Desert in Egypt Ever Be Lake (Egypt Ancient Lake). Geologists estimate that one of the dry desert region in Egypt had been a lake in the past. Analysis on the subject published in the journal Geology, published in December 2010.

Area lakes are expected to ever have an area in excess of Lake Erie. The lake stretches to the west of the Nile, and even expected to reach the border of Sudan.

Ancient lake that formed was first estimated 250,000 years ago. After the period of its establishment, expansion and shrinkage of the lake had finally disappeared about 80,000 years ago.

Ted Maxwell, a geologist from the Smithsonian National Air and Space Museum in Washington, said, knowing the location of the lake and its formation period, we can estimate the environmental conditions when humans began migrating out of Africa.

"You will realize that this place is filled with such a large lake when human beings want out of Africa," said Maxwell. It is said that humans migrated out of Africa since 200,000 years ago.

To analyze this, the geologist uses satellite imagery taken in the period of the 80's to 90's. They say, it took a long time to identify and make the analysis.

"It was shocking when I realized, 'hey, maybe it is the area of ​​the lake'," said Maxwell.

Despite various topographical evidence supports, the evidence is not sufficient to determine the presence or absence of the lake and how its formation. Evidence supporting them are the low-lying areas Tushka. Region is said to be low enough so that the Nile water could flood it and stimulate the formation of the lake.

Other evidence is the presence of fish fossils found in a desert area and has the same characteristics of fish in the River Nile. The existence of these fish showed the existence of territorial waters associated with the River Nile.

Meanwhile, one of which was not obtained evidence is the coastline. Maxwell said the lake shoreline may have been lost by the sand that covered the lake area now.

"Another problem is the lack of evidence of sedimentation in this region," Maxwell said when interviewed by Discovery. The lack of sedimentation of the lake makes the existence of these super hard to prove.

However, Christopher Hill of Boise State University, another scientist who was not involved in this study, it was believed that the desert region was once a lake.

Problems of water resources, according to Hill, the Nile is not the only possibility. "About sources of water, the other possibility is the drainage from the highlands to the west, the source of ground water from the south, local rainfall and other potential sources," he said.

Hill said, "The remains of sediments from archaeological artifacts indicate that the lake was created from local rainfall or groundwater. Lake and then extend to the territory associated with the River Nile.