Santo Tomas-Zunil

sopka (bez známé erupce za posledních ~12 000 let), Guatemala, Middle America-Caribbean Volcanic Regions

Kde

Guatemala, Middle America-Caribbean Volcanic Regions

Typ (GVP)

Stratovolcano(es)

Nadmořská výška

3 542 m

Poloha

14,710°, -91,479°

Volcán Santo Tomás (also known as Volcán Pecul) is a large eroded stratovolcano across a valley SE of Santa María volcano. The summit is capped by late-Quaternary andesitic tephra. A winding ridge connects it to Volcán de Zunil, 4.5 km NE, a stratovolcano that forms the topographic high point of the Santo Tomás-Zunil complex. Solfataras and thermal springs are located on the ridge's W side. Zunil is along the SW rim of the 4-km-wide, 600-m-deep Tzanjuyub caldera, which is breached to the S by the Río Masa. Several dacitic-rhyolitic lava domes are located on the caldera's N flank and the NW flank of Volcán de Zunil. The youngest dome, Cerro Zunil, was last active about 84,000 years ago (K-Ar dating). No Holocene eruptions are known from this complex, although it was included in the Catalog of Active Volcanoes of the World (Mooser et al., 1958) based on its geothermal activity.

Text: Smithsonian Global Volcanism Program.

Údaje o sopce: Smithsonian Global Volcanism Program. Další sopky a průduchy.