The Mystery of Giant Sand Dunes Has Finally Been Solved

Sand dunes, in deserts or on sea shores, It is formed by winds and can reach hundreds of meters in height. are geographical structures. These structures, seen in Africa, Asia and North America, can also be 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 Understanding dunes with names such as Birkbeck University, which conducted the study in Morocco, Professor Charles Bristow and from Aberystwyth University. Professor Geoff DullerAccording to , it’s also a way to understand winds and climate in the past. As a result of the investigations made by the duo, it was revealed that the dune named Lala Lallia is 13 thousand years old.

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

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