Hot spring (IMAGE)
Caption
Pictured is a continuously spouting cauldron of near-boiling water, one of a dozen spanning a 10-acre geothermal field at Mangra in southern Tibet. Helium-isotope geochemistry shows it sits above the northern edge of the Indian plate 50 miles below, where India is underthrusting Asian crust to build the Himalayas and Tibetan Plateau.
Credit
Ping Zhao (赵平)
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