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La Malinche volcan

stratovolcan 4461 m / 14,636 ft
Central Mexico, 19.23°N / -98.03°W
Condition actuelle: normal / en sommeil (1 sur 5) | Reports
La Malinche livres
Style éruptif tipique: explosive, formation of summit lava domes with generation of pyroclastic flows caused by dome collapse
Eruptions du volcan La Malinche: 1170 BC ± 50 years (radiocarbon-dated), 7000 BP, 9000 BP, 9-12,000 BP, 21,500 BP, 39,000 BP No recent earthquakes
HeureMag. / DepthDistanceLocation
La Malinche is a Pleistocene andesitic-dacitic stratovolcano in the eastern Trans Mexican Volcanic Belt located only 25 km from the city of Puebla. La Malinche is heavily eroded and probably in in its final stages of activity, but could still erupt in the future, in which case it would pose a serious hazard to Puebla city.
La Malinche has several dacitic summit lava domes that have filled the summit crater. Several small flank vents are located on the flanks.

Introduction:

La Malinche is an eroded stratovolcano, cut by deep canyons, that rises to 4461 m NE of the city of Puebla. Malinche occupies an isolated position between the Popocatépetl-Iztaccíhuatl and Orizaba-Cofre de Perote volcanic ranges. Much of the andesitic-dacitic volcano was constructed during the Pleistocene, and the summit exhibits evidence of glacial erosion.
This volcano remains relatively unstudied, however, recent work has identified tephra layers of Holocene age that originated from Volcán la Malinche. Several tuff cones and explosion craters, at least one of Holocene age, are found on the flanks of the volcano; one of the most prominent of these is the Xalapaxco tuff cone complex on the lower NE flank. Holocene lahars from La Malinche associated with an eruption about 3100 years ago reached the Puebla basin and affected precolumbian settlements.
(Smithsonian / GVP)


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