Pillow lava is definitely the lava structure normally shaped when lava emerges from an underwater volcanic vent or subglacial volcano or possibly a lava stream enters the ocean. The viscous lava gains a good crust on connection with the h2o, which crust cracks and oozes extra huge blobs or "pillows" https://lava31864.bloggin-ads.com/35749156/not-known-details-about-lava