Posted on 10/31/2016 1:53:25 PM PDT by JimSEA
A new analysis of the topography of the central Andes shows the uplifting of Earth's second highest continental plateau was driven in part by a huge zone of melted rock in the crust, known as a magma body.
The Altiplano-Puna plateau is a high, dry region in the central Andes that includes parts of Argentina, Bolivia, and Chile, with vast plains punctuated by spectacular volcanoes. In a study published October 25 in Nature Communications, researchers used remote sensing data and topographic modeling techniques to reveal an enormous dome in the plateau.
About 1 kilometer (3,300 feet) high and hundreds of miles across, the dome sits right above the largest active magma body on Earth. The uplifting of the dome is the result of the thickening of the crust due to the injection of magma from below, according to Noah Finnegan, associate professor of Earth and planetary sciences at UC Santa Cruz and senior author of the paper.
"The dome is Earth's response to having this huge low-density magma chamber pumped into the crust," Finnegan said.
(Excerpt) Read more at sciencedaily.com ...
Yup.
Makes me feel like an 8-9 year old boy again saying 'nasty words'.
I'm doing just fine friend, you?
Inter-fingering
Dikes, subduction will lead to
An Orogeny
Don’t think I’ll be planning any vacation getaways over this mountain range any time soon.
Pointing that out got me slapped by my geology lab partner!
MAGA!
Oh nooos! It’s an Alpacalypse!!
Oh, that’s a good one!
My smoking hot red headed lab partner ended up being involved with a geography professor who was slightly less built than Conan. It lasted until she and another equally hot student discovered each other was the guys squeeze. It made for good department fireworks all around.
awe, you did make me chortle!!
Oh dear, I don't get it. Sorry.
It’s like a song:
“Oh, the weather outside is frightful ...,” etc.
I am HUNGRY and I am never the sharpest knife in the drawer when I'm hungry.
I understand perfectly. My sons notice when I’m getting drifty and ask, “When did you eat?”
Hahaha. :o)
Heck anything below a six was not even worth getting out of bed for. Anything below a four I would usually sleep though.
Now the eight that hit in 1985 did get my attention. :)
I think I’m too old to get used to regular earthquakes and volcanic eruptions.
No volcanoes though except in the far south.
Ah, good to know.
“Oh, the weather outside is frightful...”
I thought we were doing alternate lyrics to “Let it Snow!”
Only eighteen more lines and we got it.
“But the fire is so delightful,” still fits.
“And since we’ve no place to go ...,” Chileans can come to the United States, but I only know one couple, who came here in the 1970s when Chile’s government was ghastly.
“Let it blow, let it blow, let it blow.”
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