The unique land of seven rainbow colors

The 8.5-hectare Seven Colored Earth Geopark in the southern Mauritius village of Chamarel is a 7-million-year-old wonder of uniquely colored sand dunes.

The unique land of seven rainbow colors

Seven Colored Earth Geopark. Video: Nature Wonders

Believed to be the result of volcanic activity, the striking colors of the mounds range from earthy tones like red, brown, and yellow to vibrant hues like purple, green, blue, and violet. While scientists aren’t entirely sure what happens in the geopark and why the sand here is so vibrant, they believe the dunes are formed by the decomposition of basalt. Mineral waters break down the chemical composition of the soil, creating iron- and aluminum-rich soil, resulting in red and blue hues.

The various hues are likely the result of molten rock cooling at different temperatures, resulting in rich blends of red and blue. Erosion from heavy rains creates unique hillocks and canyons. There are several rainbow-colored geological wonders around the world, such as the Grand Prismatic Spring in Yellowstone National Park. Many places also have colored sand, such as the green sands of Namibia. However, Seven Colored Earth is the only place where all seven colors of sand are interspersed side by side.

One of the many characteristics of the colored sands in the dunes at Chamarel is that if you mix different colors of sand, they will still separate and coalesce into their own groups. Despite Mauritius’ frequent heavy rains, the Seven Colored Earth dunes do not appear to be eroding at a significant rate.

An Khang (According to IFL Science )

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