170 Scientific Prospectus

Figure 3. Summary of solid rock volume balance calculations by plotting sediment accumulation vs. time. The diagonal lines represent different rates of accretion as a volume percent of the total incoming sedimentary section assuming zero porosity. Estimates of the accreted volume for the Costa Rica accretionary prism are between the two horizontal dashed lines labeled "observed accretion" This graph represents results pertaining only to the lower slope (from McIntosh, 1992).

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