A method including obtaining, for a subterranean region, a set of sedimentary pathways, a sediment attribute map, and an area of interest. From these inputs, a sedimentary fairway, and a sedimentary fairway attribute based on the location of the origin point of each member of the set of sedimentary pathways, and a spatial location of the terminal point of each member of the set of sedimentary pathways are determined. Further, the method includes dividing the sedimentary fairway into one or more sedimentary pathway domains and a sediment attribute profile for each sedimentary pathway domain based on a trajectory of each sedimentary pathway, and determining an intersection of the trajectory of each sedimentary pathway with one or more boundaries of the area of interest. The method also includes determining a sedimentary attribute at the entry points, and a sedimentary attribute at the exit points of the set of sedimentary pathways with the area of interest, and a change in the sedimentary attribute between the entry and exit points.