Violence in pyroclastic flow eruptions in Tephra studies.

Auteurs :
WILSON, C. J. N.
WALKER, G. P. L.
SELF, S.
SPARKS, R. S. J.
NATO Advanced Study Institute, International

Description :
Violence reflects the vigour with which a pyroclastic flow is emplaced. It is described quantitatively by the height of hills climbed by the flow (yielding flow-velocity estimates), the overall morphology of the deposit and by the proportion of the flow which forms an ignimbrite veneer deposit. Using the Taupo ignimbrite (New Zealand) as an example of an extremely violent flow, we relate violence to the eruption intensity. The AA. consider that eruption magnitude and intensity control the gross distribution of a pyroclastic flow deposit.


Type de document :
Congrès

Source :
Tephra studies as a tool in quaternary research, 1980, p. 441-448, Références bibliographiques : 30 réf.

Date :
1981

Editeur :
Pays édition : Inconnu