How deep is the sand in the sahara desert

Seriously – its interesting terrain. There are lots of mountains rocky plateaus and generally rugged terrain.

69-141 ft of sand.

How deep is the sand in the sahara desert. How deep is the sand of the Sahara Desert. What is below it. Is it a gradual transition or is it like pure sand dumped directly on some previous flat surface.

69-141 ft of sand. A prehistoric mega-lake is wind blown sand on top of the lake. One estimate gives the average depth of the sand to be approximately 150 metres while the top of the dunes can reach a height of 320 m from the bedrock 170-180 m high measured from sand-level.

Of course there could be cracks or fissures in the bedrock allowing sand to reach bigger depths but we just dont know. The answer to this question is not very direct. If one measures from the bedrock up to an erg the depth of the Sahara can be said to be between 21.

See full answer below. Sand typically blows in from the exposed continental shelf during ice ages when the sea levels would drop up to 120m below current levels. Today the vast hostile Sahara remains the mother of all deserts.

High points like 11204-foot 3415 m Mount Koussi in Chad rise like stone fortresses in a great battlefield of sand. A series of ridges and mountain ranges are separated by great stretched low-lying depressions like the Quyattara Depression of Egypt that lies 436 feet 143 m below sea level. There is a distinct water line on all four mounds at around 50 feet in height.

If this site is proven to be an artificial pyramidmound site it could date back to the Predynastic or the Prehistoric period of ancient Egypt making this one of the oldest known pyramidmound complexes in. One reseacher defined sand as between 02 mm and 10 mm in diameter while another used the range of 1 mm to 16 mm. Averaging the two methods we obtain 068 mm per grain.

Then dig a smallish vertical shaft one grain in diameter down through the dune until you reach non-dune. The sand will basically sort itself by size with the larger and heavier pieces of broken down sand at the bottom and the fine silt-like sand on the surface where it can be whipped around and blown into dunes or further aid the weathering process of wind erosion. These two images show the relative size of a megalake in the Sahara Desert reaching 810 feet above sea level and covering 42000 square miles left and a smaller lake at 623 feet above sea level covering 18600 square miles.

The Nile is at lower right in both images. Image derived from NASAs Shuttle Radar Topography Mission. Interesting Information on the Sahara.

The Sahara is the largest hot desert in the world. Overall it is the worlds third largest after the cold deserts of Antarctica and the Arctic. It covers an area of 92 million square kilometres in parts of Algeria Chad Egypt Libya Mali Mauritania Morocco Niger Western Sahara Sudan and Tunisia.

Most of the Sahara around 80 is not covered with sand. There are lots of mountains rocky plateaus and generally rugged terrain. Take a look at it in Google Earth.

Seriously – its interesting terrain. This sandstone which occurs beneath most of the Sahara Desert is about 900 meters 3000 feet thick and stores enormous quantities of groundwater estimated to be in excess of 18000 cubic kilometers 4300 cubic miles. The antiquity of this water has been confirmed by radiocarbon dating see Chapter 8.

The Sahara desert as defined by the World Wide Fund for Nature includes the hyper-arid center of the Sahara between latitudes 18 N and 30 N. It is one of several desert and xeric shrubland ecoregions that cover the northern portion of the African continent. Dreaming of Sahara desert.

Tunisia is a famous tourist destination because of the warm sea sand beaches and big resorts. But if you have enough time and feel a little bit adventurous think about an excursion to the Sahara desert. Well it is an unforgettable experience.

Wander among the walls of El Jem visit Matmata houses. Sand is just weathered rock if you look at a map of the sahara there are quite a few scattered mountains and highlands in the desert. That is where the sand and the original silt and clay came from originally weathering of rock and the sahara is mostly exposed rock with sand.

Deserts cover huge areas mostly between 10-30 degrees N and S of the equator. Many of these deserts are sandy at least partly. Good example is Sahara the largest desert in the world.

To describe a desert sand we first have to make clear what we are talking about. When we imagine desert sand we probably think of sand dunes. Some of the biggest catfish and sea snakes to ever exist lived in what is today the Sahara desert.

50 metres deep and once covered 3000sq km of what is now the worlds biggest sand desert. A vast ocean of sand that quite literally rained down on North Africa only a few thousand years ago. As the sand fell it choked what was previously a verdant green paradise.

From lakes and grasslands with hippos and giraffes to a vast desert North Africas sudden geographical transformation 5000 years ago was one of the.