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An amazing photo of a dome-shaped lava formation has captivated the internet nearly 50 years after it formed.
In a throwback tweet, the US Geological Survey shared a stunning look at the rare symmetrical dome fountain created in 1969 during the 5-year-long Mauna Ulu eruption at the Kilauea Volcano in Hawaii.
October - Year - Dome - Feet - Points
From October 10 to 13 of that year, the dome grew to be over 30 feet tall, at some points even climbing as high as 65ft – and, while it might just look like a giant gaseous bubble, the experts say that wasn’t the case.
Another view in which part of the dome could be sliding away revealed an interior made entirely of liquid lava.
Lava - Fountains - Photo - Gas - Bubbles
Lava fountains such as that shown in the 1969 photo are formed as gas bubbles rapidly form and expand in the molten rock emanating from isolated vents, fissures, lava lakes, or lava tubes, causing a jet of lava to spew into the air, the USGS explains.
They can grow to staggering heights of over 500 meters, though they usually remain somewhere between 10-20 meters.
Events - Reaching - M - Ft - Height
In 1969 alone, there were 12 fountaining events, with some reaching as high as 540 m (1,770 ft). These typically welled to their maximum height over the course of several hours, before collapsing again in a matter of minutes, according to...
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