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Ticsani
Ticsani is a volcano in Peru northwest of Moquegua and consists of two volcanoes ("Old Ticsani" and "Modern Ticsani") that form a complex. "Old Ticsani" is a compound volcano that underwent a large collapse in the past and shed of mass down the Rio Tambo valley. Today an arcuate ridge remains of this edifice. "Modern Ticsani" is a complex of three lava domes which were emplaced during the Holocene. Two large eruptions took place during the Holocene, producing the so-called "Grey Ticsani" and "Brown Ticsani" deposits; the last eruption occurred after the 1600 eruption of neighbouring Huaynaputina. The volcano is seismically active and features active hot springs and fumaroles; since 2015 the volcano is monitored by the Peruvian government. Geography and geomorphology Ticsani is in the Ichuna District of Peru, northwest of Moquegua. The Putina River passes northwest and the Carumas River southwest of the volcano. The area is remote, which has hampered exploration efforts. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Huaynaputina
Huaynaputina ( ; ) is a volcano in a volcanic high plateau in southern Peru. Lying in the Central Volcanic Zone of the Andes, it was formed by the subduction of the oceanic Nazca Plate under the continental South American Plate. Huaynaputina is a large volcanic crater, lacking an identifiable mountain profile, with an outer stratovolcano and three younger volcanic vents within an amphitheatre-shaped structure that is either a former caldera or a remnant of glacial erosion. The volcano has erupted dacitic magma. In the Holocene, Huaynaputina has erupted several times, including on 19February 1600 – the largest eruption ever recorded in South America – which continued with a series of events into March. Witnessed by people in the city of Arequipa, it killed at least 1,000–1,500 people in the region, wiped out vegetation, buried the surrounding area with of volcanic rock and damaged infrastructure and economic resources. The eruption had a significant impact on Earth's cli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ubinas
Ubinas is an active stratovolcano in the Moquegua Region of southern Peru, approximately east of the city of Arequipa. Part of the Central Volcanic Zone of the Andes, it rises above sea level. The volcano's summit is cut by a and caldera, which itself contains a smaller crater. Below the summit, Ubinas has the shape of an upwards-steepening cone with a prominent notch on the southern side. The gently sloping lower part of the volcano is also known as Ubinas I and the steeper upper part as Ubinas II; they represent different stages in the volcano's geological history. The most active volcano in Peru, Ubinas has a history of small to moderate explosive eruptions as well as a few larger eruptions, such as in 1667, along with persistent degassing and ash emissions. Activity at the volcano began in the Pleistocene epoch, and led to the growth of the current mountain in two phases. Among the recent eruptions was the 2006–2007 event, which produced eruption columns and led to as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coropuna
Coropuna is a dormant compound volcano located in the Andes mountains of southeast-central Peru. The upper reaches of Coropuna consist of several perennially snowbound conical summits, lending it the name Nevado Coropuna in Spanish. The complex extends over an area of and its highest summit reaches an altitude of above sea level. This makes the Coropuna complex the third-highest of Peru. Its thick ice cap is the most extensive in Earth's tropical zone, with several outlet glaciers stretching out to lower altitudes. Below an elevation of , there are various vegetation belts which include trees, peat bogs, grasses and also agricultural areas and pastures. The Coropuna complex consists of several stratovolcanos. These are composed chiefly of ignimbrites and lava flows on a basement formed by Middle Miocene ignimbrites and lava flows. The Coropuna complex has been active for at least five million years, with the bulk of the current cone having been formed during the Quaterna ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Casiri (Tacna)
Casiri, also known as Paucarani, is an about high complex volcano in the Barroso mountain range of the Andes, in the Tacna Region of Peru. It consists of four individual volcanic edifices with lava domes; the southeasternmost edifice has been active during the Holocene, producing thick lava flows that have overrun moraines of Pleistocene age. The youngest lava flow has been dated to 2,600 ± 400 years ago. Although no historical eruptions are known, the volcano is considered to be potentially active and is monitored. The volcano features geothermal manifestations and is linked to a larger geothermal field that has been prospected for geothermal power generation. There are two sulfur mines on the volcano, and the Paucarani reservoir that contains the bulk of Tacna's water supply is associated with Casiri: The Rio Uchusuma that flows through the reservoir originates on the volcano and the reservoir is located on the foot of Casiri. Name The name "Casiri" might mean "bawler" ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Purupuruni
Purupuruni is a group of lava domes in southern Peru and a correlative geological formation. They are among the many volcanoes that exist in Peru and whose activity has been associated with the subduction of the Nazca Plate beneath the South America Plate. Purupuruni is associated with a geothermal field and a caldera. Volcanic activity occurred during the Pleistocene 53,000 ± 8,000 years ago but also during the Holocene about 5,300 ± 1,100 years ago; today the volcano is considered to be a low hazard volcano but is being monitored nevertheless. Geography and geomorphology Purupuruni lies in the Cordillera Occidental north of the border with Chile, about away from Tacna and only about from the town of Tarata. The volcano is part of the geopark. The term means dung in Aymara. The Purupuruni volcano, also known as Purupurini, is a wide complex of four large lava domes at an elevation of or . The domes cover an area of about , are up to high and are isolated an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ampato
Ampato (possibly from Quechua ''hamp'atu'' or from Aymara ''jamp'atu'', both meaning "frog") is a dormant stratovolcano in the Andes of southern Peru. It lies about northwest of Arequipa and is part of a north-south chain that includes the volcanoes Hualca Hualca and Sabancaya, the last of which has been active in historical time. Ampato consists of three volcanic cones, which lie on top of an older eroded volcanic edifice. They were formed sequentially by extrusion of lava flows, but Ampato has also had explosive eruptions which have deposited ash, lapilli and pumice in the surrounding landscape. One young lava flow has been dated to 17,000 ± 6,000 years before present, but a summit lava dome is even younger, and Holocene ash layers in surrounding peat bogs may testify to the occurrence of recent eruptions. The present-day volcano is covered by an ice cap, and during the last glacial maximum glaciers advanced to low altitudes. In 1995, an Inca mummy known as Mummy Juanita ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yucamane
