Under the Sahara Desert

WHAT HIDES UNDERS THE SAHARA DESERT

We've all heard of the Sahara, right? It's the world's largest hot desert, a sea of sand covering an area larger than the contiguous United States, but have you ever pondered What Lies Beneath the Sand Dunes? To answer this question, we must travel deep into the past of our Blue Planet.

Up until about 6 000 years ago, the Sahara was grassland. Humans were present at the time, not me spreading agriculture throughout the planet. Plenty of rainfall meant that there were lakes, rivers, pastures, and even forests, creating a completely different image of the Sahara than the barren landscape of today.

However, as the climate began to change, the region became arid and the vegetation began to disappear. The wind took away the fine sediment after there were no plant roots to hold the ground together, give it a couple of thousands of years and you get a familiar image of the Sahara sand and rocks stretching as far as the eye can see, but when it comes to volume only a quarter of the Sahara is actually sand. The desert contains many additional features such as gravel Plains Salt Flats and plateaus, which makes you wonder if we comprehend the term desert appropriately for geologists who study such terrains.

Precipitation if an area receives little or no precipitation then it is considered a desert the Sahara certainly fits the bill its average annual rainfall is only three inches compare that to the nearly 45 inches a year in New York when we look at precipitation this sandy desert is only the third largest in the world number one and two are Antarctica and the Arctic, they are larger than the Sahara by millions of square miles.

But there is a cool side to this desert at night, when the temperature is nearly the same as the average yearly temperature in Denmark. This hot and cold roller coaster makes it difficult to choose the correct wardrobe when heading into the Sahara.

And what about the show deep is it actually the depth varies between 70 and 140 feet, that's not too deep if you put the Statue of Liberty in a tall Dune half of it would still stick out of the sand its vast amounts in the Sahara were created by aeolian processes as Greek for wind over time it blows and shapes the surface of the Earth. Winds degrade the ground significantly faster in dry locations with limited vegetation. That's what happened in North Africa; beneath all that sand lies Bedrock and fractured clay; if you started digging, you'd find the same elsewhere on the planet, with one essential difference: there is some form of soil covering the Bedrock; this is not the case everywhere else on the planet.

Over thousands of years, many interesting discoveries have formed the desert sand. For example, there are petrified tree trunks, they are mostly preserved prehistoric trees, they date back to when the area was still green in some places. The trees in this fossil forest are at least 65 feet tall. The wood is so well preserved that you can still see the texture and knots there, even the fossilized pine cones. In 1992, scientists found fragments of glass in the eastern Sahara. These canary-yellow pieces of glass are scattered for hundreds of miles. They did not belong to an ancient civilization, although the ancient Egyptians used them to make jewelry. In fact, King Tut's breastplate and a magnificent scarab beetle. This beetle center is made from desert glass.

For a long time, scientists remained confused about the true origin of these fragments. They eventually concluded that the glasses were about 29 million years old. It's an impact tape. If that seems to have anything to do with impact then you're right, these rocks are formed when a meteorite hits the surface of the Earth.

it generates a lot of heat. Scientists estimate that the temperature needed to melt this mineral is close to 3,000 degrees Fahrenheit. In addition to the usual fine-grained sand, we also have melted sand in the Sahara, but the desert also harbors artifacts. other unbelievable. Shark teeth are common. Discover in Morocco, located west of the Sahara, what fossilized teeth of this marine predator do in the middle of the desert. A part of the world that was completely different millions of years ago, there was a sea crossing that is now a desert, a trans-Saharan sea route that runs through present-day Algeria and Mali

it's about 165 feet deep, enough for all kinds of aquatic animals, large catfish, sea snakes and of course sharks that live in the air. A British archaeologist even discovered tortoise shells in Mali in the 1980s. For centuries, there was even a city hidden in the desert, Tim Gad was a Roman outpost. built by Emperor Trajan in the year 100 of the present era for various reasons. The inhabitants abandoned it around 700.

the Sands of the Sahara soon engulfed the city it had remained hidden for nearly a thousand years then in the 1700s a Scottish Explorer started digging out the city, his team first uncovered a Sandstone triumphal Arch 40 feet high similar to the ones we can see in Rome and Paris today.

It`s an impact tape. If that seems to have anything to do with impact then you're right, these rocks are formed when a meteorite hits the surface of the Earth. Scientists estimate that the temperature needed to melt this mineral is close to 3,000 degrees Fahrenheit.

In addition to the usual fine-grained sand, we also have melted sand in the Sahara, but the desert also harbors artifacts. Discover in Morocco, located west of the Sahara, what fossilized teeth of this marine predator do in the middle of the desert. A part of the world that was completely different millions of years ago, there was a sea crossing that is now a desert, a trans-Saharan sea route that runs through present-day Algeria and Mali it's about 165 feet deep, enough for all kinds of aquatic animals, large catfish, sea snakes and of course sharks that live in the air. Built by Emperor Trajan in the year 100 of the present era for various reasons.

The Sahara and the Sahel have shared a historical link since ancient times Camel caravans roamed the Mediterranean coast from Africa in the north to the savannas in the south during the golden age of activity. This trade began in the 9th century, a perilous journey that took several months to complete, a route more than two and a half times longer than the length of the Grand Canyon. Explorers are still searching for evidence of ancient caravans hidden in the sands of the Sahara.