On dive R617, the ROV passed over many large ridges and outcrops. This particular ridge (91 m water depth) forms a cone-shaped pinnacle that is covered with crinoids and numerous types of sponges. Image courtesy of Lewis and Clark 2001, NOAA/OER.
On dive R617, the ROV passed over many large ridges and outcrops. This particular ridge (91 m water depth) forms a cone-shaped pinnacle that is covered with crinoids and numerous types of sponges. Image courtesy of Lewis and Clark 2001, NOAA/OER.