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- Pāhoehoe and ʻAʻā Lava | Big Island Hawaii | Facts and Trivia
There are two different kinds of solidified lava you can encounter on the Big Island: pāhoehoe (pronounced ‘paw hoey hoey’) and ʻaʻā (pronounced ‘ah ah’) The surface of aʻā lava is sharp, rough, and ‘clinkery’, while Pāhoehoe lava surfaces have more smooth, billowy, or ropy crust
- pahoehoe — Wehe²wiki² Hawaiian Language Dictionaries
Smooth, unbroken, flat lava It contrasts with ʻaʻā, the rough lava These two words are commonly accepted and used to describe the lavas by scientists writing textbooks in any language in the world When so used they are written aa and pahoehoe, omitting the diacritical marks
- Lava Flow Forms - U. S. National Park Service
Pāhoehoe lava flows have surfaces that are typically ropy, billowing, hummocky, or smooth Several subtypes of this form have been described, including smooth, ropy, hummocky, shelly, slabby, spiny, toothpaste and entrail
- What Is Pahoehoe? The Smooth, Ropy Lava Explained
Pāhoehoe (pronounced “pah-HOY-hoy”) is a type of lava flow with a smooth, billowy, or rope-like surface It’s one of two main forms that basaltic lava takes, the other being ʻaʻā, which is rough and jagged Both terms come from Hawaiian, where these lava types are easiest to observe in action
- Volcano Watch — Pāhoehoe and ‘a‘ā lava flows
The two main types of lava, pāhoehoe and ‘a‘ā, differ in various properties, such as crystal and gas bubble content, as well as having slight differences in temperature These properties, along with the steepness of the underlying slope, determine the ease with which a lava flow moves
- Pahoehoe | Volcano World | Oregon State University
The low velocity of pahoehoe flows means that the skin that forms by air-cooling is not disrupted during flow and can maintain its smooth, unbroken, well-insulating surface
- Types of Lava - Pahoehoe and Aa - Science Notes and Projects
When you see lava flow or walk on old lava, the two types of flows are pahoehoe and a’a Pahoehoe (meaning “smooth lava in Hawaiian) is smooth, undulating, or ropey
- Pahoehoe | lava flow | Britannica
Pahoehoe lava flows are characterized by smooth, gently undulating, or broadly hummocky surfaces The liquid lava flowing beneath a thin, still-plastic crust drags and wrinkles it into tapestry-like folds and rolls resembling twisted rope
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