Figure 5. The plate tectonic configuration of the volcanic arc that comprised the Cayman Rise and the Sierra Maestra volcanic terrain of Cuba during early Eocene time, based on results from drilling at Site 998 (Sigurdsson, Leckie, Acton, et al. 1997). To the east, the Cayman arc may have had its continuation in the Aves arc, active in Late Cretaceous to early Tertiary (Fox et al., 1971).