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Strange things happening at Mount St Helens

 
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Pye-Rate
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Joined: 14 Dec 2013
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PostPosted: Tue Nov 01, 2016 11:27 pm    Post subject: Strange things happening at Mount St Helens Reply with quote

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Just something interesting I found.


There's something strange going on inside the deadliest volcano


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Bud Brewster
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Joined: 14 Dec 2013
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Location: North Carolina

PostPosted: Tue Sep 11, 2018 5:28 pm    Post subject: Reply with quote

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The gist of the article above is that Mount St. Helens is one wacky volcano. It doesn't have a large magma chambers below it, pushing upward and providing the energy it displayed in the famous eruption.

So, what IS below Mount St. Helens? According to a series of experiments in which the researchers planted thousands of sensors and then drilled 23 holes for explosive charges to create seismic waves, they discovered that what was below the mountain was the last thing they expected — a cool wedge of serpentine rock!

What?

That sounds impossibl! But here's what the article says next.
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The researchers suggest that the magma source most likely lies to the east, near the rest of the Cascade Arc, where there are magma temperatures above 800 degrees Celsius (1,470 degrees Fahrenheit).

But they still have no idea why the magma would be traveling 50 km (30 miles) to the west in order to erupt out of Mount St. Helens.
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This is intriguing! The idea that magma from one place could travel underground and blow the top off a mountain 30 miles away is pretty scary. It flies in the face of everything volcanologists believe about volcanoes.

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