Figure 3: Lava flows advancing via inflation beneath/inside thick snow pack. | Nature Communications

Figure 3: Lava flows advancing via inflation beneath/inside thick snow pack.

From: Propagation style controls lava–snow interactions

Figure 3

(a) Front of pahoehoe lava advancing beneath the snowpack; base of the flow is ~2 m below the snow surface, leading part of the flow ~1 m below the snow surface and the leading lobe is entering lower part of observation pit. Pit is ~1 m wide. (b) Growing snow dome with steam emanating from hidden contact between melting snow and inflating subsnow pahoehoe flow; in the background ′a′a lava 4 m thick advancing over snow. Person for scale. (c) Schematic sketch showing cross-sectional view along the front of pahoehoe flow advancing through the snow.

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