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单词 pillow lava
释义

pillow lava


pillow lava

n. Lava that forms from an underwater eruption and is characterized by pillow-shaped masses.

pillow lava

n (Geological Science) lava that has solidified under water, having a characteristic structure comprising a series of close-fitting pillow-shaped masses
Thesaurus
Noun1.pillow lava - lava that hardened in rounded shapes suggestive of pillows; believed to result from underwater eruptionslava - rock that in its molten form (as magma) issues from volcanos; lava is what magma is called when it reaches the surface
Translations

Pillow Lava


pillow lava

[′pil·ō ‚läv·ə] (geology) Any lava characterized by pillow structure and presumed to have formed in a subaqueous environment. Also known as ellipsoidal lava.

Pillow Lava

 

lava that has been extruded into water. Flows appear as series of spheres 1-5 m in diameter, which are composed of glass along the margins and crystalline rock in the center.


Pillow Lava

 

basic (andesitic or basaltic) lava extruded into water and consisting of a series of spheres that fit closely upon one another. A glassy hardening zone is observed on the edges of each sphere; in the center of some large spheres, divergent part ing is observed. Pillow lava is found in volcanic oceanic beds in association with keratophyres and spilites. It also occurs as part of ophiolitic complexes.

pillow lava


  • noun

Words related to pillow lava

noun lava that hardened in rounded shapes suggestive of pillows

Related Words

  • lava
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更新时间:2024/12/23 9:39:13