REFERENCES

Barckhausen, U., Roeser, H.A., and von Huene, R., 1998. Magnetic signature of upper plate structures and subducting seamounts at the convergent margin off Costa Rica. J. Geophys. Res., 103:7079-7093.

Cande, S.C., and Kent, D.V., 1995. Revised calibration of the geomagnetic polarity timescale for the Late Cretaceous and Cenozoic. J. Geophys. Res., 100:6093-6095.

Castillo, P., Batiza, R., Vanko, D., Malavassi, E., Barquero, J., and Fernandez, E., 1988. Anomalously young volcanoes on old hot-spot traces: I. Geology and petrology of Cocos Island. Geol. Soc. Am. Bull., 100:1400-1414.

Christie, D.M., Duncan, R.A., McBirney, A.R., Richards, M.A., White, W.M., Harp, K.S., and Fox, C.G., 1992. Drowned islands downstream from the Galapagos hotspot imply extended speciation times. Nature, 355:246-248.

Coates, A.G., and Obando, J.A., 1996. The geologic evolution of the Central American Isthmus. In Jackson, J.B.C., Budd, A.F., and Coates, A.G. (Eds.), Evolution and Environment in Tropical America: Chicago (Univ. of Chicago Press), 21-55.

DeMets, C., Gordon, R.G., Argus, D.F., and Stein, S., 1990. Current plate motions. Geophys. J. Int., 101:425-478.

Graefe, K., 1998. Exhumation and thermal evolution of the Cordillera de Talamanca (Costa Rica): constraints from fission track analysis, 40Ar-39Ar, and 87Rb-87Sr chronolgy. Tuub. Geow. Arb., 39.

Graefe, K., Frisch, W., and Meschede, M., 1997. Exhumation of the Cordillera de Talamanca, SE Costa Rica. Geol. Soc. Am. Abstr. Progr., 29:A 442.

Gripp, A.E., and Gordon, R.G., 1990. Current plate velocities relative to the hotspots incorporating the NUVEL-1 global plate motion model. Geophys. Res. Lett., 17:1109-1112.

Gutscher, M.A., Malavielle, J., Lallemand, S., and Collot, J.-Y., 1999. Tectonic segmentation of the North Andean margin; impact of the Carnegie Ridge collision. Earth Planet. Sci. Lett., 168:255-270.

Hey, R., 1977. Tectonic evolution of the Cocos-Nazca spreading center. Geol. Soc. Am. Bull., 88:1404-1420.

Lonsdale, P., and Klitgord, K.D., 1978. Structure and tectonic history of the eastern Panama Basin. Geol. Soc. Am. Bull., 89:981-999.

Meschede, M., Barckhausen, U., and Worm, H.-U., 1998. Extinct spreading on the Cocos Ridge. Terra Nova, 10:211-216.

Meschede, M., Zweigel, P., Frisch, W., and Völker, D., 1999. Mélange formation by subduction erosion: the case of the Osa mélange, southern Costa Rica. Terra Nova, 11:141-148.

Shipboard Scientific Party, 1973. Site 155. In van Andel, T.H., Heath, G.R., et al., Init. Repts. DSDP, 16: Washington (U.S. Govt. Printing Office), 19-48.

Silver, P.G., Russo, R.M., and Lithgow-Bertelloni, C., 1998. Coupling of Southern American and African plate motion and plate deformation. Science, 279:60-63.

Sinton, C.W., Christie, D.M., and Duncan, R.A., 1996. Geochronology of Galápagos seamounts. J. Geophys. Res., 101:13,689-13,700.

Tamaki, K., 1997. Absolute plate motion calculator. <http://manbow.ori.u-tokyo.ac.jp/tamaki-html/hs2_nuvel1.html>.

Werner, R., Hoernle, K., van den Bogaard, P., Ranero, C., von Huene, R., and Korich, D., 1999. Drowned 14-m.y.-old Galápagos archipelago off the coast of Costa Rica: implications for tectonic and evolutionary models. Geology, 27:499-502.

White, W.M., McBirney, A.R., and Duncan, R.A., 1993. Petrology and geochemistry of the Galápagos Islands: portrait of a pathological mantle plume. J. Geophys. Res., 98:19533-19563.