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Kelimutu

Woloara, Italy

Kelimutu

Kelimutu (pronounced [kəliˈmutu]) is a volcano close to the small town of Moni in central Flores island in Indonesia. It is around 50 km (31 mi) to the east of Ende, Indonesia, the capital of Ende regency in East Nusa Tenggara province. It has three volcanic crater lakes that differ in color. Tiwu A

ta Mbupu, on the western side of the island is blue in color while Tiwu Nua Muri Kooh Tai and Tiwu Ata Polo are usually colors of green and red. These lakes shift color due to changes that occur within the geology and chemistry of the volcano. The science of the Kelimutu lakes is relatively well-known, and the changes in color and temperature are concluded to be related to volcanic activity and the resulting fluid flux at vents at the bottom of the lakes. The Lake colors periodically change due to adjustments in the oxidation-reduction status of the fluid of each lake, and also considering the abundance of different major elements, such as iron and manganese. Oxidation-reduction status depends on the balance of volcanic gas input and rainfall rate, and is thought to be mediated by the groundwater system in the volcano itself. The colors in the lakes change independently from each other,...

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