Sand dunes, in deserts or on the coast, It is formed by wind and can grow hundreds of meters high. its geographical structures. These structures, seen in Africa, Asia and North America, are also found on the surface of Mars.

Now scientists have managed to calculate the age of the sand dune called Lala Lallia in Morocco.

Understanding dunes will help understand the past

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According to their shapes star dune, pyramid dune Insight into dunes with names like Birkbeck University, which conducted the research in Morocco, Professor Charles Bristow and from Aberystwyth University. Professor Geoff DullerAccording to him, it is also a way to understand wind and climate in the past. As a result of the duo’s research, it was revealed that the dune named Lala Lallia is 13,000 years old.

This dune, whose height reaches 100 meters and whose arms are 700 meters wide, has not grown for eight thousand years after its original formation, but has expanded rapidly in the last few thousand years. widows, “These findings will likely surprise many people because they explain how this giant dune was formed and how it is located in the desert.” travels at a rate of 50 centimeters per year “We can see it.” say.

Using the radiation dating method, scientists discovered that the dunes When was the last time you were exposed to sunlight? They can do math. When sands are buried underground, they store energy from radioactivity in the natural environment in their crystals. During subsequent studies, the radiation in the sand grains is examined in dark rooms, comparable to a photo bath. In this way the age of the dunes can be determined.