Why? What's the difference between this and any other volcano? (Dictionary didn't help)
I don’t know if pyroclastic is the most descriptive of Redoubt, it will create a huge lahar or steam hot mud avalanche, it is a strato volcano, over 10,000 feet high, it can erupt cataclysmic like Krakatoa or Mt St Helens.
Another thread here:
http://www.freerepublic.com/focus/news/2212451/posts?page=44
This volcano's eruptions are the direct result of 8 years of the Bush administration's failed polices...and global warming!!!
Mt Pinatubo was a pyroclastic eruption as was Mt St Helens.
Shield volcanoes have a low viscosity magma, (think Hawaii), volcanoes which have composite cones, of layered pyroclastic debris and lava tend to have more viscous lava, and can erupt explosively (Mt. St. Helens).
Pyroclastic, if I remember correctly, is a volcano that blows up, not just spewing lava but actually exploding. The pyroclastic flow them would be exploded rock, pumice and rock ash that settles over everything. I believe krakatoa(spelling?) and Mt. St. Helens produced Pyroclastic flow.