Figure 1. Gabro Botutonuo.
Figure 2. Botutonuo Beach (Foto: Coolturnesia).
Gabbro Botutonuo is equivalent to the Gabbro unit (Teog) which is Early Miocene about 23.3 million years ago (Bachri, 2006). Gabbro Botutonuo geomorphologically forms intrusive hills in the north of the Botutonuo Coastal Plain.