Global calcite cycling constrained by sediment preservation controls

We assess the global balance of calcite export through the water column and burial in sediments as it varies regionally. We first drive a comprehensive 1‐D model for sediment calcite preservation with globally gridded field observations and satellite‐based syntheses. We then reformulate this model into a simpler five‐parameter box model, and combine it with algorithms for surface calcite export and water column dissolution for a single...