pictured pahoehoe one the two types lava flow and big island hawaii

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Pictured is Pahoehoe, one of the two types of lava flow A`a` and Pahoehoe on the Big Island, Hawaii. Royalty Free Stock Photo

Pictured is A`a`, one of the two types of lava flow A`a` and Pahoehoe on the Big Island, Hawaii. Royalty Free Stock Photo

Pictured are the two types of lava flow, A`a` and Pahoehoe on the Big Island, Hawaii. Royalty Free Stock Photo

Pictured is Pahoehoe, one of the two types of lava flow A`a` and Pahoehoe on the Big Island, Hawaii.

Pictured is Pahoehoe lava flow. The two types of lava flow are and Pahoehoe and A`a` on the Big Island, Hawaii. Pahoehoe lava is a relatively smooth lava flow that can be billowy or ropey. They can move as one sheet, by the advancement of `toes,` or as a snaking lava column. A`a` lava is the most common appearance type of lava flows that cool down forming fragmented, rough, sometimes spiny, or blocky surfaces.