. Education Tinaroo Environmental Education Centre is an Outdoor and Environmental Education Centre at Black Gully Road (). References {{Tablelands Region Tablelands Region Localities in Queensland ... [...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 was first discovered 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 “the crater”, the "Herberton Crater" was one suggestion but it was decided to call it 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 two young men who cut down a sacred candlenut tree, only to be swallow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Landforms Of Far North Queensland
A landform is a natural or anthropogenic land feature on the solid surface of the Earth or other planetary body. Landforms together make up a given terrain, and their arrangement in the landscape is known as topography. Landforms include hills, mountains, canyons, and valleys, as well as shoreline features such as bays, peninsulas, and seas, including submerged features such as mid-ocean ridges, volcanoes, and the great ocean basins. Physical characteristics Landforms are categorized by characteristic physical attributes such as elevation, slope, orientation, stratification, rock exposure and soil type. Gross physical features or landforms include intuitive elements such as berms, mounds, hills, ridges, cliffs, valleys, rivers, peninsulas, volcanoes, and numerous other structural and size-scaled (e.g. ponds vs. lakes, hills vs. mountains) elements including various kinds of inland and oceanic waterbodies and sub-surface features. Mountains, hills, plateaux, and plains are the fou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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