Oldest water on Earth found deep underground – Science

“Geoscientist Barbara Sherwood Lollar at the University of Toronto and her colleagues have investigated deep mines across the world since the 1980s. Water can flow into fractures in rocks and become isolated deep in the crust for many years, serving as a time capsule of what their environments were like at the time they were sealed off.   — more—

via Oldest water on Earth found deep underground – Science.

Tortoise asks, “What might fracking  do to such investigations?”

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