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April 18, 2014 / 18 Nisan, 5774
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Posts Tagged ‘Arava Rift Valley’

Now You See Them, Now You Don’t

Thursday, May 31st, 2012

Camouflaged IDF fighter jets fly low and fast inside the Ramon Crater in the Negev Desert.

Hundreds of millions of years ago, the Negev desert was covered by an ocean. Slowly, it receded northwards, leaving behind a hump-shaped hill. The hump was slowly flattened by water and climatic forces.

Five million years ago, give or take a year, the Arava Rift Valley was formed, with rivers changing their courses, carving out the inside of the crater which was a softer rock than that overlying. The crater bottom continued to deepen at a much faster rate than the surrounding walls, which gradually increased in height.

As the crater deepened, more layers of ancient rock were exposed with rocks at the bottom of the crater being up to 200 million years old. Today, the crater is 500 meters deep with the deepest point being Ein Saharonim (Saharonim Spring) which also contains the crater’s only natural water source which sustain much of the wildlife.

We have no idea how those two jets were made…

Printed from: http://www.jewishpress.com/news/photos/now-you-see-them-now-you-dont/2012/05/31/

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