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ASH LAYER [1 record]

Record 1 2010-07-09

English

Subject field(s)
  • Vulcanology and Seismology
DEF

A rock composed of fine volcanic ash.

OBS

ash layer: term taken from the Decade of North American Geology, Volume 1, Chapter 6.

Key term(s)
  • ash-stone
  • ash stone

French

Domaine(s)
  • Volcanologie et sismologie
DEF

Dépôt stratifié de cendres volcaniques.

CONT

Ténues comme de la farine, les cendres moulent [...] les objets qu'elles recouvrent. À la longue, elles se transforment en roche tendre mais compacte [...] c'est une cinérite.

CONT

[...] les cendres [...] donnent des cinérites, formations meubles déposées par le vent, et qui peuvent être remaniées ensuite, soit par l'eau (hydrocinérites), soit par des coulées boueuses (ludocinérites).

Spanish

Campo(s) temático(s)
  • Vulcanología y sismología
DEF

Toba volcánica, a veces esquistosa, de grano muy fino; es una roca que resulta de la consolidación de cenizas volcánicas.

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