pillow lava
pillow lava
pillow lava
Noun | 1. | pillow lava - lava that hardened in rounded shapes suggestive of pillows; believed to result from underwater eruptions |
单词 | pillow lava | |||
释义 | pillow lavapillow lavapillow lava
Pillow Lavapillow lava[′pil·ō ‚läv·ə]Pillow Lavalava 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 Lavabasic (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
Words related to pillow lava
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