These distinct shapes on the seafloor are fractured pillow basalts typical of volcanic rocks on Chirikof seamount. Image courtesy of Exploring Alaska's Seamounts 2002, NOAA/OER.
These distinct shapes on the seafloor are fractured pillow basalts typical of volcanic rocks on Chirikof seamount. Image courtesy of Exploring Alaska's Seamounts 2002, NOAA/OER.