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Country: | Argentina | |
| Subregion Name: | Argentina | ||
| Volcano Number: | 1507-072 | ||
| Volcano Type: | Stratovolcanoes | ||
| Volcano Status: | Historical | ||
| Last Known Eruption: | 1822 | ||
| Summit Elevation: | 3978 m | 13,051 feet | |
| Latitude: | 37.142°S | 37°8'30"S | |
| Longitude: | 70.03°W | 70°2'0"W | |
| Tromen is a 3978-m-high Argentinian stratovolcano that lies at the northern end of an elongated volcanic massif. The summit of Tromen is cut by two overlapping 3.5-km-wide calderas. The Pleistocene Volcán Cerro Negro del Tromen, with a 5-km-wide caldera, lies immediately north of Tromen, and lava flows from Tromen have partially overtopped the northern caldera rim. At the SSW end of this N-S-trending chain is Cerro Tilhue, of Pleistocene-Holocene age. Post-caldera vents at Tromen were constructed inside both calderas and on the flanks of the NE-most caldera. The youngest lava flows at Tromen originated from flank vents and descended the north and NE sides of the andesitic-to-rhyolitic volcanic complex. Holocene vents are also located in the Cerro Michico area on the lower NE flank. Historical eruptions of Tromen were reported in the mid-18th century and in 1822. Von Wolff (1929) attributed purported eruptions of Pomahuida in 1820, 1823, 1827, 1828 as being from Tromen, but these are not confirmed. | |||