Yucamane, Yucamani or Yucumane is an andesitic stratovolcano in the Tacna Region of southern Peru. It is part of the Peruvian segment of the Central Volcanic Zone, one of the three volcanic belts of the Andes generated by the subduction of the Nazca plate beneath the South America plate. Peru's active volcanoes Ubinas, Sabancaya and El Misti are also part of the Central Volcanic Zone. Yucamane, together with the volcanoes Yucamane Chico and Calientes farther north, forms a Pleistocene volcanic group. Yucamane is constructed mainly by lava flows with subordinate pyroclastic deposits, and it has a well preserved summit crater with fumarolic activity. The volcanic group was active in the Pleistocene epoch, with the Holocene featuring several explosive eruptions occurring at Yucamane proper and effusive eruptions at Calientes. The last dated eruption of Yucamane occurred 1,320 BCE; whether there were historical eruptions is unclear as some eruptions attributed to Yucamane probab ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tutupaca
Tutupaca is a volcano in the region of Tacna in Peru. It is part of the Peruvian segment of the Central Volcanic Zone, one of several volcanic belts in the Andes. Tutupaca consists of three overlapping volcanoes formed by lava flows and lava domes made out of andesite and dacite, which grew on top of older volcanic rocks. The highest of these is usually reported to be tall and was glaciated in the past. Several volcanoes in Peru have been active in recent times, including Tutupaca. Their volcanism is caused by the subduction of the Nazca Plate beneath the South America Plate. One of these volcanoes collapsed in historical time, probably in 1802, generating a large debris avalanche with a volume likely exceeding and a pyroclastic flow. The associated eruption was among the largest in Peru for which there are historical records. The volcano became active about 700,000 years ago, and activity continued into the Holocene, but whether there were historical eruptions was initially u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chachani
Chachani is a volcanic group in southern Peru, northwest of the city of Arequipa. Part of the Central Volcanic Zone of the Andes, it is above sea level. It consists of several lava domes and individual volcanoes such as Nocarane, along with lava shields such as the Airport Domes. Underneath Chachani lies a caldera. During the Pliocene and early Pleistocene, the volcanic group produced large ignimbrites such as the La Joya, Arequipa Airport and Yura Tuff ignimbrites; afterwards the volcanic group proper grew in the caldera until about 56,500 years ago. There have not been any eruptions during historical time, but the volcano is considered to be only dormant and due to its closeness to the city of Arequipa is considered high risk. Name The name means "brave" in Aymara or "mountain of man"/"mountain of male"; alternative spellings "Cacheni" and "Charchani" are also known. Geography and geomorphology The volcano lies in the Andes of southern Peru, northwest of Arequipa an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solimana (volcano)
Solimana is a volcanic massif in the Andes of Peru, South America, that is approximately high. It is considered an extinct stratovolcano that is part of the Central Volcanic Zone, one of the volcanic belts of the Andes. It features a caldera as well as traces of a sector collapse and subsequent erosion. The volcano is glaciated. Geomorphology and geography Regional It is situated in the Arequipa Region, Condesuyos Province, in the districts of Chichas and Salamanca, and in the La Unión Province, in the districts of Cotahuasi and Toro. Several towns lie around the volcano. Solimana is part of the Peruvian segment of the Central Volcanic Zone of the Andes. The Central Volcanic Zone in this segment has both generated large composite volcanoes which rise above their basement and monogenetic volcanoes and volcanic fields. This zone of volcanoes includes, from northwest to southeast, Sara Sara, Solimana, Coropuna, Andagua volcanic field, Huambo volcanic field, Ampato, Saban ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sabancaya
Sabancaya is an active stratovolcano in the Andes of southern Peru, about northwest of Arequipa. It is considered part of the Central Volcanic Zone of the Andes, one of the three distinct volcanic belts of the Andes. The Central Volcanic Zone includes a number of volcanoes, some of which like Huaynaputina have had large eruptions and others such as Sabancaya and Ubinas have been active in historical time. Sabancaya forms a volcanic complex together with Hualca Hualca to the north and Ampato to the south and has erupted andesite and dacite. It is covered by a small ice cap which leads to a risk of lahars during eruptions. Sabancaya has generated numerous long lava flows especially during the early Holocene, while activity in the later Holocene has been more explosive. Historical reports indicate eruptions during the 18th century. The volcano returned to activity in 1986, culminating in a large eruption in 1990. Since then it has been continuously active with the emission of ash ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Andesite
Andesite () is a volcanic rock of intermediate composition. In a general sense, it is the intermediate type between silica-poor basalt and silica-rich rhyolite. It is fine-grained (aphanitic) to porphyritic in texture, and is composed predominantly of sodium-rich plagioclase plus pyroxene or hornblende. Andesite is the extrusive equivalent of plutonic diorite. Characteristic of subduction zones, andesite represents the dominant rock type in island arcs. The average composition of the continental crust is andesitic. Along with basalts, andesites are a component of the Geology of Mars, Martian crust. The name ''andesite'' is derived from the Andes mountain range, where this rock type is found in abundance. It was first applied by Christian Leopold von Buch in 1826. Description Andesite is an aphanitic (fine-grained) igneous rock that is intermediate in its content of silica and low in alkali metals. It has less than 20% quartz and 10% feldspathoid by volume, with at least 6 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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