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What could have dug these tunnels several million years ago? ⛏️
In the scorching deserts of Namibia, Oman, and Saudi Arabia, scientists have discovered intriguing structures in marble and ...
Nature12y
Drip Water Hydrology and Speleothems
The changing patterns of rainfall and snowmelt, when recharging ground water in karstified carbonate rocks, can be captured ... carbonate facies within the formation. Karstified: Karstification ...