trail trough collapsed tunnel created lava flow
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trail trough collapsed tunnel created lava flow |
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| navigate by keyword : basaltic black brown collapsed craters created dark edges flow fluid formed former geological geology gray hot idaho igneous indian june lava magma metamorphic mineral moon national old outdoor park rock rocky solidifying sparse stone the trail trough tube tunnel usa volcanic vulcanology |
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| Former lava tube formed by hot, fluid magma solidifying on the edges and leaving a tunnel behind. Over time the roof collapsed in some places allowing light into the tunnel and rocks were deposited on the floor. Indian Tunnel, Craters of the moon National Park, Idaho, USA, June 2014. |
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Stockphotos.ro (c) 2024. All stock photos are provided by Dreamstime and are copyrighted by their respective owners. |
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