The samples were wet-sieved, separating them into grain-size fractions , (63-150 µm, and >150 µm). For the >150 µm fraction, individual grains that weighed more than 0.01 g were discarded in order to reduce distortion of the grain size signal resulting from the occurrence of singular large grains. Weight percentages of the sand fraction were calculated relatively to the total dry weight. Sediment weight percentages were converted to IRD fluxes.