Pyroclastic rock
Pyroclastic rocks or pyroclastics (derived from the Greek: πῦρ, meaning fire; and κλαστός, meaning broken) are clastic rocks composed solely or primarily of volcanic materials. Where the volcanic material has been transported and reworked through mechanical action, such as by wind or water, these rocks are termed volcaniclastic. Commonly associated with unsieved volcanic activity—such as Plinian or krakatoan eruption styles, or phreatomagmatic eruptions—pyroclastic deposits are commonly formed from airborne ash, lapilli and bombs or blocks ejected from the volcano itself, mixed in with shattered country rock.
Pyroclastic rocks may be a range of clast sizes, from the largest agglomerates, to very fine ashes and tuffs. Pyroclasts of different sizes are classified as volcanic bombs, lapilli, and volcanic ash. Ash is considered to be pyroclastic because it is a fine dust made up of volcanic rock. One of the most spectacular forms of pyroclastic deposit are the ignimbrites, deposits formed by the high-temperature gas-and-ash mix of a pyroclastic flow event.
Rise
Rise or RISE may refer to:
Music
Albums
Rise (Flobots song)
"Rise" is the second single released by the alternative hip hop group Flobots from Denver, Colorado. It was released from Flobots' album Fight with Tools.
Track listing
CD
Play.com (UK Maxi) (MP3 EP)
Music video
The Flobots filmed a music video for this song on July 6, 2008, at the Gothic theater In Denver, Colorado. The video shows a rock concert intermixed with scenes of pro-American posters and people working to make the world a better place, such as planting trees and committing random acts of kindness. The video features almost everyone in some form of American Flag bandanna, much like the cover for Flobot's album "Fight with Tools." In the video, multiple references are made to the website americawillbe.org, a pro-peace website dedicated to the visions of what people want USA to be.
Chart performance
On September 13, 2008, "Rise" charted on the Billboard Hot Modern Rock Tracks at number 36. So far, the song has peaked at number 33.
Rise (sculpture)
Rise (also unofficially known as the Balls of the Falls,Belfast Ball,Westicle and Broadway Junction Art Piece), is a concept £400,000public art spherical metal sculpture by Wolfgang Buttress. It is 37.5 metres (123 ft) high and 30 metres (98 ft) wide and was constructed in early 2011 in the centre of the Broadway roundabout, at the junction of the Westlink and M1 motorway, a main gateway to the city where (as of 2009) more than 80,000 cars on average flow past it each day.
Rise is visible for miles around the city. The area is part of a multi-million pound road improvement programme. It is the biggest public art sculpture in Belfast. Work on Rise was due to begin in August 2009 and end in October 2009, however due to delays the completion date was changed to March 2011. It was finally completed in September 2011, nearly two years behind the original schedule. When completed it became Belfast's largest public artwork.
Construction
The globe-shaped, white and silver steel sculpture is a representation of a new sun rising to celebrate a new chapter in the history of Belfast.
Podcasts:
