MGDS References
Bolge, L.L., M.J. Carr, M.D. Feigenson and G.E. Alvarado, "Geochemical Stratigraphy and Magmatic Evolution at Arenal Volcano, Costa Rica", Journal of Volcanology and Geothermal Research, 157: 34-48, 2006, DOI 10.1016/j.jvolgeores.2006.03.036. (View Reference)
