Discusses mapping of volcanoes, faults, canyons, and lava flows on the ocean floor using a side-scan sonar device called GLORIA (Geologic Long-Range Inclined Asdic).
(lava; flows; on the ocean floor) (a side-scan sonar device; called; GLORIA (Geologic Long-Range Inclined Asdic)
lava a side-scan sonar device
flows called
on the ocean floor
GLORIA (Geologic Long-Range Inclined Asdic