Page 333 - Caldera Volcanism Analysis, Modelling and Response

308 Valerio Acocella

end-members may correspond to a specific stage. While such a continuum is
defined by precise structural features and controlled by progressive subsidence,
specific geometries result from secondary factors (roof aspect ratio, collapse
symmetry, pre-existing faults), not diagnostic of the collapse stage.

ACKNOWLEDGEMENTS

The author thanks A. Folch, R. Funiciello, A. Gudmundsson, J. Martı `, H. Schmincke and
T. Walter for stimulating discussions. M. Branney, J. Gottsmann, W. Mueller, S. Self, K. Spinks and
T. Yoshida helped with the compilation of data on natural calderas. K. Spinks and B. Kennedy
provided enthusiastic and constructive comments, which improved the paper. K. Spinks also improved
the English. This study was inspired by a solicited talk at the ‘‘Caldera volcanism: Analysis,
modelling and response’’ workshop, held in Tenerife (Spain), October 2005 and organised by J. Martı ´
and J. Gottsmann.

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