Map of hot springs (IMAGE)
Caption
This map shows the Indian plate colliding with the Asian plate under the Himalaya and Tibet. The yellow dots locate hot springs with helium isotope signatures showing the gas came from the hot mantle, where the Asian plate is in the subsurface. The blue dots represent the colder Indian plate. The thin white solid line lies directly above the boundary separating the Indian plate samples from the Asian plate samples.
Credit
Simon Klemperer et al.
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