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AIR-FALL LAPILLI TUFF [2 records]

Record 1 2011-01-11

English

Subject field(s)
  • Petrography
  • Vulcanology and Seismology
DEF

An indurated deposit that is predominantly lapilli, with a matrix of tuff.

CONT

When the lapilli become welded together into a solid rock, the result is called lapilli tuff.

OBS

Lapilli (singular, lapillus) are small volcanic rock fragments between 2 and 64 millimeters across. Lapilli means "little stones" in Italian.

OBS

lapilli tuff: term used at Natural Resources Canada - Earth Sciences Sector.

PHR

Air-fall lapilli tuff.

French

Domaine(s)
  • Pétrographie
  • Volcanologie et sismologie
CONT

La découverte de roches constituées de cendres et de fragments volcaniques (tufs à lapilli) aux lacs d'Auteuil et Musquaro est très importante.

OBS

lapilli : (n.m.) Solide volcanique projeté (pyroclastite), de petite taille (2 à 50 mm) vacuolaire ou non.

OBS

tuf à lapilli(s) : termes en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

Spanish

Save record 1

Record 2 2009-03-19

English

Subject field(s)
  • Petrography
  • Vulcanology and Seismology
OBS

air-fall lapilli tuff : term used at Natural Resources Canada-Earth Sciences Sector.

French

Domaine(s)
  • Pétrographie
  • Volcanologie et sismologie
OBS

Les dépôts de retombées pyroclastiques se forment suite à l'éjection explosive de matériaux à partir d'un conduit. Cette éjection produit une colonne éruptive composée de cendre et de gaz qui s'élève dans l'atmosphère.

OBS

tuf à lapilli(s) de retombées : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

Spanish

Save record 2

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