Kelimutu volcano is located on lost in the ocean island of Flores, which belongs to the Small Eastern Indonesian Sunda Islands. Since the island is far removed from the mainland, tourists visit it not so often, Yes, and, frankly, there is almost no infrastructure. The last time the volcano erupted in the last century, in 1968, and doesn’t give any signs of activity. But in the last eruption in the magma formed coldera, which were a kind of cups, which collect water from precipitation.
Today flying over the island can be clearly seen from the aircraft with three bright turquoise spots – this is the famous lake Kelimutu. What are they famous for?
The fact that lake Kelimutu is constantly changing colour. Turquoise lake over the year could turn into turquoise, then after a certain time become red or green. Due to this, however, the presence in water of various minerals. It is the chemical relationship of these components and leads to a dynamic change of color of the water. Well, for example, green lake suggests that, in reaction into hydrochloric and sulphuric acids, the red tint of the water indicates the interaction of hydrogen sulphide with iron.
The local aboriginal people, who belong to the tribe of Leo, there is a legend about Kelimutu. They say that the lakes are inhabited by the souls of the dead. Continue reading
Dangerous the lake is at the top of the volcano Small Semyachik. Namely, in the crater of the name of the Trinity. It attracts tourists with its amazing color — with height of bird’s flight in Sunny weather, overlooking the bright turquoise lake surrounded by black earth. This color give the lake the smallest particles of sulfur that are released into the water from the volcano. If you look at the lake from the surface of the earth, it is impossible to believe that it looks turquoise on top. From some angles the pond seems to be just muddy. The diameter of the lake is small — only 500-600 meters.
The Semyachik volcano is considered to be valid, some scientists believe that this lake was formed as a result of one of the eruptions. The water temperature here is around 30-40 degrees, but the lake gradually cools down. In some winters the surface is fully covered with ice and snow.
In the crater of the Trinity on the shore there is a small black beach, but swimming there is deadly: dissolved in water acid eat through even metal. Prolonged exposure near a lake without a mask can also harm the health. However, tourists are regularly organized not only helicopter tours over the volcano, but Hiking tours on the lake — and even with the descent into the crater to the shore.
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Lake Nyos in Cameroon is the most deadly lake in the world. No, it is not the large number of drowned people, it does not overflow the banks, and in it lives a terrible monster, devouring the locals. Located in the crater of a volcano that was considered dormant, its beauty Nios will not yield the picturesque lakes of Europe, Canada, USA and Japan.
Because of deep volcanic activity, which is still ongoing, carbon dioxide is constantly being raised through the pores in igneous rock. Meets with groundwater dissolves in them and with them falls into the lake. In the bottom layers of the lake accumulates a hell of a mixture, which does not mix with the upper layers.
Usually in crater lakes water is periodically stirred, aerated waters rise to the surface, and gases without harm to the natural environment are scattered in the atmosphere. But in Nyos and Monone the boundary between the layers is not disturbed. Gas continues to saturate the deeper layers of water until some external event will not disturb them. It can be strong wind and waves, unusually cold weather (when the upper layers of the water cool down and descend to a depth), landslide or earthquake.
Part of the deep water rises from the bottom, carbon dioxide is released from solution and bubbles rushes up, pulling even more Continue reading