The Quepos, Nicoya and Herradura oceanic igneous terranes in Costa Rica are
conspicuous features of a Mid to Late Cretaceous regional magmatic event that
encompasses similar terranes in Central America, Colombia, Ecuador and the
Caribbean. The Quepos terrane (66 Ma), which consists of ol-cpx phyric,
tholeiitic pillow lavas overlain by highly vesicular hyaloclastites, breccias
and conglomerates, i... hiện toàn bộ