Rapid injection of particles and gas into non-fluidized granular material, and some volcanological implications

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• 作者：Pierre-Simon Ross (1) (3)
  James D. L. White (1)
  Bernd Zimanowski (2)
  Ralf Büttner (2)
  
• 关键词：Debris jets ; Diatremes ; Phreatomagmatism ; Experimental volcanology ; Gas ; particle flow ; Explosions ; Granular material
• 刊名：Bulletin of Volcanology
• 出版年：2008
• 出版时间：October 2008
• 年：2008
• 卷：70
• 期：10
• 页码：1151-1168
• 全文大小：2014KB
• 参考文献：1. Büttner R, Zimanowski B (1998) Physics of thermohydraulic explosions. Phys Rev E 57:5726-729 CrossRef
  2. Büttner R, R?der H, Zimanowski B (1997) Electrical effects generated by experimental volcanic explosions. Appl Phys Lett 70:1903-905 CrossRef
  3. Büttner R, Zimanowski B, R?der H (2000) Short-time electrical effects during volcanic eruption: experiments and field measurements. J Geophys Res 105:2819-828 CrossRef
  4. Büttner R, Dellino P, La Volpe L, Lorenz V, Zimanowski B (2002) Thermohydraulic explosions in phreatomagmatic eruptions as evidenced by the comparison between pyroclasts and products from Molten Fuel Coolant Interaction experiments. J Geophys Res 107:2277 CrossRef
  5. Carlson RH, Jones GD (1965) Distribution of ejecta from cratering explosions in soils. J Geophys Res 70:1897-910 CrossRef
  6. Cates ME, Wittmer JP, Bouchaud J-P, Claudin P (1998) Jamming, force chains, and fragile matter. Phys Rev Lett 81(9):1841-844, doi:10.1103/PhysRevLett.81.1841 CrossRef
  7. DOE (1962) Project Sedan—Part 3 [historical test film 0800030]. U.S. Department of Energy (http://www.nv.doe.gov/library/films/film.aspx?ID=88)
  8. DOE (2000) United States Nuclear Tests, July 1945 through September 1992. Report DOE/NV-209-REV 15, U.S. Department of Energy, Nevada Operations Office, pp 1-62 (http://www.nv.doe.gov/library/publications/historical/DOENV_209_REV15.pdf)
  9. Fisher RV, Schmincke H-U (1984) Pyroclastic rocks. Springer, Berlin, pp 1-72
  10. Goto A, Taniguchi H, Yoshida M, Ohba T, Oshima H (2001) Effects of explosion energy and depth to the formation of blast wave and crater: field explosion experiment for the understanding of volcanic explosion. Geophys Res Lett 28:4287-290 CrossRef
  11. Hearn BC (1968) Diatremes with kimberlitic affinities in north–central Montana. Science 159:622-25 CrossRef
  12. Johnson SW, Smith JA, Franklin LK, Moraski LK, Teal DJ (1969) Gravity and atmospheric pressure effects on crater formation in sand. J Geophys Res 74:4838-850 CrossRef
  13. Kokelaar BP (1983) The mechanism of Surtseyan volcanism. J Geol Soc [London] 140:939-44 CrossRef
  14. Lorenz V (1986) On the growth of maars and diatremes and its relevance to the formation of tuff rings. Bull Volcanol 48:265-74 CrossRef
  15. McClintock MK, White JDL (2006) Large-volume phreatomagmatic vent complex at Coombs Hills, Antarctica records wet, explosive initiation of flood basalt volcanism in the Ferrar LIP. Bull Volcanol 68:215-39 CrossRef
  16. Müller G, Veyl G (1957) The birth of Nilahue, a new maar type volcano at Rininahue, Chile. 20th International Geological Congress, Mexico, pp 375-96
  17. Nichols RJ, Sparks RSJ, Wilson CJN (1994) Experimental studies of the fluidization of layered sediments and the formation of fluid escape structures. Sedimentology 41:233-53 CrossRef
  18. Ohba T, Taniguchi H, Oshima H, Yoshida M, Goto A (2002) Effect of explosion energy and depth on the nature of explosion cloud: A field experimental study. J Volcanol Geotherm Res 115:33-2 CrossRef
  19. Paola C (2006) Natural and imposed similarity in experimental stratigraphy [abstract]. 17th International Sedimentological Congress, Fukuoka, Japan, Volume A, pp 96
  20. Ross P-S, White JDL (2006) Debris jets in continental phreatomagmatic volcanoes: a field study of their subterranean deposits in the Coombs Hills vent complex, Antarctica. J Volcanol Geotherm Res 149:62-4, doi:10.1016/j.jvolgeores.2005.06.007 CrossRef
  21. Self S, Kienle J, Huot J-P (1980) Ukinrek Maars, Alaska II. Deposits and formation of the 1977 craters. J Volcanol Geotherm Res 7:39-5 CrossRef
  22. Walters AL, Phillips JC, Brown RJ, Field M, Gernon T, Stripp G, Sparks RSJ (2006) The role of fluidisation in the formation of volcaniclastic kimberlite: grain size observations and experimental investigation. J Volcanol Geotherm Res 155:119-37 CrossRef
  23. White JDL (1991) Maar-diatreme phreatomagmatism at Hopi Buttes, Navajo Nation (Arizona), USA. Bull Volcanol 53:239-58 CrossRef
  24. White JDL, McClintock MK (2001) Immense vent complex marks flood-basalt eruption in a wet, failed rift: Coombs Hills, Antarctica. Geology [Boulder] 29:935-38 CrossRef
  25. Wilson CJN (1980) The role of fluidization in the emplacement of pyroclastic flows: an experimental approach. J Volcanol Geotherm Res 8:231-49 CrossRef
  26. Wohletz KH (1986) Explosive magma–water interactions: thermodynamics, explosion mechanisms, and field studies. Bull Volcanol 48:245-64 CrossRef
  27. Woolsey TS, McCallum ME, Schumm SA (1975) Modeling of diatreme emplacement by fluidization. Phys Chem Earth 9:11-4 CrossRef
  28. Zimanowski B (1998) Phreatomagmatic explosions. In: Freundt A, Rosi M (eds) From magma to tephra. Developments in volcanology 4. Elsevier, Amsterdam, pp 25-4
  29. Zimanowski B, Fr?hlich G, Lorenz V (1991) Quantitative experiments on phreatomagmatic explosions. J Volcanol Geotherm Res 48:341-58 CrossRef
  30. Zimanowski B, Büttner R, Lorenz V, H?fele H-G (1997) Fragmentation of basaltic melt in the course of explosive volcanism. J Geophys Res 102:803-14 CrossRef
  
