Menan Buttes

sopka (bez známé erupce za posledních ~12 000 let), United States, North America Volcanic Regions

Kde

United States, North America Volcanic Regions

Typ (GVP)

Tuff cone(s)

Nadmořská výška

1 713 m

Poloha

43,773°, -111,969°

North and South Menan Buttes are the two largest of a N-S line of basaltic tuff cones formed by phreatomagmatic eruptions along the Snake River in eastern Idaho. The larger N cone is ~2 km in diameter, and 3 km from the S cone (using crater centers). They were considered to be very late Pleistocene, or more probably, early Recent (Holocene) by Hamilton and Myers (1963). Creighton (1987) cites mapping by LaPoint that indicates a middle to late Pleistocene age, as does King (in Wood and Kienle, 1990).

Text: Smithsonian Global Volcanism Program.

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