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The emplacement of pahoehoe toes: field observations and comparison to laboratory simulations

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Abstract

We observed active pahoehoe lobes erupted on Kilauea during May-June 1996, and found a range of emplacement styles associated with variations in local effusion rate, flow velocity, and strain rate. These emplacement styles were documented and quantified for comparison with earlier laboratory experiments.

At the lowest effusion rates, velocities, and strain rates, smooth-surfaced lobes were emplaced via swelling, where new crust formed along an incandescent lip at the front of the lobe and the rest of the lobe was covered with a dark crust. At higher effusion rates, strain rates and velocities, lobes were emplaced through tearing or cracking. Tearing was characterized by ripping of the ductile crust near the initial breakout point, and most of the lobe surface was incandescent during its emplacement. This mechanism was observed to generate both smooth-surfaced lobes, and, when the lava encountered an obstacle, folded lobes. Cracking lobes were similar to those emplaced via tearing, but involved breaking of a thicker, brittle crust at the initial breakout of the lobe and therefore required somewhat higher flow rates than did tearing. Cracking lobes typically formed ropy folds in the center of the lobe, and smooth margins. At the highest effusion rates, strain rates, and flow velocities, the lava formed open channels with distinct levees.

The final lobe morphologies were compared to results from laboratory simulations, which were designed to infer effusion rate from final flow morphology, to quantitatively test the laboratory results on the scale of individual natural pahoehoe lobes. There is general agreement between results from laboratory simulations and natural lavas on the scale of individual pahoehoe lobes, but there are disparities between laboratory flows and lava flows on the scale of an entire pahoehoe lava flow field.

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References

  • Byrnes JM, DA Crown (2001) Relationships between pahoehoe surface units, topography, and lava tubes at Mauna Ulu, Kilauea Volcano, Hawaii. J Geophys Res 106:2139–2151

    Article  Google Scholar 

  • Cas RAF, Wright JV, (1987) Volcanic Successions: Modern and Ancient, Allen & Unwin, London, 528 pp

    Google Scholar 

  • Crisp J, Cashman KV, Bonini JA, Hougen SB, Pieri DC (1995) Crystallization history of the 1984 Mauna Loa lava flow. J Geophys Res 99:7177–7198

    Article  Google Scholar 

  • Crown DA, Baloga SM (1999) Pahoehoe toe dimensions, morphology, and branching relationships at Mauna Ulu, Kilauea Volcano, Hawaii. Bull Volcanol 61:288–305

    Article  Google Scholar 

  • Dutton CE (1884) Hawaiian volcanoes, US Geol Surv, 4th Ann Rept, p 75–219

  • Einarsson T 1949 The eruption of Hekla 1947–1948: IV, 3 The flowing lava Studies of its main physical and chemical properties Soc Scientarium Islandica, Reykjavik, 70 pp

  • Fink JH, Fletcher RC (1978) Ropy pahoehoe: Surface folding of a viscous fluid. J Volcanol Geotherm Res 4:141–170

    Google Scholar 

  • Fink JH, Griffiths RW (1990) Radial spreading of viscous-gravity currents with solidifying crust. J Fluid Mech 221:485–509

    Google Scholar 

  • Fink JH, RW Griffiths (1992) A laboratory analog study of the surface morphology of lava flows extruded from point and line sources. J Volcanol Geotherm Res 54:19–32

    Google Scholar 

  • Fink JH, JR Zimbelman (1986) Rheology of the 1983 Royal Gardens basalt flows, Kilauea Volcano, Hawaii. Bull Volcanol 48:87–96

    Google Scholar 

  • Fornari DJ, Embley RW (1995) Tectonic and volcanic controls on hydrothermal processes at the mid-ocean ridge: An overview based on near-bottom and submersible studies in Physical, Chemical, Biological, and Geological Interactions within Seafloor Hydrothermal Systems. In: Humphris S, Zierenberg R, Mullineaux L, Thomson R (eds) Amer Geophys Union Monograph 91:1–46

  • Gregg TKP, Fink JH (1995) Quantification of submarine lava-flow morphology through analog experiments. Geology 23:73–76

