Tixani
Tixani | |
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File:Ticsani.jpg
The Tixani lava dome complex (center)
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Highest point | |
Elevation | Lua error in Module:Convert at line 1851: attempt to index local 'en_value' (a nil value). [1] |
Coordinates | Lua error in package.lua at line 80: module 'strict' not found. [2] |
Geography | |
Location | Moquegua Region |
Parent range | Andes |
Geology | |
Mountain type | Lava domes |
Last eruption | 1800 ± 200 years |
Tixani[3] (hispanicized spelling Ticsani) is a volcano in the Andes of Peru, about 5,408 metres (17,743 ft) high. It is situated in the Moquegua Region, Mariscal Nieto Province, in the districts of Cuchumbaya and San Cristóbal.[4] Tixani, Ubinas and Huaynaputina sit on a volcanic lineament slightly oblique to the main volcanic front, and Tixani and Huaynaputina are the product of discrete silicic eruptions[5] and appear to share a geochemical source.[6] The volcano is of dacitic composition and has been K-Ar dated to be 190000 years old.[7] The volcano was constructed in several steps, starting from lava flows and volcaniclastics. This system collapsed westward leaving a 3 km (1.9 mi) long NW-SE ridge. In the middle Holocene, three andesitic lava domes formed with explosive eruptions. These were later overlaid with brown pumice and bombs from a later phreatomagmatic eruption. The activity of this system ended with the emplacement of the Tixani lava dome.[8] One dacitic pumice fall of 0,4km3 has been dated ca 11600 yr BP.[9]
Tixani was one of the volcanoes ascended in summer 1902 by Francisco Alayza Paz Soldan.[10]
Recent activity
In May 1999, inhabitants of the neighbouring towns of Calacoa, Cuchumbaya and Carumas noticed earthquake swarms with the maximum strength magnitude 3.5 at a minimum depth of 50 kilometres (31 mi), raising fears of a reactivation of the volcanic system.[11] Between November 2005 and September 2006 a swarm of earthquakes on the NE side was observed,[12] resulting in surface deformation in the northwest sector of the volcano and subsidence in its southeast sector.[13]
References
- ↑ Hernando Tavera, La Crisis Sísmica de octubre del 2005 en la Región del volcán Ticsani, Instituto Geofísico del Perú, Lima 2006 (in Spanish)
- ↑ ign.gob.pe IGN, Peru
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ escale.minedu.gob.pe - UGEL Map of the Mariscal Nieto Province (Moquegua Region)
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
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- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.