Pillow lava may be the lava framework commonly fashioned when lava emerges from an underwater volcanic vent or subglacial volcano or simply a lava flow enters the ocean. The viscous lava gains a strong crust on connection with the h2o, which crust cracks and oozes supplemental large blobs or "pillows" https://lava42975.look4blog.com/52657248/top-guidelines-of-lava