Density and size segregation in deposits of pyroclastic flow

Geophysical Research Letters

Volumn 31, Issue 15, 2004, Pages

  Mitani, Noriko K ^a   Matuttis, Hans Georg ^b   Kadono, Toshihiko ^c  

^a UNIVERSITY OF TOKYO   (Japan)

^b UNIVERSITY OF ELECTRO COMMUNICATIONS   (Japan)

^c JAPAN AGENCY FOR MARINE EARTH SCIENCE AND TECHNOLOGY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

COMPUTER SIMULATION; DEPOSITS; FLUID DYNAMICS; GRAVITATION; IMPURITIES; SURFACE ROUGHNESS; VISCOSITY;

GRANULAR FLOWS; PYROCLASTIC FLOW; SIZE SEGREGATION;

GEOPHYSICS;

FLOW MODELING; FLOW OVER SURFACE; PYROCLASTIC DEPOSIT; PYROCLASTIC FLOW; VISCOSITY; VOLCANIC ROCK;

EID: 7044265025     PISSN: 00948276     EISSN: None     Source Type: Journal    
DOI: 10.1029/2004GL020117     Document Type: Article

References (28)

1. Albert, R., M. A. Pfeifer, A.-L. Barabasi, and P. Schiffer (1999), Slow drag in a granular medium, Phys. Rev. Lett., 82, 205-209.
2. Bagnold, R. A. (1954), Experiments on a gravity-free dispersion of large solid spheres in a Newtonian fluid under shear, Proc. R. Soc. London, Ser. A, 225, 49-63.
3. Calder, E. S., R. S. J. Sparks, and M. C. Gardeweg (2000), Erosion, transport and segregation of pumice and lithic clasts in pyroclastic flows inferred from ignimbrite at Lascar Volcano, Chile, J. Volcanol. Geotherm. Res., 104, 201-235.
4. Campbell, C. S. (1989), Self-lubrication for long runout landslides, J. Geol., 97, 653-665.
5. Campbell, C. S., and C. E. Brennen (1985a), Chute flows of granular material: Some computer simulations, J. Appl. Mech., 52, 172-178.
6. Campbell, C. S., and C. E. Brennen (1985b), Computer simulation of granular shear flows, J. Fluid. Mech., 151, 167-188.
7. Cleary, P. W., and C. S. Campbell (1993), Self-lubrication for long runout landslides: Examination by computer simulation, J. Geophys. Res., 98, 21,911-21,924.
8. Cundall, P. A., and O. D. L. Strack (1979), A discrete numerical model for granular assemblies, Geotechnique, 29, 47-65.
9. Druitt, T. H. (1995), Settling behaviour of concentrated dispersions and some volcanological applications, J. Volcanol. Geotherm. Res., 65, 27-39.
10. Druitt, T. H. (1998), Pyroclastic density currents, in The Physics of Explosive Eruptions, edited by J. S. Gilbert and R. S. J. Sparks, Spec. Publ. Geol. Soc. London, 145, 51-182.
11. Druitt, T. H., G. Bruni, P. Lettieri, and J. G. Yates (2004), The fluidization behaviour of ignimbrite at high temperature and with mechanical agitation, Geophys. Res. Lett., 31(2), L02604, doi:10.1029/2003GL018593.
12. Hirshfield, D., and D. C. Rapaport (1997), Molecular dynamics studies of grain segregation in sheared flow, Phys. Rev. E, 56, 2012-2018.
13. Huerta, D. A., and J. C. Ruiz-Suarez (2004), Vibration-induced granular segregation: A phenomenon driven by three mechanisms, Phys. Rev. Lett., 92, doi:10.1103/PhysLevLett.92.114301.
14. Matuttis, H.-G. (1998), Simulation of the pressure distribution under a two-dimensional heap of polygonal particles, Granular Matter, 1, 83-91.
15. Palladino, D. M., and G. A. Valentine (1995), Coarse-tail vertical and lateral grading in pyroclastic flow deposits of the Latera Volcanic Complex (Vulsini, central Italy): Origin and implications for flow dynamics, J. Volcanol. Geotherm. Res., 69, 343-364.
16. Roche, O., M. Gilbertson, J. C. Phillips, and R. S. J. Sparks (2002), Experiments on deaerating granular flows and implications for pyroclastic flow mobility, Geophys. Res. Lett., 29(16), 1792, doi:10.1029/2002GL014819.
17. Savage, S. B., and C. K. K. Lun (1988), Particle size segregation in inclined chute flow of dry cohesionless granular solids, J. Fluid Mech., 189, 311-335.
18. Shishodia, N., and C. R. Wassgren (2001), Particle segregation in vibro-fluidised beds due to buoyant forces, Phys. Rev. Lett., 87, doi:10.1103/ PhysLevLett.87.084302.
19. Sparks, R. S. J. (1976), Grain size variations in ignimbrites and implications for the transport of pyroclastic flows, Sedimentology, 23, 147-188.
20. Sparks, R. S. J. (1978), Gas release rates from pyroclastic flows: An assessment of the role of fluidisation in their emplacement, Bull. Volcanol., 41, 1-9.
21. Sparks, R. S. J., S. Self, and G. P. L. Walker (1973), Products of ignimbrite eruptions, Geology, 1, 115-118.
22. Straub, S. (1997), Predictability of long runout landslide motion: Implications from granular flow mechanics, Geol. Rundsch., 86, 415-425.
23. Thomas, N. (2000), Reverse and intermediate segregation of large beads in dry granular media, Phys. Rev. E, 62, 961-974.
24. Trujillo, L., and H. J. Herrmann (2003), Hydrodynamic model for particle size segregation in granular media, Physica A, 330, 519, doi:10.1016/ S0378-4371(03)00621-6.
25. Wilson, C. J. N. (1980), The role of fluidization in the emplacement of pyroclastic flows: An experimental approach, J. Volcanol. Geotherm. Res., 8, 231-249.
26. Wilson, C. J. N. (1984), The role of fluidization in the emplacement of pyroclastic flows, 2: An experimental results and their interpretation, J. Volcanol. Geotherm. Res., 20, 55-84.
27. Wilson, C. J. N. (1985), The Taupo eruption, New Zealand II. The Taupo ignimbrite, Philos. Trans. R. Soc. London, Ser. A, 314, 229-310.
28. Zik, O., J. Stavans, and Y. Rabin (1992), Mobility of a sphere in vibrated granular media, Europhys. Lett., 17, 315-319.