Tumble 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)

Pyroclastic cone(s)

Nadmořská výška

2 191 m

Poloha

40,680°, -121,550°

A line of cinder cones along a NNW-SSE fissure produced a series of lava flows. Bear Wallow Butte, the source of unvegetated lava flows on its eastern and western flanks, lies at the southern end of the chain. At the northern end is Eiler Butte, constructed on a topographic high, which has also produced blocky lava flows. The most prominent feature is Devils Rock Garden, a thick, blocky andesitic lava flow complex that erupted from Tumble Butte south; it is the youngest of the Tumble Buttes flows and was considered by Miller (1989) to be Holocene. The Devils Rock Garden flow blocks glacial outwash channels and overlies glacial gravels, and thus is younger than about 15,000 years, but was mapped as latest Pleistocene by Clynne and Muffler (2010) and estimated to have been erupted between 10,000-15,000 years ago.

Text: Smithsonian Global Volcanism Program.

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