Inferences about the modern organic carbon cycle from diagenesis of redox-sensitive elements in Hudson Bay

► We examined redox-sensitive element distributions in Hudson Bay sediments. ► Distributions imply low mineralization rates of organic matter in sediments. ► Accumulation rates of authigenic Cd, Re, U, and Mo are among lowest reported. ► Low rates indicate Hudson Bay is oligotrophic compared to other marine margins. ► Sedimentary redox tracers provide a way to compare rates of organic forcing among ocean regions.