Geochemistry and petrology of three granitoid rock cores from the Nicaraguan Rise, Caribbean Sea : implications for its composition, structure and tectonic evolution - Lewis, J. F. (The George Washington University. Department of Earth and Environmental Science) ; Kysar Mattietti, G. (The George Mason University. Atmospheric, Oceanic and Earth Science Department) ; Perfit, M. (University of Florida. Department of Geological Sciences) ; Kamenov, G. (University of Florida. Department of Geological Sciences)