Supervolcanos!

[Turtle]

Originally Posted by belovelife

i was curious on a global level of warming if i could increase the surface temp just enought o release the super volcano

The short answer is no. The long answer is still no, but includes courses in geology.

The Yellostone supervolcano earthquake swarm continues, although the most recent official release I find is from January 9 (few details) and a report of January 6 with more detail.

Originally Posted by USGS

January 6, 2008
Earthquakes at Yellowstone are caused by a combination of geological factors including: 1) regional stress associated with normal faults (those where the valleys go down relative to the mountains) such as the nearby Teton and Hebgen Lake faults, 2) magmatic movements at depth (>7 kms or 4 miles), and 3) hydrothermal fluid activity caused as the groundwater system is heated to boiling by magmatic heat.

At this time, no one has noted any anomalous changes in surface discharges (hot springs, gas output, etc.).

YVO staff from the USGS, University of Utah and Yellowstone National Park continue to carefully review all data streams that are recorded in real-time. At this time, there is no reason to believe that magma has risen to a shallow level within the crust or that a volcanic eruption is likely. The USGS Volcano alert level for Yellowstone Volcano remains at Normal/Green. ...

Here's the most curernt USGS earthquake map of the area: >> Map Centered at 42°N, 110°W

Seismograms: >> The University of Utah

[belovelife]

off topic

[Turtle]

Originally Posted by belovelife

what do you think of this idea
we would have a huge core sample or the earth's magma chamber
great for all sorts of scientific uses
we save thousands of lives

the CIRN particle accelerator is like 35 miles (or km)
i know this i much longer
but it could be done

the question is, would it be a viable option

[edit]
and would we be able to have it stable enough
to actually finish the project w/o cave-ins from earthquakes

and if we made islands, would we write a poem like in
the united arab emrites?

I think you are off topic and request the mods (re)move your comment.

[belovelife]

Discovery Channel :: Supervolcano

[Turtle]

a new bona fide discovery in the science of geology is always welcome.

"Rosetta Stone" of supervolcanoes discovered in Italian Alps (SMU Research)

Originally Posted by SMU Research

A fossil supervolcano has been discovered in the Italian Alps' Sesia Valley by a team led by James E. Quick, a geology professor at Southern Methodist University. The discovery will advance scientific understanding of active supervolcanoes, like Yellowstone, which is the second-largest supervolcano in the world and which last erupted 630,000 years ago.

A rare uplift of the Earth's crust in the Sesia Valley reveals for the first time the actual "plumbing" of a supervolcano from the surface to the source of the magma deep within the Earth, according to a new research article reporting the discovery. The uplift reveals to an unprecedented depth of 25 kilometers the tracks and trails of the magma as it moved through the Earth's crust.
...
We think of the Sesia Valley find as the 'Rosetta Stone' for supervolcanoes because the depth to which rocks are exposed will help us to link the geologic and geophysical data," Quick says. "This is a very rare spot. The base of the Earth's crust is turned up on edge. It was created when Africa and Europe began colliding about 30 million years ago and the crust of Italy was turned on end.

[Turtle]

the idea of antipodal-focussing of shock waves from asteroid impacts causing hotspots is rather a new phenomenon. got me to thinking if any antipodal impact predictions for this new supervolcano or Long Valley have come to the fore. the idea is that if a certain hotspot was impact-caused then there ought to be a crater/impact signature at the antipode.

so let's have a look using my new-found handy-dandy antipode tool. i couldn't find an exact coordinate for the Italian jobber so i went with a general NW Italy thingy. the location for long valley is spot on. we might then expect/look-for an impact structure just off Africa/Madagascar on the ocean floor and similarly just off New Zealnd.

