[SatinDoll]

Hi Frantzie! You asked about the size of the volcano.

Well, Yellowstone is a super volcano, and the size of the caldera’s perimeter is approximately the size of the whole of Yellowstone Park. Yes, it is huge and it is dangerous.

See post #39 for a really good idea of what Yellowstone is volcanically: it is much like Hawaii, in that it is a ‘hot spot’ in the earth’s mantle with a tectonic plate sliding over it through geologic time. The geology tells the story of past eruptions.

[ETL]

Map of the Yellowstone Hot Spot Trail. Reveals the movement of the North American tectonic plate over the last approximate 16 million years.

[ETL]

Frantzie,

SatinDoll meant her post #638 for you (not me).

http://www.freerepublic.com/focus/news/2443122/posts?page=638#638