    Article  Google Scholar 

  • Gregg TKP, Fink JH (1996) Quantification of extraterrestrial lava flow effusion rates through laboratory simulations. J Geophys Res 101 16,891-16,900

  • Gregg TKP, Fink JH (2000) A laboratory investigation into the effects of slope on lava flow morphology. J Volcanol Geotherm Res 96:145–159

    Google Scholar 

  • Gregg TKP (1995) Quantification of lava flow morphologies through analog experiments. PhD Thesis, Arizona State University, 112 pp

  • Gregg TKP, Fornari DJ, Kesztheyli LP (1997) Quantifying mid-ocean ridge eruption dynamics: Temporal and spatial variations in submarine lava flow emplacement processes. Geol Soc Amer Abstracts with Programs 29 A-138

  • Gregg TKP, Smith DK (2003) Volcanic investigations of the Puna Ridge, Hawaii: Relations of lava flow morphologies and underlying slopes J Volcanol Geotherm Res (in press)

  • Griffiths RW, Fink JH (1992a) Solidification and morphology of submarine lavas: A dependence on extrusion rate. J Geophys Res 97:19,729–19,737

    Google Scholar 

  • Griffiths RW, Fink JH (1992b) The morphology of lava flows in planetary environments: Predictions from analog experiments. J Geophys Res 97:19,739–19,748

    Google Scholar 

  • Heliker C, Wright TL (1991) The Pu’u O’o-Kupaianaha eruption of Kilauea. Eos Trans Amer Geophys Union 72:521

    Google Scholar 

  • Heliker CC, Mangan MT, Mattox TN, Kauahikaua JP (1998) The Pu’u ‘O’o Kupaianaha eruption of Kilauea, November 1991-February 1994: Field data and flow maps, U S Geological Survey, OF 98–0103, pp 10

  • Heslop SE, Wilson L, Pinkerton H, Head JW (1981) Dynamics of a confined lava flow on Kilauea Volcano, Hawaii. Bull Volcanol 51:415–432

    Google Scholar 

  • Hon K, Kauahikaua J, Denlinger R, MacKay K (1994) Emplacement and inflation of pahoehoe sheet flows: Observations and measurements of active lava flows on Kilauea Volcano, Hawaii, Geol Soc Amer Bull 106:351–370

  • Jurado-Chichay Z, Rowland SK (1995) Channel overflows of the Pohue Bay flow, Mauna Loa, Hawaii: Examples of the contrast between surface and interior lava. Bull Volcanol 57:117–126

    Article  Google Scholar 

  • Kauahikaua J P, Cashman K V, Mattox TN, Heliker CC, Hon KA, Mangan MT, Thornber CR (1998) Observations on basaltic lava streams in tubes from Kilauea Volcanic, Island of Hawaii. J Geophys Res103:27,303–27,323

    Google Scholar 

  • Kesztheyli LP (1994) Calculated effect of vesicles on the thermal properties of cooling basaltic lava flows. J Volcanol Geotherm Res 63:257–266

    Google Scholar 

  • Keszthelyi L (1996) Measurements of the cooling of pahoehoe lava flows. Eos Trans AGU 77: F807 (abstract)

    Google Scholar 

  • Kesztheyli LP, Delinger R (1996) The initial cooling of pahoehoe flow lobes. Bull Volcanol 58:5–23

    Article  Google Scholar 

  • Keszthelyi L, Self S (1998) Some physical requirements for the emplacement of long basaltic lava flows. J Geophys Res 103:27,447–27,464

    Article  Google Scholar 

  • Keszthelyi LP, Self S, Thordarson T (1999) Application of recent studies on the emplacement of basaltic lava flows to the Deccan Traps. In: Subbarao KV (ed) Deccan volcanic province, Memoir—Geological Society of India, 43, Part 1, pp 485–520

  • Macdonald GA (1953) Pahoehoe, aa, and block lava Am J Sci 251:169–191

    Google Scholar 

  • Manga M (1996) Waves of bubbles in basaltic magmas and lavas. J Geophys Res 101:17,457–17,465