Antipodes Map - Antipodal location for any map point

Antipode for Italian Alps supervolcano:


Antipode for Long Valley supervolcano:

[Turtle]

following this trail, i went to google earth and got some screen captures of the antipodes of the italian alps supervolcano, the columbia flood basalts hotspot, and the long valley supervolcano. i have marked the spots with red dots. warning!!! one is wont to see what one wants to see. if you have google earth and want to explore further, the co-ordinates are at the bottom of the screenshots. what do you see in the deep deep seas?

google earth image of italian alps super volcano antipode:


google earth image of antipodes to columbia flood hotspot & long valley caldera:

[Turtle]

i haven't found a name or other identifier for the particular indian ocean basin at the location of the antipodes to long valley supervolcano and columbia basalts hotspot pictured above. remembering that i looked because the latest research/researchers explicitly suggested to look, what i see on the google earth imagery looks to me like a crater field. not only do the red antipode dots seem to be in the center of 300 mile circular structures, zooming out a bit reveals a couple more that appear, to me, to have mascons. i have to wonder if no one has done something so simple as to look on google earth, or perhaps looked but didn't have my bias, or looked with a bias & still didn't see anything, or looked, saw, but can't/won't say on account of it's not strong enough evidence??? well, don't want to get too caught up in that knot just yet until i flesh out my speculations.

i'm still looking for geologic studies of the specific basin holding the antipodes, but i found a good source with some leads and summations of geologic studies in the area to date.

Indian Ocean :: Physiography and geology -- Britannica Online Encyclopedia

Originally Posted by Britanica

Physiography and geology » Origin
The origin and evolution of the Indian Ocean is the most complicated of the three major oceans. Its formation is a consequence of the breakup, about 150 million years ago, of the southern supercontinent Gondwana (or Gondwanaland); by the movement to the northeast of the Indian subcontinent (beginning about 125 million years ago), which began colliding with Eurasia about 50 million years ago; and by the western movement of Africa and separation of Australia from Antarctica some 53 million years ago. By 36 million years ago, the Indian Ocean had taken on its present configuration. Although it first opened some 125 million years ago, almost all the Indian Ocean basin is less than 80 million years old. ...

so from this we can, erhm...must, conclude that any impact structure on the floor of the indian ocean is less than 80 million years old. haven't checked on the age of long valley, but the columbia basalts erupted between 6 & 17 million years ago. CVO Website - Columbia River Flood Basalts - Map the game is afoot.

[Turtle]

been off hunting to see if i could find anything on anomolous horizons in the ~18 million-year-old range and it's no go so fo. i was thinking an impact big enough to leave a 300 mile crater is gonna leave some irridium spread over the globe similar to the KT boundry. still, got off on some interesting tangents, which brings us to this study. these guys say a very large impact can cause a supervolcano right where it hits, and cause a melt that completely destroys the crater. now dat's da bomb!! so it goes.

http://www.mantleplumes.org/WebDocum...ringer2003.pdf

Originally Posted by Adrian P Jones1, David G Price1, Paul S DeCarli1*, Neville Price1 and Richard
Clegg2

Abstract. We examine the potential for decompression melting beneath a
large terrestrial impact crater, as a mechanism for generating sufficent quantity of
melt to auto-obliterate the crater. Decompression melting of the sub-crater mantle
may initiate almost instantaneously, but the effects of such a massive melting
event may trigger long-lived mantle up-welling or an impact plume (I-plume) that
could potentially resemble a mantle hotspot. ...

[Turtle]

been off hunting to see if i could find anything on anomolous horizons in the ~18 million year old range and it's no go so far. i was thinking an impact big enough to leave a 300 mile crater is gonna leave some irridium spread over the globe similar to the KT boundry. still, got off on some interesting tangents, which brings us to this study. these guys say a very large impact can cause a supervolcano right where it hits, and cause a melt that completely destroys the crater. now dat's da bomb!! so it goes.

http://www.mantleplumes.org/WebDocum...ringer2003.pdf

Originally Posted by Adrian P Jones1, David G Price1, Paul S DeCarli1*, Neville Price1 and Richard
Clegg2

Abstract. We examine the potential for decompression melting beneath a
large terrestrial impact crater, as a mechanism for generating sufficent quantity of
melt to auto-obliterate the crater. Decompression melting of the sub-crater mantle
may initiate almost instantaneously, but the effects of such a massive melting
event may trigger long-lived mantle up-welling or an impact plume (I-plume) that
could potentially resemble a mantle hotspot. ...