Geology of Malta Geology of Malta The Geology of Malta consists of a sequence of sedimentary rocks of late Oligocene to late Miocene age cut through by a set of extensional faults of Pliocene age. The Maltese archipelago is situated on the mainly shallow water continental platform between Sicily and North Africa that lies beneath the Sicily Channel, separating the Ionian Basin from the western Mediterranean Basin. The islands lie around 200 km to the south of the subduction boundary between the African Plate and the Eurasian Plate. The platform is crossed by a rift zone formed of three grabens: the Pantelleria graben,
North Island (Houtman Abrolhos) "Northwest Hill". On the eastern side is a seasonally inhabited permanent fishers' camp. There is an unnamed lighthouse on the western side, a trig point on the eastern side, and a gravel airstrip near the centre. The island is surrounded by a coral reef flat. This extends about km (1 mi) to the west of the island, and over 3 km (2 mi) to the north and south, but the reef margin lies quite close to the island on the eastern side. Most of the reef is not navigable, but a passage through the reef just north of the island