Recent mapping of portions of Bohol support an earlier reclassification of the Southeast Bohol Ophiolitic Complex into an "ophiolite" (Yumul, et al., 1994 and Diegor, et al., I994) as defined by the PENROSE Conference of 1972. Outcrops of layered gabbro were observed along the upper reaches of Alihawan River in Bgy. Lonoy, Duero, overthrusted by serpentinized wehrlite and harzburgite. A diabase dike/sill complex, on the other hand, is exposed along a roadcut that passes through the DWRP Camp in Duero. The observed chilled margins in the outcrops denote the possible presence of a spreading center within the area. The dikes show typical diabasic to basaltic phases and are observed to intrude into a diabase-microgabbro unit. As for the previously known portions of the ophiolite complex, chromite pods within dunite bodies were observed to occur together with pyroxenite in another roadcut in San Antonio, Duero. This is the only ophiolite-related mineralization mapped so far. Sections of the pillow basalt and associated sediments (cherty mudstone) were noted along the Labo-Cansiwang road in Bgy. Tabunok, Guindulman.

Imbricate and highly tectonized portions are indicated by serpentinite over pillow basalt and the same basalt over the cherty mudstone. A serpentinite mélange was also observed on top of the harzburgite. lmbrication of the Southeast Bohol Ophiolite Complex (SEBOC) is attributed to the Late Cretaceous collision along a short-lived subduction zone between a continental slab bearing the Alicia Schist (oldest rock in Bohol island) and the oceanic slab bearing the SEBOC. Further detailed mapping as well as geochemical studies will aid in the understanding of the geological framework of Bohol Island as well as the potential of the ophiolite in hosting mineralization.