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Earth, Planets and Space
Fig. 7 | Earth, Planets and Space

Fig. 7

From: Lahar characteristics as a function of triggering mechanism at a seasonally snow-clad volcano: contrasting lahars following the 2014 phreatic eruption of Ontake Volcano, Japan

Fig. 7

Grainsize characteristics of pre-eruptive, 2014 eruptive and post-eruptive lahar deposits in the Akagawa and Nigorigawa Rivers and around Ontake Volcano. a Sorting and mean grainsize of samples. b Sorting and c mean grainsize versus distance from the Jigokudani vents for samples of October 2014 rain-triggered and April 2015 ROS-triggered lahar deposits. Note that the samples from debris flow deposits represent grainsize less than cobble because of limitation of sampling of larger clasts at the field. d Percentage of clay in clay + silt + sand fractions in the October lahar deposits

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