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
City of Portland (Victoria) along with parts of the Shires of Glenelg and Heywood, was merged into the new Shire of Glenelg. The City of Portland was not subdivided into wards, and the nine councillors represented the entire area. City of Portland (Victoria) The City of Portland was a local government area about west-southwest of Melbourne, the state capital of Victoria, Australia. The city covered an area of , and existed from 1855 until 1994. Its area was surrounded by the Shire of Heywood, formerly known as the Shire of Portland, and the Southern Ocean. Portland was incorporated as a municipal district on 17