What is the fastest rate of continental rise or fall?

The surface of the rise is gently sloping with gradients between 1:100 and 1:700. ------------------ http://www.cartage.org.lb/en/themes/sciences/earth... Continental rise

A wide, gentle incline from an ocean bottom to a continental slope. A continental rise consists mainly of silts, muds, and sand, and can be several hundreds of miles wide. Although it usually has a smooth surface, it is sometimes crosscut by submarine canyons. http://www.thefreedictionary.com/continental+rise -------------- continental rise Smooth-surface accumulations of sediment which form at the base of the continental slope. The surface of the rise is gently sloping with gradients between 1:100 and 1:700. The width of the rise varies but is often several hundred kilometres. Two types of deposit lead to the formation of rises, turbidites laid down by turbidity currents flowing down the continental slope, and contourites laid down by contour currents flowing along the rise at the base of the continental margin.

http://www.encyclopedia.com/doc/1O13-continentalri... Images of continental rise http://www.google.com/images?hl=en&q=continental+r...