Would a steel object that sunk in the ocean corrode more at 100m in the ocean or 1000m? (assume that the salt?

assume that the salt content of the water is the same at both depths, just the temperature and amount of dissolved oxygen has changedWould a steel object that sunk in the ocean corrode more at 100m in the ocean or 1000m? (assume that the salt?
A nice brain teaser. The deeper the water, the colder it is. The kinetics of the reaction will slow by half with every 10 掳C drop in temperature. However, the colder the water, the greater the solubility of oxygen, more oxygen, more oxidation. The problem here is that the oxygen is limited by diffusion and would be slower at 1000m. My gut says that overall, corrosion would be slower.