The saturation behaviour of pumice and some sedimentological implications

Manville, V.; White, James D. L.; Houghton, B. F.; Wilson, C. J. N.

doi:10.1016/s0037-0738(98)00057-8

Cited by 77 publications

(74 citation statements)

References 26 publications

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“…The mechanisms of transport for subaqueous volcaniclastic density currents are poorly understood in comparison to their siliciclastic homologues (Manville et al, 1998;White, 2000;Manville et al, 2002;Freundt, 2003;Manville and Wilson, 2004;Allen and Freundt, 2006;Talling et al, 2012), as they commonly contain coarse clasts of varying density (pumice or scoria), which are much less dense than conventional dense (i.e. non to poorly-vesicular) clasts.…”

Section: Of 46mentioning

confidence: 99%

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Grain-size distribution of volcaniclastic rocks 2: Characterizing grain size and hydraulic sorting

Jutzeler

McPhie

Allen

et al. 2015

Journal of Volcanology and Geothermal Research

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Proussevitch, A.A.. 2015 Grain-size distribution of volcaniclastic rocks 2: Characterizing grain size and hydraulic sorting. Journal of Volcanology and Geothermal Research. 10.1016/j.jvolgeores.2015.05.019 (In Press) Contact NOC NORA team at publications@noc.soton.ac.ukThe NERC and NOC trademarks and logos ('the Trademarks') are registered trademarks of NERC in the UK and other countries, and may not be used without the prior written consent of the Trademark owner. This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. ÔØ Å ÒÙ× Ö ÔØ A C C E P T E D M A N U S C R I P T ACCEPTED MANUSCRIPT Highlights:Functional stereology is efficient to interpret sedimentation mechanisms Simple hydraulic sorting ratios allow inference on styles of deposition Transport and deposition mechanisms can be evaluated from pumiceous rocksModes are more adequate than median to characterize sediment grain size Keywords:Stereology; Image analysis; Hydraulic sorting; Hydraulic equivalence, Grain size distribution; Volcaniclastic rock; Clastic rock; Ohanapecosh; Dogashima; Manukau; Sierra La Primavera. sorting ratios can be applied to any type of clastic rocks, and indifferently on consolidated and unconsolidated samples. A C C E P T E D M A N U S C R I P T ACCEPTED MANUSCRIPT

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Section: Of 46mentioning

confidence: 99%

“…This minimum grain size is compatible within most ranges of grain size populations studied here. The bulk density of pumice clasts depends on the volume, type, and density of the fluid that fills the vesicles (Manville et al, 1998;White et al, 2001;Manville et al, 2002).…”

Section: Of 46mentioning

confidence: 99%

Grain-size distribution of volcaniclastic rocks 2: Characterizing grain size and hydraulic sorting

Jutzeler

McPhie

Allen

et al. 2015

Journal of Volcanology and Geothermal Research

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“…During this time, the fragments follow ocean currents, which suggests that tracking their progress might yield information on the speed and direction of these currents (Bryan et al 2004). The sediments formed once pumice fragments sink also have interesting features that have been noted by sedimentologists (Manville et al 1998). In these and other applications, it is important to understand the time taken for the pumice to become sufficiently waterlogged that it sinks.…”

Section: Introductionmentioning

confidence: 97%

The waterlogging of floating objects

Vella

Huppert

2007

J. Fluid Mech.

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We consider the dynamical processes by which a dense, porous object floating in a body of liquid becomes waterlogged and sinks. We first generalize the classic model of capillary rise in a porous medium to present an analytically tractable model of the process, which is valid for objects that are very shallow compared to their horizontal extent. We find an analytical expression for the time taken for the object to sink under this approximation. We use a series of boundary integral simulations to show that decreasing the horizontal extent of the object decreases the time taken to sink. We find that the results of these numerical simulations are in good quantitative agreement with a series of laboratory experiments. Finally, we discuss the implications of our work for pumice fragments, often found floating in open water after a volcanic eruption, occasionally even supporting plant, animal and human remains.

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“…The 1883 Krakatau and YTT pumice have similar dry density (0.326; 0.385), specific gravity (2.341; 2.390), porosity (87.7 %; 86.1%) and degree of saturation required for sinking (80 %; 78.6 %). It has been proposed that large pieces of pumice absorb proportionally less water than small (Whitham and Sparks, 1986), and that the time required for pumice to saturate is proportional to the square of its radius (Manville et al, 1998). The floating behavior of pumice was studied following the methodology of Whitham and Sparks (1986) to find the water content of pumice as a function of time.…”

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confidence: 99%

Drift pumice in the Central Indian Ocean Basin: Geochemical evidence

Pattan

Mudholkar

Sankar

et al. 2008

Deep Sea Research Part I: Oceanographic Research Papers

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Abundant white to light grey coloured pumice without ferromanganese oxide coating occurs within the Quaternary sediments of the Central Indian Ocean Basin. Two distinct groups of pumice are identified from their geochemical composition, which allow one to define two different origins linked to two separate eruptions. One group of pumice is a dacitic type characterized by high Fe, Ti, Mg, Al and Ca with comparatively low contents of Si, rare earth elements (Σ REE-69 ppm), Rb, Sr, U, Th, Ba, V, Nb, Sc, Mo and Co which strongly suggest an origin from the 1883 Krakatau eruption. The other group is rhyolitic and is characterized by low contents of Fe, Ti, Mg and Ca and high Si , ΣREE content (121 ppm), Rb, Sr, U, Th, Ba, V, Nb, Mo, Co, and Sc and correlates well with the composition of the Youngest Toba Tuff (YTT) eruption of ~ 74 ka from Northern Sumatra and is being reported for the first time. Therefore, correlation of the pumice to the 1883 Krakatau and YTT eruptions indicates that the pumice drifted to the Central Indian Ocean Basin and eventually sank when it became waterlogged. However, physical properties such as density, specific gravity, porosity and degree of saturation required for sinking of pumice for both 1883 Krakatau and YTT are almost similar.

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The saturation behaviour of pumice and some sedimentological implications

Cited by 77 publications

References 26 publications

Grain-size distribution of volcaniclastic rocks 2: Characterizing grain size and hydraulic sorting

Grain-size distribution of volcaniclastic rocks 2: Characterizing grain size and hydraulic sorting

The waterlogging of floating objects

Drift pumice in the Central Indian Ocean Basin: Geochemical evidence

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