River erosion has pushed the mountain upwards and added an extra 15 to 50 metres over the past 89,000 years
As the rivers at its base eroded, the reduction in weight on the Earth’s crust pushed the mountain up.As the rivers at its base eroded, the reduction in weight on the Earth’s crust pushed the mountain up.
The team say the process has resulted in Everest rising an extra 15 to 50 metres over the last 89,000 years, with the uplift continuing today.“Our study demonstrates that even the world’s highest peak is subject to ongoing geological processes that can measurably affect its height over relatively short geological timescales,” said Prof Jingen Dai, co-author of the study from
The team suggest the rerouting arising from this “river capture” resulted in an increase in river erosion near Everest, and the formation of the Arun River gorge. “This effect will not continue indefinitely,” said Dai. “The process will continue until the river system reaches a new equilibrium state.”
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