An Etymological Dictionary of Astronomy and Astrophysics
English-French-Persian

فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory

   Homepage   
   


A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Number of Results: 4 Search : volcanic
volcanic
  آتشفشانی   
âtašfešâni (#)

Fr.: volcanique   

Of or relating to a volcano. Characterized by volcanoes.

volcano; → -ic.

volcanic eruption
  اسدرش ِ آتشفشانی   
osdareš-e âtašfešâni

Fr.: éruption volcanique   

The explosive ejection of superheated matter from a → volcano.

volcanic; → eruption.

volcanic explosivity index (VEI)
  دیشن ِ اسکفتندگی ِ آتشفشانی   
dišan-e oskaftandegi-ye âtašfešâni

Fr.: indice d'explosivité volcanique   

A logarithmic scale, ranging from 1 to 8, used to measure the intensity of volcano eruptions. The VEI is based on several factors: the degree of fragmentation of the volcanic products released by the eruption, the amounts of sulfur-rich gases that form stratospheric aerosols, the volume of the eruptions, their duration, and the height is reached. The largest eruptions (8) produce an amount of bulk volume of ejected → tephra of ~ 1,000 km3.

volcanic; → explosivity; → index.

volcanic vent
  دودکش ِ آتشفشانی   
dudkaš-e âtašfešâni (#)

Fr.: cheminée volcanique   

vent.

volcanic; → vent.