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Some common contents of a lava tube. V_Decs.gif |
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A "plum pudding" of rubble incorporated in a later lava flow. In the roof of the lowest level of Theatre Cave (3H-33). Scale is 10 cm. IMG00003.jpg |
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Ropy lava in Fern Cave, H-23 IMG00145.jpg |
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An invasive lava lobe. Upper level of Fern Cave, H-23 IMG00147.jpg |
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Small tumulus pushed up from the floor of a side passage of Harman Cave Stereo-pair. View them cross-eyed. IMG00142.jpg and IMG00141.jpg |
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Lava drips Drip.jpg |
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"Lava dip" in Theatre Cave, marking a high-stand of the lava level in the cave. C000620a.jpg |
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Tide mark bridgeing over a small tube in Theatre Cave. IMG00013.jpg |
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A lava lining has burst outward, revealing older linings behind it. The Tunnel, Mt. Eccles. C990802a.jpg |
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Scrape mark on wall. Formed by a floating slab that brushed against the soft wall lining. IMG00126.jpg |
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Mushroom-shaped mineral growths on the wall of a lava tube Match-stick for scale. Stereopair; view with crossed eyes. IMG00031.jpg and IMG00032.jpg |
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Crystals on wall of Hamilton Lava Cave. Match-stick for scale IMG00033.jpg |
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Root curtain in North Pole Cave. The thin roof of the shallow subcrustal caves allows ready penetration of roots. RootCh.jpg |