Pahoehoe lava. Close-up of cooled and hardened pahoehoe lava. This thick ropey-looking lava can flow at speeds of up to 50 kilometres per hour. It may harden in smooth sheets or ooze out and solidify into twisted rope-like formations (seen here). Pahoehoe lava is a type of basic lava with a low silica content, giving it a low melting point. This means the lava can travel great distances from the crater or vent from which it issued. Photographed at Kilauea Volcano, Big Island, Hawaii, USA.
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TOP16632759
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達志影像
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RM
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americanbigislandclose-upcoolcooleddetailearthscienceenvironmentenvironmentalscienceformationgeographicalgeographygeologicalgeologyhardhardenedhawaiihawaiianhawaiianislandskilauealavalavaflownatureno-onenobodynorthamericapahoehoelavarockrocksrockyshieldvolcanosolidifiedunitedstatesususavolcanicvolcanovolcanologicalvolcanologyvulcanologicalvulcanology
americaamericanbigclose-upcoolcooleddetailearthenvironmentenvironmentalflowformationgeographicalgeographygeologicalgeologyhardhardenedhawaiihawaiianhawaiianislandislandskilauealavalavalavanatureno-onenobodynorthpahoehoerockrocksrockysciencescienceshieldsolidifiedstatesunitedususavolcanicvolcanovolcanovolcanologicalvolcanologyvulcanologicalvulcanology
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