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CG6468
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Never use 50 words when 10,000 will do.
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Illinois, south of the gun controllers in Chi town
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Trip
Spectemur Agendo
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Never use 50 words when 10,000 will do.
Yeah, that'll do well to decrease the odds over fighting about one word. |
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Trip
Spectemur Agendo
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Here is a map of earlier ground displacement, made via satellite GPS from benchmarks, brought about from focus on the results of a series of quake swarms 2008-2009, occurring in the northern area of Yellowstone Lake, which were a part of the period of "extraordinary caldera expansion" from 2004-2010.  sourceThis image shows the crustal expansion from the result of one dike, causing an uplift in the lake bottom meters high. Below is a much larger area of coverage than just the yellowstone lake area, including several states. GPS Displacement Map, Feb 2005-Jan 2012 sourceExamination of the vector arrows, shows a clear area of expansion, in the northern area of the park, into western Montana, trending in an east-west direction. This differential in motion between local vectors represents an expansion "zipper" of instability for any potential future eruption. The above GPS displacement vectors are derived from the below GPS station map,with each location being clickable, and leading to graphs of that station's motion over time. Yellowstone-Snake-River-Plain GPS NetworkThe idea that Yellowstone activity and expansion has somehow "subsided" or quieted down, is just not supported by the data. The scale of the area effected by the Snake River plume is nothing short of enormous. , |
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Billy_Bob
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Note the "zipper" has rotated 90 deg and is about 100 miles long...
crustal deformation and tectonic stresses are placing a huge strain in this one location. I'm beginning to think that there are other factors at work here and the triggers for an eruption are much more than just those that a strata volcano have..
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« Last Edit: April 15, 2012, 02:35:15 pm by Billy_Bob »
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Trip
Spectemur Agendo
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Note the "zipper" has rotated 90 deg and is about 100 miles long...
crustal deformation and tectonic stresses are placing a huge strain in this one location. I'm beginning to think that there are other factors at work here and the triggers for an eruption are much more than just those that a strata volcano have..
That's for damn sure. Stratovolcanoes are commonly fed by the melt coming off of plate subduction, resulting in small scale dike and magma chamber, which are periodically fed by the subduction. The scale of the snake river plume and the amount of magma, dwarfs stratovolcanoes, and this is why the Yellowstone Volcano Observatory Hazard Response Protocols, based on stratovolcano time-scales, is so inadequate. |
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Ballygrl
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So where are we now in all this? I haven't heard anything since last year.
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Billy_Bob
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That's for damn sure.
Stratovolcanoes are commonly fed by the melt coming off of plate subduction, resulting in small scale dike and magma chamber, which are periodically fed by the subduction. The scale of the snake river plume and the amount of magma, dwarfs stratovolcanoes, and this is why the Yellowstone Volcano Observatory Hazard Response Protocols, based on stratovolcano time-scales, is so inadequate.
I was noticing the rise is pretty consistent over about a 100 mile in diameter circle. this would be consistent with a rather large build up under the surface of magma.. not steam as that would be localized to a very small area as with the original assessment by YVO. its no wonder they have become deathly silent... the silence is deafening.. |
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Ballygrl
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:::::waves::::: to BillyBob, hope you're doing well.
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Billy_Bob
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So where are we now in all this? I haven't heard anything since last year.
just getting a good look now bally.. it appears things have changed dramatically in the last 6 months. the original weak spot has dissipated and a new one taken its place. the new one is 10X the size of the original... and the weak "zipper" lengthened and directional change...things are interesting and it will take a few days to fully look into it.  |
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Ballygrl
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just getting a good look now bally.. it appears things have changed dramatically in the last 6 months. the original weak spot has dissipated and a new one taken its place. the new one is 10X the size of the original... and the weak "zipper" lengthened and directional change...things are interesting and it will take a few days to fully look into it. OK, so in English (LOL) is that good or bad news? |
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Trip
Spectemur Agendo
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I was noticing the rise is pretty consistent over about a 100 mile in diameter circle. this would be consistent with a rather large build up under the surface of magma.. not steam as that would be localized to a very small area as with the original assessment by YVO. its no wonder they have become deathly silent... the silence is deafening..
I think part of the problem is that the Snake River plume itself has had a "plateau" diverge to the west from its shallowest peak, and this results in a greater surface area effected, not to mention further opportunity for magma feed upwards. As a result, it's conceivable that there may be more than just the one magma chamber located roughly in the center of the park caldera. (Magma "chambers" are much smaller and more shallow, than the "plume" itself, which is what is represented in the image below.)  Source |
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« Last Edit: April 15, 2012, 03:00:54 pm by Trip »
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Billy_Bob
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OK, so in English (LOL) is that good or bad news?
Ballygirl.... things are changing.. and rather rapidly at that.. good or bad? couldn't tell ya right now.. but this thing is no strata volcano.. so the signs of per-eruption stress could be very different.. and we could be missing them all together.. |
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Billy_Bob
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I think part of the problem is that the Snake River plume itself has had a "plateau" diverge to the west from its shallowest peak, and this results in a greater surface area effected, not to mention further opportunity for magma feed upwards. As a result, it's conceivable that there may be more than just the one magma chamber located roughly in the center of the park caldera. (Magma "chambers" are much smaller and more shallow, than the "plume" itself, which is what is represented in the image below.) Sourcethe complexities of a super volcano... LOL the fact that previous eruptions have weakend the areas above the chamber makes them all suspect. just the change in the last 6 months of stress is wild.. a rapid one at that. going to take some time to see whats going on up there.. i live to close to this thing to not know what is happening.. |
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Billy_Bob
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Ballygirl.. over the last 9 months many monitoring wells were drilled up there. lots of funky timing of the geysers and such.. ground temps in Norris area are above 115 degrees at 16" in depth which is s huge jump over the last year.. many things point to serious problems on the horizon.. I just dont have it all together yet. by the way... i am fine how are you!  |
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Ballygrl
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If an eruption is minor can we assume damage would be minimal? or does it not matter at all, any size eruption would be dangerous?
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