Figure F6. A comparison of primary productivity (top) vs. bulk mass accumulation rate (bulk MAR) for a modern transect across the equatorial Pacific at ~140°W (after Murray et al., 1993). The bulk MAR shows the same latitudinal pattern as productivity because the vast majority of the sediment is composed of remains of plankton.

Figure F6. A comparison of primary productivity (top) vs. bulk mass accumulation rate (bulk MAR) for a modern transect across the equatorial Pacific at ~140°W (after Murray et al., 1993). The bulk MAR shows the same latitudinal pattern as productivity because the vast majority of the sediment is composed of remains of plankton.