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Ambitle
Ambitle is a volcano, volcanic island which, together with Babase, another volcanic island, is one of the two Feni Islands in the Bismarck Archipelago. The island is located within the Papua New Guinea's New Ireland Province, to the east of New Ireland (island), the island of New Ireland. Ambitle is a stratovolcano, reaching above sea level. It last erupted in about 350 BCE based on radiocarbon dating. Its caldera, wide, contains thermal areas on its western side. Venting of hydrothermal water also occurs in coral reefs to the west of this island. See also *List of volcanoes in Papua New Guinea References * Islands of Papua New Guinea Stratovolcanoes of Papua New Guinea New Ireland Province Pliocene stratovolcanoes Pleistocene stratovolcanoes Holocene stratovolcanoes {{NewIrelandProvince-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Feni Islands
The Feni Islands are an island group in Papua New Guinea, located east of New Ireland, at . It is a part of the Bismarck Archipelago. The largest island of the group is Ambitle, the other island is Babase Island Babase Island is an island of the Feni Islands in Papua New Guinea, located east of New Ireland. It consists of a stratovolcano and a lava dome, joined by an isthmus An isthmus (; ; ) is a narrow piece of land connecting two larger areas .... References External links Feni Islands on oceandots.com Islands of Papua New Guinea New Ireland Province {{NewIrelandProvince-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Babase
Babase Island is an island of the Feni Islands in Papua New Guinea, located east of New Ireland. It consists of a stratovolcano and a lava dome, joined by an isthmus An isthmus (; ; ) is a narrow piece of land connecting two larger areas across an expanse of water by which they are otherwise separated. A tombolo is an isthmus that consists of a spit or bar, and a strait is the sea counterpart of an isthmu .... References * Islands of Papua New Guinea Stratovolcanoes of Papua New Guinea New Ireland Province {{NewIrelandProvince-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Volcanoes In Papua New Guinea ...
This is a list of active and extinct volcanoes in Papua New Guinea. New Guinea Admiralty Islands Bougainville D'Entrecasteaux Islands New Britain New Ireland Offshore islands References * Volcanoes of the World External links * {{Global Volcanism Program Papua New Guinea * Volcanoes A volcano is a rupture in the crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. On Earth, volcanoes are most often found where tectonic plates are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New Ireland Province
New Ireland Province, formerly New Mecklenburg (german: Neu-Mecklenburg), and Nova Hibernia, is the northeasternmost province of Papua New Guinea. Physical geography The largest island of the province is New Ireland. Also part of the province are numerous smaller islands, including Saint Matthias Group (Mussau, Emirau), New Hanover, Djaul, Tabar Group ( Tabar, Tatau, Simberi), Lihir, Tanga Group (Malendok, Boang), Feni Islands (Ambitle, Babase) and Anir. The land area of the province is around 9 560 km². The sea area within the Exclusive Economic Zone (EEZ) of New Ireland Province is around 230,000 km². Ecology In the early days of the French Revolution while searching for a lost scientific expedition the vessel La Recherche passed by New Ireland. On board was the prominent botanist Jacques-Julien Houtou de Labillardière who noted in his journal fine stands of teak (tectona grandis) trees growing at the southern end of the island. This marks the easter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coral Reef
A coral reef is an underwater ecosystem characterized by reef-building corals. Reefs are formed of colonies of coral polyps held together by calcium carbonate. Most coral reefs are built from stony corals, whose polyps cluster in groups. Coral belongs to the class Anthozoa in the animal phylum Cnidaria, which includes sea anemones and jellyfish. Unlike sea anemones, corals secrete hard carbonate exoskeletons that support and protect the coral. Most reefs grow best in warm, shallow, clear, sunny and agitated water. Coral reefs first appeared 485 million years ago, at the dawn of the Early Ordovician, displacing the microbial and sponge reefs of the Cambrian. Sometimes called ''rainforests of the sea'', shallow coral reefs form some of Earth's most diverse ecosystems. They occupy less than 0.1% of the world's ocean area, about half the area of France, yet they provide a home for at least 25% of all marine species, including fish, mollusks, worms, crustaceans, echinoderms, sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pliocene Stratovolcanoes
The Pliocene ( ; also Pleiocene) is the epoch in the geologic time scale that extends from 5.333 million to 2.58See the 2014 version of the ICS geologic time scale million years ago. It is the second and most recent epoch of the Period in the . The Pliocene follows the Epoch and is followed by the |
Stratovolcanoes Of Papua New Guinea
A stratovolcano, also known as a composite volcano, is a conical volcano built up by many layers (strata) of hardened lava and tephra. Unlike shield volcanoes, stratovolcanoes are characterized by a steep profile with a summit crater and periodic intervals of explosive eruptions and effusive eruptions, although some have collapsed summit craters called calderas. The lava flowing from stratovolcanoes typically cools and hardens before spreading far, due to high viscosity. The magma forming this lava is often felsic, having high-to-intermediate levels of silica (as in rhyolite, dacite, or andesite), with lesser amounts of less-viscous mafic magma. Extensive felsic lava flows are uncommon, but have travelled as far as . Stratovolcanoes are sometimes called composite volcanoes because of their composite stratified structure, built up from sequential outpourings of erupted materials. They are among the most common types of volcanoes, in contrast to the less common shield volcanoes. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Islands Of Papua New Guinea
An island (or isle) is an isolated piece of habitat that is surrounded by a dramatically different habitat, such as water. Very small islands such as emergent land features on atolls can be called islets, skerries, cays or keys. An island in a river or a lake island may be called an eyot or ait, and a small island off the coast may be called a holm. Sedimentary islands in the Ganges delta are called chars. A grouping of geographically or geologically related islands, such as the Philippines, is referred to as an archipelago. There are two main types of islands in the sea: continental and oceanic. There are also artificial islands, which are man-made. Etymology The word ''island'' derives from Middle English ''iland'', from Old English ''igland'' (from ''ig'' or ''ieg'', similarly meaning 'island' when used independently, and -land carrying its contemporary meaning; cf. Dutch ''eiland'' ("island"), German ''Eiland'' ("small island")). However, the spelling of the word ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radiocarbon Dating
Radiocarbon dating (also referred to as carbon dating or carbon-14 dating) is a method for determining the age of an object containing organic material by using the properties of radiocarbon, a radioactive isotope of carbon. The method was developed in the late 1940s at the University of Chicago by Willard Libby. It is based on the fact that radiocarbon () is constantly being created in the Earth's atmosphere by the interaction of cosmic rays with atmospheric nitrogen. The resulting combines with atmospheric oxygen to form radioactive carbon dioxide, which is incorporated into plants by photosynthesis; animals then acquire by eating the plants. When the animal or plant dies, it stops exchanging carbon with its environment, and thereafter the amount of it contains begins to decrease as the undergoes radioactive decay. Measuring the amount of in a sample from a dead plant or animal, such as a piece of wood or a fragment of bone, provides information that can be used to calc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
