New research found rainwater can penetrate below the Earth's upper crust

Researchers at University of Southampton have found that rainwater can penetrate below the Earth’s fractured upper crust. Researchers have now found fluids derived from rainwater at the ductile crust – where temperatures of more than 300 C and high pressures cause rocks to flex and flow, and not fracture. It had been thought that surface water could not penetrate crust at these levels.Surface-derived waters reaching such depths are heated to over 400 C and significantly react with crustal rocks. Flowing through the crust, fluids leave behind deposits of minerals, which may contained a small amount of water, trapped within them. The crust ranges from 5–70 km (~3–44 miles) in depth as the outermost layer. The temperature of the crust increases… »

Source: Solar News

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