Nevado del Tolima

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Nevado del Tolima
Copo del nevado del tolima.jpg
Nevado del Tolima in 2017
Highest point
Elevation 5,276 m (17,310 ft) [1]
Listing Volcanoes of Colombia
Coordinates 4°39′30″N 75°19′46″W / 4.65833°N 75.32944°W / 4.65833; -75.32944Coordinates: 4°39′30″N 75°19′46″W / 4.65833°N 75.32944°W / 4.65833; -75.32944[1]
Geography
Location Tolima
 Colombia
Parent range Central Ranges, Andes
Geology
Mountain type Andesitic stratovolcano
Volcanic belt North Volcanic Zone
 Andean Volcanic Belt
Last eruption March 1943[1]

Nevado del Tolima is a stratovolcano located in Tolima, Colombia, south of Nevado del Ruiz volcano. The andesitic volcano overlies the Eocene El Bosque Batholith, dated at 49.1 ± 1.7 Ma.[2][3]

The steep-sided, glacier-clad Nevado del Tolima volcano contrasts with the broad profile of Nevado del Ruiz volcano to the north. The andesitic-dacitic younger Tolima volcano formed during the past 40,000 years, rising above and largely obscuring a 3-km-wide late-Pleistocene caldera. The summit consists of a cluster of late-Pleistocene to Holocene lava domes that were associated with thick block-lava flows on the northern and eastern flanks and extensive pyroclastic-flow deposits. The summit contains a funnel-shaped crater 200–300 m deep.[1] This crater is quite recent and was not present in December 1926. <"El Grafico" 19 February 1927 no. 819 page 714 first column at the bottom>

Holocene activity has included explosive eruptions ranging in size from moderate to plinian. The last major eruption took place about 3600 years ago. Lava dome growth has produced block-and-ash flows that traveled primarily to the NE and SE. Minor explosive eruptions have been recorded from Tolima in the 19th and 20th centuries.[1]

Gallery[edit]

See also[edit]

References[edit]

  1. ^ a b c d e "Nevado del Tolima". Global Volcanism Program. Smithsonian Institution. Retrieved 2007-01-19. 
  2. ^ Plancha 225, 1998
  3. ^ González, 2001

Bibliography[edit]