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Subject Is Arkansas a reawkaening caldera?!

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[quote:Anonymous Coward 1216501:MV8xMzA4ODg1XzIxNDYyMzUwXzIwMTM3MTBF]
caleras in Arkansas?

yup!

Since there is evidence that this area is still rising in elevation,[b] it may be the ridge to the caldera[/b].
[link to en.wikipedia.org] "If the magma is rich in silica, the caldera is often filled in with ignimbrite, tuff, rhyolite, and other igneous rocks. Silica-rich magma does have a high viscosity, and therefore does not flow easily like basalt. As a result, gases tend to become trapped at high pressure within the magma. When the magma approaches the surface of the Earth, the rapid off-loading of overlying material causes the trapped gases to decompress rapidly, thus triggering explosive destruction of the magma and spreading volcanic ash over wide areas. There is a type of lava in explosive calderas called A'a. Further lava flows may be erupted. If volcanic activity continues the centre of the caldera may be uplifted in the form of a resurgent dome". Arkansas ranks first in production silica, producing one half of the worlds supply. [link to www.arkansas.com]

[b]This site from USGS states that The Arkansas delta sloped west toward the mississippi river and south toward the Gulf of Mexico at a rate of 0.5 feet per mile[/b]. [link to pubs.usgs.gov]
"The land surface generally slopes toward the Mississippi River from both the eastern and western sides of the Study Unit and to the south toward the Gulf of Mexico."
So far facts show that we have a ridge, a dome-like valley sloping east, west and south, and the most silica in the world, Not to mention much of Arkansas is in a Rift valley. [b]All of this points to the area being an explosive Caldera[/b].
[/quote]

Original Message with all of the wildlife dying unexpectedly in arkansas,and clusters of quake swarms... is this in fact, a reawakening of a long dormant caldera?

arkansas being a part of the new madrid zone,infamous for a significant quake in 1810-1811...is only one area that may be effected. that same quake, reversed the flow of the mississippi river.

will we see more activity in other areas?

on the north american continent, there are ancient fault lines reaching from northeast canada to mexico, that have long been quiet. are the smaller cluster quakes, sink holes and wildlife deaths along side these faults attributed to them?

help put the pieces together in this on going concern, with your ideas, theories, and experiences!

this map shows a possible zone of damage..it could be even further.

Pictures (click to insert)





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