• 作者单位：Pierre-Simon Ross (1) (3)
  James D. L. White (1)
  Bernd Zimanowski (2)
  Ralf Büttner (2)
  
  1. Department of Geology, University of Otago, P.O. Box 56, Dunedin, New Zealand
  3. INRS-ETE, 490 rue de la Couronne, Quebec, QC, Canada, G1K 9A9
  2. Physikalisch-Vulkanologisches Labor, Universit?t Würzburg, Pleicherwall 1, 97079, Würzburg, Germany
  
• ISSN：1432-0819

文摘

In diatremes and other volcanic vents, steep bodies of volcaniclastic material having differing properties (particle size distribution, proportion of lithic fragments, etc.) from those of the surrounding vent-filling volcaniclastic material are often found. It has been proposed that cylindrical or cone-shaped bodies result from the passage of “debris jets-generated after phreatomagmatic explosions or other discrete subterranean bursts. To learn more about such phenomena, we model experimentally the injection of gas-particulate dispersions through other particles. Analogue materials (glass beads or sand) and a finite amount of compressed air are used in the laboratory. The gas is made available by rapidly opening a valve—therefore the injection of gas and coloured particles into a granular host is a brief (<1?s), discrete event, comparable to what occurs in nature following subterranean explosions. The injection assumes a bubble shape while expanding and propagating upwards. In reaction, the upper part of the clastic host moves upward and outward above the ‘bubble- forming a ‘dome- The doming effect is much more pronounced for shallow injection depths (thin hosts), with dome angles reaching more than 45°. Significant surface doming is also observed for some full-scale subterranean blasts (e.g. buried nuclear explosions), so it is not an artefact of our setup. What happens next in the experiments depends on the depth of injection and the nature of the host material. With shallow injection into a permeable host (glass beads), the compressed air in the “bubble-is able to diffuse rapidly through the roof. Meanwhile the coloured beads sediment into the transient cavity, which is also closing laterally because of inward-directed granular flow of the host. Depending on the initial gas pressure in the reservoir, the two-phase flow can “erupt-or not; non-erupting injections produce cylindrical bodies of coloured beads whereas erupting runs produce flaring upward or conical deposits. Changing the particle size of the host glass beads does not have a large effect under the size range investigated (100-00 to 300-00?μm). Doubling the host thickness (injection depth) requires a doubling of the initial gas pressure to produce similar phenomena. Such injections—whether erupting or wholly subterranean—provide a compelling explanation for the origin and characteristics of multiple cross-cutting bodies that have been documented for diatreme and other vent deposits.