
Figure F3. Summary of recovered lithology at drill sites on the incoming plate offshore Guatemala (Deep Sea Drilling Project Site 495) and Costa Rica (Site 1039) as well as on the Costa Rica margin (Sites 1040 and 1043). Note the similarity of incoming sediment sections at Sites 1039 and 495, as well as the repetition of the Site 1039 section below the décollement at Sites 1040 and 1043. Lithologic columns are modified from Kimura, Silver, Blum, et al. (1997). Leg 205 coring at Site 1253 penetrated from ~370 to 600 mbsf, encountering the sill seen in Leg 170 sites, underlain by a thin layer of sediments and a deeper igneous section. At Site 1254, coring was carried out in the intervals 150–223 and 300–370 mbsf, encountering the lithologies and structures seen at Site 1040. At Site 1255, coring was restricted to the décollement zone (from Morris, Villinger, Klaus, et al., 2003).
