Pyroclastic cone
|
When volcanic activity is more intense than that of a maar and a large amount of volcanic ejecta is erupted, this accumulates around the crater and forms a cone. Depending on the constituent materials, they are classified as whitish, felsic, porous pumice cones, mafic, porous scoria cones, and cinder cones. The majority of cinder cones are scoria cones. Source: Asakura Publishing Dictionary of Petrology Information |
|
火山活動がマールよりも激しく多量の本質放出物を噴出すると，火口の周囲にこれが堆積して円錐丘を作る．構成物質によって珪長質で多孔質な白っぽい軽石丘（pumice cone），苦鉄質で多孔質な暗色のスコリア丘（岩滓丘 : scoria cone），噴石丘（cinder cone）などが区別されている．噴石丘の大部分はスコリア丘である． 出典 朝倉書店岩石学辞典について 情報 |
<<: Pyroclastic flow - pyroclastic flow
Recommend
Agent - Dairishou
An independent merchant who normally acts as an a...
Wall clock - kakedokei
〘 noun 〙 A large clock that is hung on a pillar or...
Internal waves
Internal waves occur at discontinuities in seawat...
Kirimeen - Kirimeen
〘 noun 〙 A type of veranda made by the way the boa...
Soen
Dates of birth and death unknown. A painter-monk ...
Kyoritsu Women's University
It is a private institution. It was founded in 18...
Sitz bath - Zayoku
This is a type of hydrotherapy, in which the lowe...
Saburouemon Kawakado - Saburouemon Kawakado
… [Kawazumi Taikoki] 5 volumes, 5 books. This is ...
Pignatelli, GB (English spelling) PignatelliGB
…In the Middle Ages, knights wearing heavy armor ...
Kimigahata - Kimigahata
A mountainous area in the southeastern part of Sh...
Jade Emperor - Gyokukoujoutei
...The Jade Emperor, the supreme deity of Taoism ...
TV drama
A drama-style program broadcast on television. It...
Westernization Movement
A movement carried out in China from around 1860 ...
Malcolm, Norman
Born June 11, 1911 in Selden, Kansas. [Died] Augus...
Higashikubiki Hills
Tertiary hills in the southwest of Niigata Prefec...