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(ah-ah)...(n.)...lava rock that one should avoid walking barefoot on or:...the verbalization a haole typically makes when walking barefoot on a'a lava rock
A Hawaiian term for basaltic lava flows that are typically rough and jagged with a clinkery surface.
A type of basalt lava flow characterized by an extremely rough clinkery top and a dense interior. A'a flows are usually 110 meters thick, have flow-front velocities between 10 and 2000 meters/hour, and are associated with high-fountaining high-effusion-rate eruptions.
A Hawaiian term for lava flows that have a rough, jagged surface.
sharp lava
Hawaiian word used to describe a lava flow whose surface is broken into rough angular fragments. Click here to view a photo of 'a'a.
Hawaiian term for lava with a blocky structure.
'A'a (pronounced "ah-ah") is a Hawaiian term for a lava flow that has a rough, broken-up, spiny surface. It is composed of broken lava blocks called clinkers. The interior of 'a'a is very dense.
rough, clinker-type lava
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