Volcanic ash

v • d • e Buscar "Volcanic ash" en:
Índice completo. ^ - A - B - C - D - E - F - G - H - I - J - K - L - M - N - O - P - R - S - T - U - W - V - X - Y - Z
Diccionario
	Wikipedia La enciclopedia
	Commons: en Imágenes
	Wikcionario Diccionario
	Wikilibros Libros y manuales
	Wikiquote Colección de citas
	Wikinoticias Noticias libres
	Wikisource Documentos originales
Archivo:Wikiversity-logo.svg	Wikiversity contenido académico libre
	CeraWiki Enciclopedia Cerámica

español: Ceniza volcánica

English: Volcanic ash consists of small tephra, which are bits of pulverized rock and glass created by volcanic eruptions,^[1] less than 2 millimetres (0,079 in) in diameter. There are three mechanisms of volcanic ash formation: gas release under decompression causing magmatic eruptions; thermal contraction from chilling on contact with water causing phreatomagmatic eruptions and ejection of entrained particles during steam eruptions causing phreatic eruptions^[2].

Referencias[]

↑ United States Geological Survey. Tephra: Volcanic Rock and Glass Fragments. Retrieved on 2008-01-23.
↑ Heiken, G. & Wohletz, K. 1985. Volcanic Ash. University of California Press, Berkeley.

[TEPHRA-1] United States Geological Survey. Tephra: Volcanic Rock and Glass Fragments. Retrieved on 2008-01-23.

[heiken-2] Heiken, G. & Wohletz, K. 1985. Volcanic Ash. University of California Press, Berkeley.

[1]

[2]