Azul, Volcan

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

Kde

Nicaragua, Middle America-Caribbean Volcanic Regions

Typ (GVP)

Pyroclastic cone(s)

Nadmořská výška

203 m

Poloha

12,549°, -83,968°

Volcán Azul consists of three trachybasaltic cinder cones on the jungle-covered Atlantic coastal plain of Nicaragua that were first noted by geologists during an aerial overflight in the 1960s. The three cones, located south of the Río Curinhuás and west of Pearl Lagoon, each have well-defined, steep-walled craters about 50-60 m across. In contrast to the circular rims of the other two cones, the rim of the easternmost cone is breached to the west. The well-defined craters and unusually low vegetation in an area of heavy rainfall and rapid weathering led Williams and McBirney (1965) to estimate that the cones were probably no more than a few thousand years old. However, K-Ar dating by Janousek et al. (2010) gave a 1.51 +/- 0.20 Ma age. Other trachybasaltic to trachytic Quaternary cones along the central Nicaraguan Atlantic coastal plain are found at Pearl Lagoon and Kukra Hill.

Text: Smithsonian Global Volcanism Program.

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