Explosive Volcanic Eruptions‐I The Rate of Fall of Pyroclasts

Wilson, L. and Bowell, E. L.G. (1971) Explosive Volcanic Eruptions‐I The Rate of Fall of Pyroclasts. Geophysical Journal of the Royal Astronomical Society, 22 (4). pp. 377-383. ISSN 0016-8009

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Abstract

Analysis of an explosive volcanic eruption requires a knowledge of the rate of fall of ejected debris. Terminal velocities have been determined experimentally for pumice of various grain‐sizes and also for lithic fragments and sanidine crystals from two series of volcanic eruptions. Theoretical terminal velocities for cylinders and rough and smooth spheres of various grain‐sizes and densities have been computed. The results for cylinders agree very closely with the corresponding experimentally measured values. Computed terminal velocities for particles with various diameters, densities and shapes are presented graphically.

Item Type:
Journal Article
Journal or Publication Title:
Geophysical Journal of the Royal Astronomical Society
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/1900/1908
Subjects:
ID Code:
183754
Deposited By:
Deposited On:
10 Jan 2023 13:45
Refereed?:
Yes
Published?:
Published
Last Modified:
10 Jan 2023 13:45