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Submarine Canyons form when turbidity currents weather and erode the continental shelf.

Submarine canyons do not form due to turbidity currents weathering and eroding the continental shelf. Instead, submarine canyons are primarily formed through various geological processes, such as tectonic activity, erosion by rivers, or mass wasting events.

Submarine canyons are deep, steep-sided valleys that cut across the continental slope and extend down into the abyssal plain of the ocean floor. They can be found in different parts of the world's oceans. The exact processes and mechanisms of submarine canyon formation can vary depending on the specific location and geological context.

One common process involved in the formation of submarine canyons is the erosive action of rivers and sediment transport. Rivers on land carry sediment and erode the continental shelf, and when they reach the edge of the shelf, they can continue their erosion underwater, carving out submarine canyons. This process is known as fluvial incision.

Other factors that can contribute to submarine canyon formation include tectonic activity, where movements of the Earth's crust can create fault lines or uplifts that influence the topography of the ocean floor. Additionally, mass wasting events such as underwater landslides or turbidity currents can also play a role in the formation and modification of submarine canyons.

Overall, while turbidity currents may contribute to the shaping of submarine canyons by transporting sediment down the canyons, they are not the primary cause of their formation

Reference:
National Oceanic and Atmospheric Administration (NOAA). (n.d.). Submarine Canyons. Retrieved from