    Article  Google Scholar 

  • Mattox TN, Heliker C, Kauahikaua J, Hon K (1993) Development of the 1990 Kalapana flow field, Kilauea Volcano, Hawaii. Bull Volcanol 55:407–413

    Google Scholar 

  • Moore HJ (1987) Preliminary estimates of the rheological properties of 1984 Mauna Loa lava. In: Decker RW, Wright TL, Stauffer PH (eds) Volcanism in Hawaii. US Geol Survey Prof Paper 1350:1569–1587

    Google Scholar 

  • Peterson DW, Swanson DA (1974) Observed formation of lava tubes during 1970–71 at Kilauea Volcano, Hawaii. Stud Speleol 2:209–223

    Google Scholar 

  • Pinkerton H, Stevenson RJ (1992) Methods of determining the rheological properties of magmas at sub-liquidus temperatures. J Volcanol Geotherm Res 53:47–66

    Google Scholar 

  • Pinkerton H, Sparks RSJ (1978) Field measurements of the rheology of lava. Nature 276:383–385

    Google Scholar 

  • Rowland SK, Walker GPL (1987) Toothpaste lava; characteristics and origin of a lava structural type transitional between pahoehoe and aa. Bull Volcanol 49: 631–641

    Google Scholar 

  • Ryan MP, Sammis CG (1981) The glass transition in basalt. J Geophys Res 86:9519–9535

    CAS  Google Scholar 

  • Sakimoto SEH, Gregg TKP (2001), Channeled flow: Analytic solutions, laboratory experiments, and applications to lava flows. J Geophys Res 106:8629

    Google Scholar 

  • Self S, Thordarson T, Keszthelyi LP (1997) Emplacement of continental flood basalt lava flows. In: JJ Mahoney, Coffin MF (eds) Large igneous provinces: Continental, oceanic, and planetary flood volcanism. Geophysical Monograph 100:381–410

    CAS  Google Scholar 

  • Shaw HR, Wright TL, Peck DL, Okamura R (1968) The viscosity of basaltic magma: An analysis of field measurements in Makaopuhi lava lake. Hawaii Am J Sci 226:225–264

    Google Scholar 

  • Shaw HR (1972) Viscosities of magmatic silicate liquids: An empirical method of prediction. Am J Sci 272:870–893

    CAS  Google Scholar 

  • Soule A, Cashman K (2004) The mechanical properties of solidified polyethylene glycol 600, an analog for lava crust. J Volcanol Geotherm Res 129:139–153

    Article  CAS  Google Scholar 

  • Stasuik MV, Jaupart C, Sparks RSJ (1993) Influence of cooling on lava -flow dynamics. Geology 21:335–338

    Article  Google Scholar 

  • Swanson DA (1973) Pahoehoe flows from the 1969–1971 Mauna Ulu eruption, Kilauea Volcano, Hawaii. Geol Soc Am Bull 84:615–626

    Google Scholar 

  • Wadge G 1977 The storage and release of magma on Mt Etna J Volcanol Geotherm Res 2:361–384

    Google Scholar 

  • Wadge G (1981) The variation of magma discharge during basaltic eruptions. J Volcanol Geotherm Res 11:139–168

    Google Scholar 

  • Walker GPL (1972) Compound and simple lava flows and flood basalts, International Symposium on Deccan Trap and Other Flood Eruptions, Proceedings, Part I, Bull Volcanol 35:579–590

  • Walker George PL (1991) Structure, and origin by injection of lava under surface crust, of tumuli, “lava rises”, “lava-rise pits”, and “lava-inflation clefts” in Hawaii. Bull Volcanol 53:546–558

    Google Scholar 

  • Wentworth CK, Macdonald GA (1953) Structures and forms of basaltic rocks in Hawaii. US Geol Surv Bull 994, 98 pp

Download references

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Correspondence to Tracy K. P. Gregg.

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Editorial responsibility: A. Woods

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Gregg, T.K.P., Keszthelyi, L.P. The emplacement of pahoehoe toes: field observations and comparison to laboratory simulations. Bull Volcanol 66, 381–391 (2004). https://doi.org/10.1007/s00445-003-0319-5

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