Pahoehoe definition geology

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WebDefinition of pahoehoe. geology. : basaltic lava having a smooth, often billowy, shiny surface Thick, folded lava such as this is known by its Hawaiian nickname of pahoehoe. A highly fluid lava, pahoehoe spreads in thin sheets and is sculpted into ropy folds as flow continues below the hardening surface.—. WebPele's Hair is the name used for hair-like strands of volcanic glass that sometimes form in areas where lava fountaining, lava cascades and vigorous lava activity occur. They are less than 1/2 millimeter in width, but can be up to two meters in length. They resemble golden-brown human hair in their size, shape and color.

Pahoehoe Definition & Meaning - Merriam-Webster

WebPahoehoe (pa-hoy-hoy) — Pahoehoe is a smooth kind of lava flow that tends to form a ropy surface: it comes from higher temperature and lower-volume eruptions, and has low … WebMar 1, 1994 · Inflated pahoehoe sheet flows have a distinctive horizontal upper surface, which can be several hundred meters across, and are bounded by steep monoclinal … bloxburg school

Basaltic Lava: Definition & Characteristics - Study.com

WebPahoehoe lava. Pahoehoe is a smooth and continuous lava crust. Pahoehoe forms when the effusion rate is low and consequently the velocity of lava flow is slow 2.Pahoehoe lava flow is usually at least 10 times slower than … WebLithology. The lithology of a rock unit is a description of its physical characteristics visible at outcrop, in hand or core samples, or with low magnification microscopy. Physical characteristics include colour, texture, grain size, and composition. [1] [2] [3] Lithology may refer to either a detailed description of these characteristics, or a ... WebMar 17, 2024 · Noun [ edit] pahoehoe ( plural pahoehoes ) A form of lava flow of basaltic rock, usually dark-colored with a smooth or ropey surface. It is one of two chief forms of lava flow emitted from volcanoes of the … free flowchart template download

Pāhoehoe, ‘a‘ā, and block lava: an illustrated history of the ...

pahoehoe – An Introduction to Geology

WebJan 1, 2016 · Definition. Pahoehoe (the word is Hawaiian for ropy) lava is the term for cooling textures of a highly fluid, gas-charged lava flows and was introduced as a technical term by Clarance Dutton, 1883. The surface of Pahoehoe lava is usually smooth, undulant, or ropy (Figure 1 ). These textures are created by deformation of the flow. Weblava. In lava. … (ferromagnesian, dark-coloured) lavas such as basalt characteristically form flows known by the Hawaiian names pahoehoe and aa (or a’a ). 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 ... free flow charts templates wordWebCooled ropey pahoehoe overlays active lava flows only detectable by heat radiating from the ground. free flow code generator

"WebDefine pahoehoe. pahoehoe synonyms, pahoehoe pronunciation, pahoehoe translation, English dictionary definition of pahoehoe. n. Lava with a smooth ropy surface. " - Pahoehoe definition geology

Pahoehoe definition geology

Foliation Types, Causes, & Facts Britannica

Webfoliation, planar arrangement of structural or textural features in any rock type but particularly that resulting from the alignment of constituent mineral grains of a metamorphic rock of the regional variety along straight or wavy planes. Foliation often occurs parallel to original bedding, but it may not be ostensibly related to any other structural direction. … WebDec 28, 2016 · Lava flows occur worldwide, and throughout history, various cultures (and geologists) have described flows based on their surface textures. As a result, surface …

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WebPahoehoe definition: hardened lava Meaning, pronunciation, translations and examples WebFeb 15, 2024 · Pahoehoe is a type of basaltic lava that is smooth and ropey. It is a Hawaiian word that comes from the verb "to paddle". These lava flows move forward slowly, with only small amounts of lava ...

WebThe first and most obvious difference is that pahoehoe flows are smooth down to a scale of a few mm. Instead of consisting of only 1-2 large flow units, a pahoehoe flow consists of … WebApr 4, 2024 · Pahoehoe definition: hardened lava Meaning, pronunciation, translations and examples

WebPahoehoe definition, basaltic lava having a smooth or billowy surface. See more. WebQuestion options: A) cinder cones, clastic cones, and stratocones. B) cinder cones, composite volcanoes, and shield volcanoes. C) shield volcanoes, composite volcanoes, and Hawaiian-style volcanoes. D) clastic cones, stratocones, and Hawaiian-style volcanoes. E) none of the above. B. Magmas with mafic compositions would most likely form volcanoes.

Webpahoehoe and aa. Term. 1 / 8. temp of p. Click the card to flip 👆. Definition. 1 / 8. high. Click the card to flip 👆.

WebDec 28, 2016 · Lava flows occur worldwide, and throughout history, various cultures (and geologists) have described flows based on their surface textures. As a result, surface morphology-based nomenclature schemes have been proposed in most languages to aid in the classification and distinction of lava surface types. One of the first to be published … bloxburg saint pateicks day conceptsWebMar 7, 2024 · Mafic (ferromagnesian, dark-coloured) lavas such as basalt characteristically form flows known by the Hawaiian names pahoehoe and aa (or a’a).Pahoehoe lava flows … free flow clothing bloxburg school build ideasWebPāhoehoe. Active pāhoehoe on the coastal plain of Kīlauea volcano, Hawai‘i. Pāhoehoe flows were active on the coastal plain today, but extended only about 400 m (440 yards) … bloxburg school build hacksWebpahoehoe." The purpose of this note is to point out that, as is the case for many other geological bodies, pillow lavas of the type described by Jones may have formed in more than one way, and not necessarily in the manner he reports. Pillow lavas, apparently identical to those described by Jones (1968), are com-mon in many parts of the ... free flowchart tool googleWebOct 31, 1997 · The lava is more like foam, and the pahoehoe that forms when the lava cools is very "shelly"; so-called because walking on it is like walking on large egg shells. The lava … freeflow core brochureWebpahoehoe - WordReference English dictionary, questions, discussion and forums. All Free. ... Geology basaltic lava having a smooth or billowy surface. Cf. aa. Hawaiian pāhoehoe; … free flow colors game