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Figure 5. Upper Image: Digital elevation model of the Nicoya Peninsula (NASA-SRTM) showing areas of uplifted marine and fluvial terraces within the late Pleistocene Iguanazul, Carrillo-Camaronal, Cobano, and La Mansión geomorphic surfaces (red areas); and the Holocene Garza and Cabuya surfaces (yellow areas). Rectangles outline the three coastal study areas shown in Figs. 6a-c. Lower Image: Summary diagram showing uplifted terrace elevations, age data, and uplift rates within each coastal study area. Numbers in circles indicate specific study sites for Pleistocene and Holocene terraces. Terrace ages based on sea level curve correlations and isotopic dates (OSL and 14C, as indicated). Differences in uplift rates for each study area reflect variations in the subducting seafloor and seismogenic zone structure across the EPR, CNS-1, and CNS-2 segment boundaries.

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Jeff Marshall (background image courtesy of NASA-JPL)
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