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Small is better! IMG00019.jpg |
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Maps of some small subcrustal chambers. These are the simplest forms we find. |
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A shallow tube, showing the thin roof. 3H-64, Mt Napier. 3H-64.Arch.jpg |
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The small chamber, with lava drips, of Turtle Cave, Byaduk. IMG00139.jpg |
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Part of the upper-level crawls above Fern Cave. IMG00148.jpg |
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A set of slightly more complex subcrustal caves. These have multiple chambers, and they have formed as a set of three, each in its own separate lava flow. |
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View of the entrances (numbered) to the three separate levels of caves. The cliff is the wall of a collapse into a deeper major feeder tube. |
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Chamber in 3H-74. Note sags and bulges in ceiling. C000903a.jpg |
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Small chamber in 3H-74, with pahoehoe lava floor and lava drips on ceiling. C000912a.jpg |
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A typical small low chamber in a subcrustal cave. 3H-106. C000912a.jpg |
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A small feeder tube at the start of 3H-53, Mt. Eccles IMG00016.jpg |
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Another small cylindrical tube C981010.jpg |
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Not all tubes drain at the end of the eruption! A completly lava-filled tube is exposed by breakdown at the edge of a lava channel at Mt Eccles. IMG00018.jpg |