Geology of the British Indian Ocean Territory carbonates, which are present in the Seychelles for reasons that are not clear—hypothesized to include local storm erosion. The offshore waters around the archipelago contain deep-sea ferromanganese nodules, with globular, dendritic and laminated microstructures formed from iron-manganese oxide. Due to the US military presence on the island the US Geological Survey has conducted water resource analysis since 1984. Geology of the British Indian Ocean Territory The geology of the British Indian Ocean Territory comprises the Chagos Archipelago—the above water portion of the Chagos Bank. Formed from hotspot volcanism, the Chagos Bank was separated from the Nazareth Bank 36 million years
Olango Island Group Olango Island Group The Olango Island Group is a group of islands found in the Central Visayas region of the Philippines and is a part of Cebu Province. It comprises Olango island and 6 satellite islets namely: Sulpa, Gilutongan, Nalusuan, Caohagan, Pangan-an, and Camungi. Olango Island and its neighboring islets has a total land area of approximately . The island group is divided under the jurisdiction of the city of Lapu-Lapu and the municipality of Cordova. It lies east of Mactan Island and is a major tourist destination in Cebu. It is known for its wildlife sanctuary. The entire area