NOUN
- lava that hardened in rounded shapes suggestive of pillows; believed to result from underwater eruptions
How To Use pillow lava In A Sentence
- The ophiolite contains a complete igneous stratigraphy of serpentinized ultramafics, gabbro, sheeted dykes and pillow lavas, as described by Moores.
- The boundary between the sheeted dykes and pillow lavas is tectonic, and because of shearing, the pillow basalts are locally poorly preserved.
- In the Pechenga-Varzuga volcanosedimentary belt, alkali basalts eruptions about 2.2 Ga in age gradually gave way to tholeiite pillow lavas, Fe-picrite flows and Ti-rich basalts with ages around 1.98 Ga.
- The study on petrology, lithochemistry and geo-chemistry of the pillow lava shows that it is the product of submarine basalt.
- It comprises turbiditic elastic rocks with cherts, pillow lavas and greenstones.
- Pastures of fresh magma flows known as pillow lavas and the rubble of frequent earthquakes line the floor of this stone trough.
- Above, where hot lava erupted from the crust to be chilled by cold sea-water are purple, bulbous pillow lavas.
- These lumps can become somewhat rounded through rolling and they are piled up on top of each other to create pillow lava.
- It also used to be thought that pillow lavas could form only at great depths below the surface.
- For many years there was much debate about how pillow lavas formed.
