Slowly, as if out of a mirage, the high desert ridge emerged. Hassa pointed out that the ridges in this area were made of limestone.
“Limestone sunk the city. The water table runs underneath the lime-stone, eating away at it. Unknowingly, making matters worse, the rulers of Ubar over the centuries built more fortifications on the ends of the city with a limestone wall around it. The city was ready to sink.”
“I am confused,” said Audrey. “I thought the city was blown away in the wind. Not that I’m an expert on the Qur’an, but it says, the ‘people of Ad who lived at Ubar, were destroyed by a furious wind.’ So what’s the sunken part?”
Hassa looked at their faces. “Actually, it’s basic geology. An earthquake hit the center of the city and with the water table and heavy fortifications, sunk the city.”
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