submarine canyon

(redirected from Deep sea canyon)

submarine canyon

[¦səb·mə′rēn ′kan·yən]
(geology)
Steep-sided valleys winding across the continental shelf or continental slope, probably originally produced by Pleistocene stream erosion, but presently the site of turbidity flows.
References in periodicals archive ?
The creature was swimming over a deep sea canyon on the northern edge of the Bay of Biscay.
The Deep Sea Conservation Coalition (DSCC), a group of more than 50 environmental and other groups dedicated to protecting cold-water corals and vulnerable deep-sea ecosystems, reports that trawlers today are capable of fishing deep sea canyons and rough seafloors that were once avoided for fear of damaging nets.