What body of water surrounds the Seychelles?
Geology of the Seychelles and has ongoing exploration for offshore oil and gas. Currently, there is no mining in Seychelles except quarrying for clay, coral and sand to use as building material. Geology of the Seychelles The geology of the Seychelles is an example of a felsic granite microcontinent that broke off from the supercontinent Gondwana within the past 145 million years and become isolated in the Indian Ocean. The islands are primarily granite rock, with some sequences of sedimentary rocks formed during rift basin periods or times when the islands were submerged in shallow water. Seychelles began to form in the Neoproterozoic as
Geology of the Seychelles its water from rainfall and desalination and receives 2300 millimeters of precipitation every year. Surface water is stored by the La Gogue dam and the Rochon dam. However, the government has had to institute water rationing during the dry season from May to October. Beginning in 2009, the Seychelles government took interest in groundwater as a backup supply in fractured granite bedrock, looking to the example of granite aquifers in Sweden and commercial water companies such as Gondwana Water Drilling Company, which drilled eight test wells in the 1990s. Seychelles had a small scale guano mining industry until the 1980s