Nevado del Tolima
|Nevado del Tolima|
Nevado del Tolima in 2017
|Elevation||5,276 m (17,310 ft) |
|Listing||Volcanoes of Colombia|
|Parent range||Central Ranges, Andes|
|Mountain type||Andesitic stratovolcano|
|Volcanic belt||North Volcanic Zone
Andean Volcanic Belt
|Last eruption||March 1943|
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. 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.
|Wikimedia Commons has media related to Nevado del Tolima.|
- González, Humberto. 2001. Geología de las planchas 206 Manizales y 225 Nevado del Ruiz - 1:100,000 - Memoria explicativa, 1–93. INGEOMINAS. Accessed 2017-06-09.
- Mosquera, Darío; Pedro Martín; Carlos Vesga, and Humberto González. 1998. Plancha 225 - Nevado del Ruiz - 1:100,000, 1. INGEOMINAS. Accessed 2017-06-06.