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Topic: Yellowstone Super Volcano
Dodo_David's photo
Mon 06/08/15 12:11 AM
Edited by Dodo_David on Mon 06/08/15 12:33 AM
metalwing,

There is nothing out of date about that University of Utah news report that I quoted, since the report was issued in April of this year, and it refers to the recently published Science journal article "The Yellowstone magmatic system from the mantle plume to the upper crust."

Ironically, the weather.com article that you linked to refers to the same University of Utah news report that I quoted and gives readers a link to it.

The article that you linked to also links to the Tech Times article about the same discovery. Here is an excerpt from that Tech Times article:

A magma reservoir under the Yellowstone supervolcano has been discovered to contain enough magma to fill the Grand Canyon 11 times over, according to a new study. However, geologists say that's no reason to believe an eruption is imminent. . .

. . . The discovery of this vast underground magma chamber underlying Yellowstone, brought about by new seismic-imaging techniques, is no reason for alarm - or even thinking an eruption is more likely than before. Geologists say there isn't evidence that the reservoir is growing larger, and the chances of a massive eruption during a given year remain around one in 700,000.


The Tech Times article also links to the University of Utah report that I quoted.

Now, here is the abstract of the Science journal article "The Yellowstone magmatic system from the mantle plume to the upper crust."

The Yellowstone supervolcano is one of the largest active continental silicic volcanic fields in the world. An understanding of its properties is key to enhancing our knowledge of volcanic mechanisms and corresponding risk. Using a joint local and teleseismic earthquake P-wave seismic inversion, we revealed a basaltic lower-crustal magma body that provides a magmatic link between the Yellowstone mantle plume and the previously imaged upper-crustal magma reservoir. This lower-crustal magma body has a volume of 46,000 cubic kilometers, ~4.5 times that of the upper-crustal magma reservoir, and contains a melt fraction of ~2%. These estimates are critical to understanding the evolution of bimodal basaltic-rhyolitic volcanism, explaining the magnitude of CO2 discharge, and constraining dynamic models of the magmatic system for volcanic hazard assessment.


Also, what the authors of the above-quoted Science article discovered doesn't change the thickness of the North American tectonic plate or the direction that it is moving in. It doesn't contradict what geologist Bob Christiansen says in that National Geographic story that I quoted earlier.

. . . And speaking of geologist Bob Christiansen, he is mentioned in a webpage published by the United States Geological Survey. Here is an excerpt from the USGS webpage, which was updated on May 8,2015:

Although it is possible, scientists are not convinced that there will ever be another catastrophic eruption at Yellowstone. . . There is no evidence that a catastrophic eruption at Yellowstone is imminent, and such events are unlikely to occur in the next few centuries. Scientists have also found no indication of an imminent smaller eruption of lava.


So, no, my information is not out of date. I'm just not panicking about a statement made by a Weather Channel reporter.

By the way, the USGS also has a webpage titled "Five Things Most People Get Wrong About the Yellowstone Volcano" which was updated on May 11th of 2015.

Dodo_David's photo
Mon 06/08/15 09:10 AM

Now I am worried for yogi bear .. Awww:-)


Don't worry. Yogi Bear lives in Jellystone.

mightymoe's photo
Mon 06/08/15 02:54 PM

metalwing,

There is nothing out of date about that University of Utah news report that I quoted, since the report was issued in April of this year, and it refers to the recently published Science journal article "The Yellowstone magmatic system from the mantle plume to the upper crust."

Ironically, the weather.com article that you linked to refers to the same University of Utah news report that I quoted and gives readers a link to it.

The article that you linked to also links to the Tech Times article about the same discovery. Here is an excerpt from that Tech Times article:

A magma reservoir under the Yellowstone supervolcano has been discovered to contain enough magma to fill the Grand Canyon 11 times over, according to a new study. However, geologists say that's no reason to believe an eruption is imminent. . .

. . . The discovery of this vast underground magma chamber underlying Yellowstone, brought about by new seismic-imaging techniques, is no reason for alarm - or even thinking an eruption is more likely than before. Geologists say there isn't evidence that the reservoir is growing larger, and the chances of a massive eruption during a given year remain around one in 700,000.


The Tech Times article also links to the University of Utah report that I quoted.

Now, here is the abstract of the Science journal article "The Yellowstone magmatic system from the mantle plume to the upper crust."

The Yellowstone supervolcano is one of the largest active continental silicic volcanic fields in the world. An understanding of its properties is key to enhancing our knowledge of volcanic mechanisms and corresponding risk. Using a joint local and teleseismic earthquake P-wave seismic inversion, we revealed a basaltic lower-crustal magma body that provides a magmatic link between the Yellowstone mantle plume and the previously imaged upper-crustal magma reservoir. This lower-crustal magma body has a volume of 46,000 cubic kilometers, ~4.5 times that of the upper-crustal magma reservoir, and contains a melt fraction of ~2%. These estimates are critical to understanding the evolution of bimodal basaltic-rhyolitic volcanism, explaining the magnitude of CO2 discharge, and constraining dynamic models of the magmatic system for volcanic hazard assessment.


Also, what the authors of the above-quoted Science article discovered doesn't change the thickness of the North American tectonic plate or the direction that it is moving in. It doesn't contradict what geologist Bob Christiansen says in that National Geographic story that I quoted earlier.

. . . And speaking of geologist Bob Christiansen, he is mentioned in a webpage published by the United States Geological Survey. Here is an excerpt from the USGS webpage, which was updated on May 8,2015:

Although it is possible, scientists are not convinced that there will ever be another catastrophic eruption at Yellowstone. . . There is no evidence that a catastrophic eruption at Yellowstone is imminent, and such events are unlikely to occur in the next few centuries. Scientists have also found no indication of an imminent smaller eruption of lava.


So, no, my information is not out of date. I'm just not panicking about a statement made by a Weather Channel reporter.

By the way, the USGS also has a webpage titled "Five Things Most People Get Wrong About the Yellowstone Volcano" which was updated on May 11th of 2015.


i wouldn't put a lot of trust in any information a US government agency tells us... they are run by the lying liberals...

Dodo_David's photo
Mon 06/08/15 02:59 PM
Edited by Dodo_David on Mon 06/08/15 03:00 PM

i wouldn't put a lot of trust in any information a US government agency tells us... they are run by the lying liberals...


The USGS is apolitical.

mightymoe's photo
Mon 06/08/15 03:48 PM


i wouldn't put a lot of trust in any information a US government agency tells us... they are run by the lying liberals...


The USGS is apolitical.



yea, keep believing that...

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