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Geologists may have solved mystery of Green River's 'uphill' route

phys.org

1–10 of 45 posts

Re: Geologists may have solved mystery of Green River's 'uphill' route

#8
post #5

Why does this article have a picture of the Maroon Bells? As opposed to something along Green River or, ideally, the 700m deep canyon being described?

Having recently gotten into watching documentaries or youtube videos of accounts of mountaineering expeditions it's amazing how lazy content creators, film makers and journalists can be when choosing what images or videos to show. You'll get something about climbing a mountain in the Andes and keep getting shown completely misleading pictures of Himalayan mountains, etc.

Re: Geologists may have solved mystery of Green River's 'uphill' route

#9

Fascinating to think of entire mountain ranges moving up and down like the skin on a wobbly pudding.

And the speed at which it happens:

> a cold, round anomaly about 200 km below the surface.

> By estimating how far the drip had fallen and calculating the speed of its descent, the researchers estimate that the drip broke off between 2 and 5 million years ago.

A few megayears later, the bit that broke off is still falling.

200km in 2m years, I make that in the ballpark of 0.1m per year - a bit less if it's > 2m years, and started below the surface.

Re: Geologists may have solved mystery of Green River's 'uphill' route

#10
post #7

For people interested in the subject generally I highly recommend John McPhee's anthology "Annals of the Former World." Actually I highly recommend everything John McPhee has written but this is a good start :).

I can also recommend: "The Earth: An Intimate History" by Richard Fortey
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